Dual-functional biomass degradable material cleaning towel and preparation method thereof
阅读说明：本技术 一种双功能生物质可降解材料清洁巾及其制备方法 (Dual-functional biomass degradable material cleaning towel and preparation method thereof ) 是由 周明杰 于 2019-08-07 设计创作，主要内容包括：本发明涉及非织造清洁材料技术领域,公开了一种双功能生物质可降解材料清洁巾及其制备方法,该清洁巾包括互为正反面且相互连接的吸尘层和擦拭层；所述吸尘层和擦拭层均为可生物降解纤维材料；吸尘层的外侧面为支撑区,所述支撑区中设有若干凹陷的储尘区；所述储尘区中设有若干竖立的单纤维；所述擦拭层的外侧面设有若干吸液微孔穴。本发明通过特殊的结构设计,使清洁巾的两面分别具有吸附灰尘功能和吸液擦拭功能,解决了现有技术中平面地拖用清洁巾功能单一,无法满足多场景使用的需要。本发明清洁巾的上下两层及连接胶体均采用可生物降解材料,可自然降解,绿色环保。(The invention relates to the technical field of non-woven cleaning materials, and discloses a dual-functional biomass degradable material cleaning towel and a preparation method thereof, wherein the cleaning towel comprises a dust absorption layer and a wiping layer which are mutually arranged on the front side and the back side and are mutually connected; the dust absorption layer and the wiping layer are both made of biodegradable fiber materials; the outer side surface of the dust absorption layer is a supporting area, and a plurality of sunken dust storage areas are arranged in the supporting area; a plurality of vertical single fibers are arranged in the dust storage area; the outer side surface of the wiping layer is provided with a plurality of liquid absorption micro-holes. According to the invention, through a special structural design, the two sides of the cleaning towel respectively have a dust adsorption function and a liquid absorption wiping function, so that the problem that the cleaning towel for plane mopping in the prior art has a single function and cannot meet the requirements of multi-scene use is solved. The upper layer and the lower layer of the cleaning towel and the connecting colloid are made of biodegradable materials, can be naturally degraded and are environment-friendly.)
1. A dual-functional biomass degradable material cleaning towel is characterized in that: comprises a dust absorption layer and a wiping layer which are mutually connected with each other on the front and the back sides; the dust absorption layer and the wiping layer are both non-woven fabrics made of biodegradable fiber materials; the outer side surface of the dust absorption layer is a supporting area, and a plurality of sunken dust storage areas are arranged in the supporting area; a plurality of vertical single fibers are arranged in the dust storage area; a plurality of liquid absorption micro-cavities are arranged on the outer side surface of the wiping layer; the dust absorption layer and the wiping layer are connected through a plurality of point-shaped colloids.
2. The cleaning sheet of claim 1, wherein:
the material of the punctiform colloid is polylactic acid; and/or
The dust storage areas are in a three-dimensional honeycomb type and are uniformly distributed; and/or
The dust storage area accounts for 30-60% of the area of the dust absorption layer.
3. The cleaning sheet of claim 1, wherein:
the liquid-absorbing micro-cavities are uniformly distributed; and/or
The liquid absorption micro-holes are 30-78 meshes.
4. The cleaning sheet of claim 1, wherein: the dust absorption layer is made of biomass synthetic fibers; the wiping layer is made of plant fibers or regenerated cellulose fibers.
