阅读说明：本技术 一种应用在纸尿裤、卫生巾上的纯棉单向导湿无纺布 (Pure cotton one-way moisture-conducting non-woven fabric applied to paper diapers and sanitary towels ) 是由 舒宗华 王文启 于 2020-05-25 设计创作，主要内容包括：本发明提供了一种应用在纸尿裤、卫生巾上的纯棉单向导湿无纺布,属于无纺布的后整技术领域。该纯棉单向导湿无纺布包括亲水层,所述亲水层具有无纺布背面和无纺布正面,其中,无纺布正面直接接触皮肤面,且分别设置有防水层和无纺布导湿槽,背面为亲水面；本发明的纯棉单向导湿无纺布能够满足人们对纯棉纸尿裤和卫生巾的需求,且具有十分卓越的吸湿干爽功能,纯棉触感更加亲肤舒适,应用在婴儿纸尿裤上能很好的减少婴儿红屁股现象,可取代市场上普遍应用在纸尿裤和卫生巾上的化纤材料同时满足现代人对高品质生活的良好追求。(The invention provides a pure cotton one-way moisture-conducting non-woven fabric applied to paper diapers and sanitary towels, and belongs to the technical field of non-woven fabric finishing. The pure cotton one-way moisture-conducting non-woven fabric comprises a hydrophilic layer, wherein the hydrophilic layer is provided with a non-woven fabric back surface and a non-woven fabric front surface, the non-woven fabric front surface is directly contacted with a skin surface and is respectively provided with a waterproof layer and a non-woven fabric moisture-conducting groove, and the back surface is a hydrophilic surface; the pure cotton one-way moisture-conducting non-woven fabric can meet the requirements of people on pure cotton paper diapers and sanitary towels, has a very excellent moisture-absorbing and drying function, is more skin-friendly and comfortable in touch feeling, can well reduce the red buttocks phenomenon of infants when being applied to the infant paper diapers, can replace chemical fiber materials commonly applied to the paper diapers and the sanitary towels in the market and simultaneously meet the good pursuit of modern people on high-quality life.)

1. The utility model provides an use one-way wet non-woven fabrics of leading of pure cotton on panty-shape diapers, sanitary towel which characterized in that: including hydrophilic layer (1), hydrophilic layer (1) has the non-woven fabrics openly (2) and non-woven fabrics back (3), the non-woven fabrics openly (2) is direct contact skin face, just be provided with waterproof layer (4) and non-woven fabrics moisture-conducting groove (5) on the non-woven fabrics openly (2) respectively.

2. The pure cotton one-way moisture-conducting non-woven fabric according to claim 1, which is characterized in that: the liquid on the front surface (2) of the non-woven fabric is transferred to the back surface (3) of the non-woven fabric through the hydrophilic layer (1).

3. The pure cotton one-way moisture-conducting non-woven fabric according to claim 1, which is characterized in that: the waterproof layer (4) is in a polygonal grid shape.

4. The pure cotton one-way moisture-conducting non-woven fabric according to claim 3, wherein: the waterproof layer (4) is in a regular hexagon or circular pattern.

5. The pure cotton one-way moisture-conducting non-woven fabric according to claim 3, wherein: the waterproof layers (4) are attached to the front surfaces (2) of the non-woven fabrics, and the non-woven fabric moisture-guiding grooves (5) are arranged between the waterproof layers (4).

6. The pure cotton one-way moisture-conducting non-woven fabric according to claim 1, which is characterized in that: the hydrophilic layer (1) is made of pure cotton non-woven fabric.

7. The pure cotton one-way moisture-conducting non-woven fabric according to claim 1, which is characterized in that: the waterproof layer comprises the following raw materials in parts by weight: 18-35 parts of methyl silicone oil, 15-30 parts of paraffin microemulsion, 3-5 parts of zein and 2-4 parts of emulsifier; the hydrophilic layer comprises the following raw materials in parts by weight: 55-65 parts of moisture absorption and sweat releasing auxiliary agent, 15-25 parts of quick-drying auxiliary agent, 3-10 parts of pullulan, 3-8 parts of chitosan, 3-5 parts of chitin, 2-5 parts of lecithin, 1-5 parts of plant essential oil and 1200 parts of water and 2400 parts.

8. The pure cotton one-way moisture-conducting non-woven fabric according to claim 7, wherein: the weight ratio of the pullulan polysaccharide to the chitosan to the lecithin is 5-8:3-6: 3.