5. A method of making a wipe according to any one of claims 1 to 4, characterised in that it includes the steps of:
1) preparing a dust absorption layer:
1.1) feeding biodegradable fiber materials, sequentially performing opening, mixing, carding and spunlace processes, drying and coiling to prepare spunlace non-woven fabrics;
1.2) mechanically perforating the spunlace non-woven fabric to distribute a plurality of holes on the fabric surface to obtain dust-absorbing spunlace non-woven fabric;
1.3) feeding another biodegradable fiber material, and then sequentially performing the procedures of opening, mixing and carding to obtain a longitudinally distributed fiber net;
1.4) firstly introducing the dust-absorbing spunlace non-woven fabric onto a spunlace support screen, and then overlapping the longitudinally-distributed fiber web onto the dust-absorbing spunlace non-woven fabric;
1.5) sending the superposed material into a spunlace machine, and carrying out unidirectional spunlace reinforcement on one side of the longitudinally distributed fiber web by using high-pressure water flow to ensure that single fibers in the longitudinally distributed fiber web pass through holes on the dust-absorbing spunlace non-woven fabric and are distributed in the holes to form a dust storage area;
1.6) removing water from the spunlaced material, and drying and coiling the material to prepare a dust absorption layer;
2) preparing a wiping layer;
3) preparing the cleaning towel:
3.1) respectively arranging the dust absorption layer and the wiping layer on respective unwinding frames;
3.2) adding the colloid powder particles into the powder particle hopper, so that the colloid powder particles enter the concave pits on the concave point roller through a discharge hole at the lower end of the powder particle hopper;
3.3) leading the wiping layer to the concave point roller through the input guide roller, so that the wiping layer is coated on the outer side of the lower half part of the concave point roller; the inside of the concave point roller is heated, colloid particles in the concave pits are softened due to heating, and along with the rotation of the concave point roller, the softened colloid particles in the concave pits become sticky and adhere to the surface of the wiping layer;
3.4) the wiping layer with the colloid particles adhered on the surface is sent out by an output guide roller, one surface of the wiping layer adhered with the colloid particles is overlapped with the inner side surface of the dust absorption layer and then passes through the middle of an upper and a lower composite press rollers, and the composite material obtained by overlapping is compacted;
3.5) sending the compacted composite material into a heating and drying device to further dry and solidify the colloid powder particles, and connecting the dust absorption layer and the wiping layer into a whole;
3.6) cooling and pressing the dried composite material to obtain the cleaning towel.
6. The method of claim 5, wherein: the linear density of the fibers of the longitudinally distributed fiber web in step 1.3) is greater than the linear density of the fibers of the hydroentangled nonwoven in step 1.1).
7. The method of claim 5 or 6, wherein:
in the step 1.5), the spunlace pressure of unidirectional spunlace reinforcement is 50-100 bar; and/or
In the step 1.6), removing water in the material by adopting a vacuum suction mode; drying by hot air penetrating type drying method.
8. The method of claim 5, wherein: step 2) the preparation of the wiping layer comprises the following steps:
2.1) opening, mixing and carding the biodegradable fiber material in sequence to prepare a fiber web;
2.2) carrying out a spunlace process on the fiber web to prepare a spunlace material with liquid absorption micro-holes distributed on the surface;
2.3) removing water from the spunlaced material, and drying and coiling the material to prepare the wiping layer.
9. The method of claim 5, wherein: step 3) preparing the cleaning towel by using a production device of the bifunctional biomass degradable material, wherein the device comprises a dust absorption layer unwinding frame, a wiping layer unwinding frame, a powder applying device, a plurality of cloth guide rollers, a composite compression roller, a heating and drying device and a coiling device;
the dust absorption layer unwinding frame, the cloth guide roller and the composite pressing roller are sequentially arranged; the cleaning layer unwinding frame, the powder applying device and the composite press roller are sequentially arranged, and the composite press roller is used for compounding the dust absorption layer and the cleaning layer; the composite compression roller, the heating and drying device and the coiling device are arranged in sequence;
the powder particle applying device comprises an input guide roller, a concave point roller, a powder particle hopper and an output guide roller; the input guide roller, the concave point roller and the output guide roller are arranged in sequence; a plurality of uniformly distributed pits are arranged on the surface of the pit roller; the powder particle hopper is positioned above the concave point roller, and a discharge port at the lower end of the powder particle hopper is butted with the concave point roller.
10. The method of claim 9, wherein:
a cooling press roller is arranged between the heating drying device and the coiling device; and/or
A scraper is arranged at the joint of the concave roller and a discharge hole at the lower end of the powder particle hopper; and/or
The concave point roller is an internal heating roller; and/or
The heating and drying device is a far infrared heating and drying device.
Technical Field
The invention relates to the technical field of non-woven cleaning materials, in particular to a dual-function biomass degradable material cleaning towel and a preparation method thereof.
Background
Flat mops are one of the more popular cleaning implements today. Generally, such a flat mop includes a rectangular base plate, to the upper center of which a mop rod extending upward is connected by a universal hinge; the lower surface of the bottom plate is attached with a cleaning towel. The cleaning towel is generally fixed on the bottom plate by a clamping plate type or a thread gluing type. The flat mop has the advantages that the area of the bottom plate is relatively large, the flat mop is flexible to move, the contact area of the bottom plate and the ground to be cleaned is increased, and the resistance of the mop in working is reduced, so that the cleaning efficiency is high, time and labor are saved, and the flat mop is convenient to use.
The patent with the application number of 201721689664.9 discloses a floor mop, which comprises an edge sealing, a middle layer fabric, an upper layer fabric, a left sticky cloth, a middle slide rail, a middle sticky buckle, a middle sticky cloth, a right sticky buckle, a right slide rail, a right slide rod, a bottom layer fabric, a left sticky buckle, a left slide rod and a left slide rail, wherein the left side of the bottom layer fabric is provided with the left slide rail, the right side of the bottom layer fabric is provided with the right slide rail, the left slide rail is connected with the left slide rod in a sliding manner, the upper part of the left slide rod is provided with the left sticky buckle, the upper part of the left sticky buckle is provided with the left sticky cloth, the upper part of the left sticky rod is provided with the left sticky cloth, the upper part of the middle sticky cloth is provided with the middle sticky buckle, the upper part of the middle sticky cloth is provided with the middle slide rod, the outer part of the middle slide rail is connected with the middle slide rail in a sliding manner, the outer, the two ends of the upper layer fabric, the middle layer fabric and the bottom layer fabric are respectively provided with a sealed edge. The scheme has the defects of complex structure and high processing cost.
The patent with the application number of 201120478115.3 discloses a multifunctional mopping cloth, which comprises an ash removing function block, a supporting function block and a moisture absorption function block; the support function blocks are arranged in a regular shape; the ash removal function block is arranged on the periphery of the support function block; the moisture absorption functional block is arranged inside the support functional block; the multifunctional mopping cloth organically combines the multi-purpose fibers, thereby achieving the effects of cleaning the floor, preventing burrs from falling and reducing the working strength; the moisture absorption functional block is soft in hand feeling and strong in moisture absorption and dust collection capacity, and can be tightly adsorbed on the surface of a floor when being in contact with the floor, so that liquid stains on the floor are removed; the ash removal functional block can clean solid dirt such as hair, fruit peel and the like, and has the function of balancing the high-strength moisture absorption performance of superfine fibers; the support functional block is thick in fiber and high in hardness, and plays a role in removing stubborn dirt and supporting the contact between a cloth cover and the ground. The technical scheme has the defects that the dust removing functional block, the supporting functional block and the moisture absorption functional block are all arranged on the same surface of the mopping cloth, the area of each functional block is small, and the function and the play are limited.
The patent with the application number of 201520222436.5 discloses a self-adhesive mop cloth, wherein elastic cloth is fixedly sewn on one side of the edge of a nylon sticky hair surface on the back surface of the mop cloth, a nylon sticky hook surface is fixedly sewn on the other side of the edge of the nylon sticky hair surface, the nylon sticky hair surface is fixedly sewn at the head end of the elastic cloth, and the nylon sticky hook surface and the nylon sticky hair surface on the elastic cloth are movably connected on a titanium alloy plate; after the nylon adhesive hair surface on the back of the touch cloth and the titanium alloy nylon adhesive hook surface are fixed, the nylon adhesive hair surface and the nylon adhesive hook surface on the elastic cloth are fixed on the titanium alloy plate. The touch cloth is ensured to be adhered to the titanium alloy more tightly and more firmly, the furniture is not damaged when the touch cloth wraps the edge of the titanium alloy plate, the cost is low, and the manufacture is simple. The scheme has the disadvantage of single function.
The patent with application number 201320279469.4 discloses a mop cloth of reduction in production cost, including the superfine fiber cloth layer, wherein, the superfine fiber cloth layer is trapezoidal form, and the left and right sides on superfine fiber cloth layer is provided with tears the cloth piece, tears the cloth piece and is the semicircle form, tears cloth piece and superfine fiber cloth layer integrated into one piece when making. The upper portion on superfine fiber cloth layer is provided with the fine hair cloth layer, and the fine hair cloth layer is the same with superfine fiber cloth layer shape and the surface area is equidimension, and the fine hair cloth layer covers the upper surface on superfine fiber cloth layer, and the outer fringe on fine hair cloth layer and superfine fiber cloth layer is provided with the edge sealing line, is provided with the fastening line on fine hair cloth layer and the superfine fiber cloth layer, and the fastening line is located between the upper end and the lower bottom on trapezoidal superfine fiber cloth layer, and the edge sealing line, fastening line and superfine fiber cloth layer adopt ultrasonic welding to fix between the fine hair cloth layer. The scheme has the defects of single cleaning function, high cost and nondegradable synthetic superfine fiber.
The patent with application number 200520064138.4 discloses a mop, which comprises an upper layer and a lower layer spunlace non-woven fabric layer, wherein the upper layer and the lower layer spunlace non-woven fabric layer are also provided with a needle-punched non-woven fabric layer, the combination of the water-punched non-woven fabric layer which can block stains and dust and is easy to clean and is combined with water absorption is integrated, and the mop has stronger water absorption and dirt absorption capabilities and is more suitable for cleaning the ground. The scheme has the defects of complex processing, high cost, single function and nondegradable material.
At present, the cleaning towels for the plane mop in the market are divided into textile type and non-woven fabric type, and the two types of cleaning towels have respective advantages and disadvantages and mainly have the following problems:
(1) the textile cleaning towel is formed by interweaving warp yarns and weft yarns, and the material has good breaking strength and washing fastness. However, the textile type cleaning towel is not suitable for disposable use due to complex production process and high manufacturing cost, and most of the textile type cleaning towels cannot be naturally degraded.
(2) The non-woven cloth type cleaning towel has short production flow and low manufacturing cost, and is suitable for one-time use. As the range of applications of nonwoven fabrics in the field of disposable cleaning has become wider, more sub-categories have been developed. Such as an electrostatic mop, a non-cleaning wipe, etc. However, the products are made of synthetic fibers such as terylene which can not be naturally degraded, and the material can not be naturally degraded, which inevitably brings great environmental burden.
(3) The cleaning towel for the mop in the current market usually has only a single function and cannot meet the wiping requirements in multiple scenes.
When more dust, hair and other fine dirt exist on the surface to be cleaned, the conventional wet wiping type non-woven cleaning towel cannot be used for completely adsorbing and removing dust, and secondary pollution is very easy to cause; although the cleaning towel made of the all-polyester fiber non-woven material has good electrostatic adsorption performance and can effectively adsorb dust and hair on the surface of an object, the fiber of the cleaning towel cannot be naturally degraded, and the cleaning towel has great environmental pollution. After a large amount of the composition is used, serious burden is easily generated on the environment.
When the floor with stains adhered on the surface is wiped, a wet wiping type non-woven cleaning towel with good water absorption is needed for wiping, so that the stains can be effectively removed. In a scene with more dust, it is better to dry-wipe the adsorbed dust and then wet-wipe the dust. Therefore, the conventional single-function non-woven fabric cleaning towel cannot meet the requirement, and with the upgrading of the consumption of cleaning products, a novel multifunctional cleaning towel which can meet the requirements of the two use scenes simultaneously, a preparation method and equipment are required to be developed.
Disclosure of Invention
The invention provides a cleaning towel made of a bifunctional biomass degradable material and a preparation method thereof, and aims to solve the problems that in the prior art, the cleaning towel for a planar mop has a single function, cannot meet the use requirements of multiple scenes simultaneously, cannot be naturally biodegraded, increases the environmental protection treatment pressure and the like, and better meets the requirements on the characteristic improvement of the cleaning towel in the consumption upgrading.
The specific technical scheme of the invention is as follows: a dual-function biomass degradable material cleaning towel comprises a dust absorption layer and a wiping layer which are mutually arranged on the front side and the back side and are mutually connected; the dust absorption layer and the wiping layer are both non-woven fabrics made of biodegradable fiber materials; the outer side surface of the dust absorption layer is a supporting area, and a plurality of sunken dust storage areas are arranged in the supporting area; a plurality of vertical single fibers are arranged in the dust storage area; a plurality of liquid absorption micro-cavities are arranged on the outer side surface of the wiping layer; the dust absorption layer and the wiping layer are connected through a plurality of point-shaped colloids.
The cleaning towel made of the bifunctional biomass degradable material has the following characteristics:
(1) arranging a dust absorption layer: but dust absorption layer adopts biodegradable fiber material among this application technical scheme, has higher static, changes the absorption dust when cleaning the dust, simultaneously again can natural degradation. In addition, a plurality of supporting areas and dust storage areas are arranged in the dust absorption layer through processes of spunlace, mechanical punching, spunlace fiber planting and the like; a plurality of single fibers are arranged in the dust storage area. By adopting the arrangement, the characteristic of strong electrostatic adsorption of the fibers can be fully exerted, the adsorbed dust is stored and locked in the dust storage area, the dust is prevented from falling off in the cleaning process to cause secondary pollution, and the dust collection and storage capacity of the dust collection layer is structurally enhanced.
(2) Setting of the wiping layer: in the technical scheme, the wiping layer is made of biodegradable fiber materials, so that the requirement of natural degradation can be met. Meanwhile, micro-pores on the surface can play a role in absorbing water and storing water, so that the wiping layer has good liquid absorption property and is more suitable for wet wiping.
Preferably, the material of the punctiform colloid is polylactic acid.
Preferably, the dust storage areas are in a three-dimensional honeycomb type and are uniformly distributed.
Preferably, the dust storage area accounts for 30-60% of the area of the dust absorption layer.
Preferably, the liquid-absorbing micro-cavities are uniformly distributed.
Preferably, the liquid-absorbing micro-cavities are 30 to 78 mesh.
Preferably, the dust absorption layer is made of biomass synthetic fibers; the wiping layer is made of plant fibers or regenerated cellulose fibers.
More preferably, the material of the wiping layer is cotton fiber, hemp fiber, viscose fiber, lyocell fiber, modal fiber, bamboo pulp fiber, acetate fiber and the like; the dust absorption layer material comprises polylactic acid fiber, PTT fiber, PHA fiber and the like, and the polylactic acid fiber is most preferable.
The polylactic acid (PLA) fiber is prepared by fermenting starch-containing agricultural products such as corn, wheat and beet to generate lactic acid, and then performing polycondensation and melt spinning. The polylactic acid fiber is a synthetic fiber which can be planted as a raw material and is easy to plant, and the waste can be naturally degraded in nature. It can be decomposed into carbon dioxide and water by the action of microbes in soil or seawater, and when it is burnt, it does not emit toxic gas and cause pollution, so that it is a sustainable ecological fibre. Polylactic acid (PLA) fiber has good biodegradability, and can be completely decomposed into CO in nature after being discarded2And H2And O. The two can be changed into starch which is the raw material of lactic acid through photosynthesis. If buried together with other organic waste, PLA fibers will decompose within a few months and completely decompose into CO2And H2And O. Polylactic acid (PLA) has the highest melting point, high crystallinity and good transparency among all biodegradable polymers, and is very suitable for fibers, films and molded products. The physical property of the PLA fiber is close to that of PET fiber (terylene) and PA fiber (nylon), and the dyeing property is superior to that of the PET fiber. The dust absorption layer adopts polylactic acid (PLA) fibre water thorn non-woven fabrics among this application technical scheme, because polylactic acid fibre belongs to living beings synthetic fiber, has higher static, changes the absorption dust when wiping the dust, can naturally degrade again simultaneously.
The plant fiber and the regenerated cellulose fiber adopted in the wiping layer are cellulose fibers. Cellulose fibers are fibers having a basic chemical structure of cellulose molecules, and are classified into natural cellulose fibers and artificial cellulose fibers. The natural cellulose fiber comprises natural cotton fiber, hemp fiber, etc.; the artificial cellulose fiber includes viscose fiber, lyocell fiber, modal fiber, bamboo pulp fiber, cuprammonium fiber, acetate fiber, etc. The cellulose fiber has the characteristics of nature, comfort, biodegradability, renewability and environmental protection, and in addition, the cellulose fiber also has the characteristic of strong hygroscopicity.
Preferably, the cleaning towel made of the dual-function biomass degradable material is packaged by adopting a degradable PE material.
The product of this application adopts degradable PE material as packaging material. The adopted degradable PE package is a PE bag added with a so-called revert additive master batch for improving degradability, and the environmental protection design concept of full-range natural degradation of products is met.
Because the cleaning towel made of the bifunctional biomass degradable material belongs to a new product, no existing mature technology can be used for directly producing the product, the invention provides a preparation method of the cleaning towel made of the bifunctional biomass degradable material, which comprises the following steps:
1) preparing a dust absorption layer:
1.1) feeding biodegradable fiber materials, sequentially performing the processes of opening, mixing, carding and spunlacing, drying and coiling to prepare the spunlace non-woven fabric.
1.2) mechanically perforating the spunlace nonwoven fabric to distribute a plurality of holes on the fabric surface to obtain the dust-absorbing spunlace nonwoven fabric.
1.3) feeding another biodegradable fiber material, and then sequentially opening, mixing and carding to obtain a longitudinally distributed fiber net.
1.4) firstly introducing the dust-absorbing spunlace nonwoven fabric onto a spunlace support screen, and then overlapping the longitudinally distributed fiber web onto the dust-absorbing spunlace nonwoven fabric.
And 1.5) feeding the superposed material into a spunlace machine, and carrying out unidirectional spunlace reinforcement on one side of the longitudinally distributed fiber web by using high-pressure water flow, so that single fibers in the longitudinally distributed fiber web pass through holes on the dust-absorbing spunlace non-woven fabric and are distributed in the holes to form a dust storage area.
1.6) removing water from the spunlaced material, and drying and coiling the material to prepare the dust absorption layer.
Adopt above-mentioned technical scheme's advantage to lie in:
in the step 1.2), a mechanical punching mode is adopted to replace spunlace hole forming, so that on one hand, the arrangement of the hole patterns is regular, the edges are clear, the hole intervals are controllable, excessive fiber fragment interweaving does not exist in gaps among the holes, and the holes are guaranteed to have three-dimensional effect and small deformation in the using process; meanwhile, the problems of water needle blockage, water resource waste and the like in the spunlace pore-forming preparation process are avoided. Therefore, the mechanical punching can ensure that the through holes are regularly arranged, the hand feeling is soft, the hole pattern has strong third dimension, and the requirements of softness, fluffiness and small deformation of the dust absorption layer can be better met.
In the step 1.5), the laminated material is subjected to unidirectional spunlace by adopting high-pressure water flow, so that the single fibers at the position of the hole are implanted into the hole by the high-pressure water flow to form a single fiber state; and the fibers at the non-hole positions are implanted into the dust-absorbing spunlace nonwoven fabric unidirectionally to integrate the two layers of materials, thereby completing the preparation of the dust-absorbing layer.
2) The wiping layer is relatively simple to manufacture and can be directly manufactured by the prior art.
3) Preparing the cleaning towel:
3.1) respectively arranging the dust absorption layer and the wiping layer on respective unwinding frames.
3.2) adding the colloid powder particles into the powder particle hopper, so that the colloid powder particles enter the concave pits on the concave point roller through a discharge hole at the lower end of the powder particle hopper.
3.3) leading the wiping layer to the concave point roller through the input guide roller, so that the wiping layer is coated on the outer side of the lower half part of the concave point roller; the inside of the concave point roller is heated, colloid particles in the concave pits are softened due to heating, and along with the rotation of the concave point roller, the softened colloid particles in the concave pits become sticky and adhere to the surface of the wiping layer.
3.4) the wiping layer with the colloid particles adhered on the surface is sent out by an output guide roller, one surface of the wiping layer adhered with the colloid particles is overlapped with the inner side surface of the dust absorption layer and then passes through the middle of an upper and a lower composite press rollers, and the composite material obtained by overlapping is compacted.
3.5) sending the compacted composite material into a heating and drying device to further dry and solidify the colloid powder particles, and connecting the dust absorption layer and the wiping layer into a whole.
3.6) cooling and pressing the dried composite material to obtain a finished product.
Preferably, the linear density of fibers of the longitudinally distributed web in step 1.3) is greater than the linear density of fibers of the hydroentangled nonwoven in step 1.1).
The reason for the above limitation is that: the greater the linear density, the coarser the fiber. Thicker single fibers are adopted in the dust storage area, and the thick diameter and the high rigidity of the fibers are beneficial to the vertical distribution of the single fibers in the three-dimensional honeycomb-shaped holes and the exertion of the dust storage function.
Preferably, in the step 1.5), the hydro-entangled pressure of the unidirectional hydro-entangled reinforcement is 50-100 bar.
Preferably, in the step 1.6), the material moisture is removed by adopting a vacuum suction mode; drying by hot air penetrating type drying method. The limitation can keep the spun-laced material to a certain thickness to the maximum extent, improve the fullness of the material and form an effective dust storage space.
Preferably, the step 2) of preparing the wiping layer comprises the following steps:
2.1) the biodegradable fiber material is made into a fiber net through the working procedures of opening, mixing and carding in turn.
2.2) carrying out a spunlace process on the fiber web to prepare the spunlace material with the liquid absorption micro-holes distributed on the surface.
2.3) removing water from the spunlaced material, and drying and coiling the material to prepare the wiping layer.
The production device of the cleaning towel made of the bifunctional biomass degradable material comprises a dust absorption layer unwinding frame, a wiping layer unwinding frame, a powder particle applying device, a plurality of cloth guide rollers, a composite compression roller, a heating and drying device and a coiling device;
the dust absorption layer unwinding frame, the cloth guide roller and the composite pressing roller are sequentially arranged; the cleaning layer unwinding frame, the powder applying device and the composite press roller are sequentially arranged, and the composite press roller is used for compounding the dust absorption layer and the cleaning layer; the composite compression roller, the heating and drying device and the coiling device are arranged in sequence;
the powder particle applying device comprises an input guide roller, a concave point roller, a powder particle hopper and an output guide roller; the input guide roller, the concave point roller and the output guide roller are arranged in sequence; a plurality of uniformly distributed pits are arranged on the surface of the pit roller; the powder particle hopper is positioned above the concave point roller, and a discharge port at the lower end of the powder particle hopper is butted with the concave point roller.
Preferably, a cooling press roller is arranged between the heating and drying device and the coiling device.
Preferably, a scraper is arranged at the joint of the concave point roller and the discharge hole at the lower end of the powder particle hopper and used for removing redundant powder particles on the concave point roller.
Preferably, the pit roll is an internally heated roll.
Preferably, the heating and drying device is a far-infrared heating and drying device. The far infrared heating mode can be used for quickly drying the interior of the material, and has high drying efficiency and high production speed.
Compared with the prior art, the invention has the beneficial effects that:
(1) the product of the invention is arranged through a special structure, so that two sides of the same product respectively have the functions of dust adsorption and liquid absorption wiping, and the problem that the cleaning towel for plane mopping in the prior art has single function and cannot meet the requirement of multi-scene use is solved.
(2) The upper layer, the lower layer and the connecting colloid of the mop cleaning towel adopt biodegradable materials, and the mop cleaning towel effectively solves the problems that the mop cleaning towel in the prior art cannot be naturally degraded and has large influence on environmental protection under the condition of meeting the use function.
(3) The preparation method of the bifunctional biomass degradable material cleaning towel solves the problem that no suitable preparation process exists in the prior art, and is reasonable in production flow, simple in production process and high in practicability. The designed special powder applying device is reasonable in design, simple to operate and high in production efficiency, and effectively solves the problem of interconnection of the dust collection layer and the wiping layer.
Drawings
FIG. 1 is a schematic cross-sectional view of a cleaning towel made of a bifunctional biomass degradable material;
FIG. 2 is a schematic surface structure diagram of a dust absorption layer in the cleaning towel made of the bifunctional biomass degradable material;
FIG. 3 is a schematic surface structure diagram of a wiping layer in a cleaning towel made of the bifunctional biomass degradable material;
FIG. 4 is a schematic structural diagram of a production device of a cleaning towel made of a bifunctional biomass degradable material;
fig. 5 is a schematic structural view of the powder particle application apparatus.
The reference signs are: the device comprises a supporting area 1, a
Detailed Description
The present invention will be further described with reference to the following examples. The devices, connections, and methods referred to in this disclosure are those known in the art, unless otherwise indicated.
General examples
As shown in fig. 1-3, a dual-function cleaning towel made of a biomass degradable material comprises a dust absorption layer 4 and a
The dust absorption layer 4 and the
As shown in fig. 4, a production device of a dual-functional biomass degradable material cleaning towel comprises a dust-absorbing
The dust absorption
The powder applying device is fixed on the
The
The preparation method of the cleaning towel comprises the following steps:
1) preparing a dust absorption layer:
1.1) feeding biodegradable fiber materials, sequentially performing the processes of opening, mixing, carding and spunlacing, drying and coiling to prepare the spunlace non-woven fabric.
1.2) mechanically perforating the spunlace nonwoven fabric to distribute a plurality of holes on the fabric surface to obtain the dust-absorbing spunlace nonwoven fabric.
1.3) feeding another biodegradable fiber material, and then sequentially opening, mixing and carding to obtain a longitudinally distributed fiber net.
1.4) firstly introducing the dust-absorbing spunlace nonwoven fabric onto a spunlace support screen, and then overlapping the longitudinally distributed fiber web onto the dust-absorbing spunlace nonwoven fabric.
And 1.5) sending the superposed material into a spunlace machine, and carrying out unidirectional spunlace reinforcement on one side of the longitudinally distributed fiber web by using high-pressure water flow (the spunlace pressure is 50-100 bar), so that single fibers in the longitudinally distributed fiber web pass through holes in the dust-absorbing spunlace non-woven fabric and are distributed in the holes to form a dust storage area.
1.6) removing water from the spunlaced material by adopting a vacuum suction mode, and then carrying out hot air penetrating type drying and coiling procedures to prepare the dust absorption layer.
It should be noted that the linear fiber density of the longitudinally distributed fiber web in step 1.3) is greater than the linear fiber density of the hydroentangled nonwoven in step 1.1).
2) Preparation of the wiping layer:
2.1) the biodegradable fiber material is made into a fiber net through the working procedures of opening, mixing and carding in turn.
2.2) carrying out a spunlace process on the fiber web to prepare the spunlace material with the liquid absorption micro-holes distributed on the surface.
2.3) removing water from the spunlaced material, and drying and coiling the material to prepare the wiping layer.
3) Preparing the cleaning towel:
3.1) respectively arranging the dust absorption layer and the wiping layer on respective unwinding frames.
3.2) adding the colloid powder particles into the powder particle hopper, so that the colloid powder particles enter the concave pits on the concave point roller through a discharge hole at the lower end of the powder particle hopper.
3.3) leading the wiping layer to the concave point roller through the input guide roller, so that the wiping layer is coated on the outer side of the lower half part of the concave point roller; the inside of the concave point roller is heated, colloid particles in the concave pits are softened due to heating, and along with the rotation of the concave point roller, the softened colloid particles in the concave pits become sticky and adhere to the surface of the wiping layer.
3.4) the wiping layer with the colloid particles adhered on the surface is sent out by an output guide roller, one surface of the wiping layer adhered with the colloid particles is overlapped with the inner side surface of the dust absorption layer and then passes through the middle of an upper and a lower composite press rollers, and the composite material obtained by overlapping is compacted.
3.5) sending the compacted composite material into a heating and drying device to further dry and solidify the colloid powder particles, and connecting the dust absorption layer and the wiping layer into a whole.
3.6) cooling and pressing the dried composite material, and then feeding the composite material into a lap former to obtain the coiled material of the cleaning towel.
3.7) adopting non-woven fabric product processing equipment to cut, cut or fold the coiled material into a semi-finished product according to requirements.
And 3.8) packaging the semi-finished product by adopting a degradable PE bag to prepare a finished product of the dual-function biomass degradable material cleaning towel.
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