9. The pure cotton one-way moisture-conducting non-woven fabric according to claim 7, which is characterized in that: the weight ratio of the methyl silicone oil to the zein is 7-8: 1.

10. The method for preparing a purified cotton one-way moisture-conducting nonwoven fabric as claimed in any one of claims 1 to 9, wherein: the method comprises the following steps:

(1) preparing hydrophilic moisture absorption non-woven fabric: mixing and uniformly stirring a moisture-absorbing and sweat-releasing auxiliary agent, a quick-drying auxiliary agent, pullulan, chitosan, chitin, lecithin, plant essential oil and water to obtain hydrophilic slurry, padding the pure cotton non-woven fabric into the hydrophilic slurry by adopting a padding method, and baking to obtain the hydrophilic non-woven fabric;

(2) unidirectional moisture-conducting printing: and (2) heating the paraffin micro-emulsion, adding methyl silicone oil, stirring, adding an emulsifier and zein, uniformly stirring to obtain a waterproof slurry, printing the waterproof slurry on the front surface of the hydrophilic non-woven fabric obtained in the step (1) by adopting rotary screen printing, and then baking to obtain the pure cotton one-way moisture-conducting non-woven fabric.

Technical Field

The invention relates to the technical field of non-woven fabric finishing, in particular to a pure cotton one-way moisture-conducting non-woven fabric applied to paper diapers and sanitary towels.

Background

Nowadays, society is continuously advanced, scientific technology is more rapidly advanced, various new materials and new processes are continuously applied to the textile industry, but no matter how the new functions of the new materials and the new processes are changed, the demand of consumers on pure cotton products is still taken as the first choice, and meanwhile, higher requirements are also put forward on pure cotton. The texture of the natural fiber is comfortable and skin-friendly, more functions are provided on the basis, the natural fiber is the pursuit of consumption trend and market, and the requirement for the comfort and skin-friendliness of the natural fiber is established in a continuous turn, and particularly, the natural fiber is a product for babies, children, women and children, and provides higher requirements for pure cotton functional cloth for comfort and skin-friendliness. Among various types of fabrics, the unidirectional moisture-transfer fabric is designed to transfer moisture in one direction, so that sweat or water can be quickly diffused from one side of the fabric to the other side of the fabric, and the pursuit of people for comfortable and healthy life is met. However, most of the unidirectional moisture-conducting fabrics still adopt a design that one side is completely hydrophobic and the other side is completely hydrophilic, but the moisture-conducting effect of the design is poor, sweat or water can only be transferred by means of gravity or friction force, and the comfort and the durability are low. In order to meet the situation, more and more researchers develop a series of experimental researches, and seek for a unidirectional moisture-conducting fabric with higher comfort and stronger durability, so as to meet the increasing demands of people.

Chinese patent CN106958077A discloses a preparation process of pure cotton one-way moisture-transfer non-woven fabric, a one-way moisture-transfer cotton diaper and a sanitary towel, wherein the preparation process of the pure cotton one-way moisture-transfer non-woven fabric comprises the following steps: overlapping, wherein the hydrophilic cotton net and the water repellent mesh full cotton spunlace nonwoven are overlapped to form a composite cotton net; carrying out spunlace combination, namely carrying out spunlace reinforcement on the composite cotton net through a spunlace device, and mutually entangling and cohesion the hydrophilic cotton net fibers and the mesh spunlace non-woven fabric under the action of high-pressure water jet, so that the hydrophilic cotton net fibers and the mesh spunlace non-woven fabric are combined into a whole; drying and coiling, drying the spunlaced composite all-cotton non-woven fabric and coiling. The hydrophilic cotton net and the water repellent mesh spunlace non-woven fabric are compounded through spunlace, so that the fibers of the hydrophilic cotton net and the water repellent mesh spunlace non-woven fabric are mutually entangled and cohered, the upper surface of the one-way moisture-conducting pure cotton spunlace non-woven fabric is of a mesh skeleton structure, water is drained in a dry and comfortable manner, and partial hydrophilic cotton fibers brought from a lower layer through water needles in a processing process exist in the middle of regularly arranged meshes, so that the one-way moisture-conducting effect is better. However, in the production process of the invention, mainly adopting the spunlace composite method, the processing of the fabric is extremely energy-consuming, the process is more complex, and the maintenance cost of the equipment is also very high.

Chinese patent CN107190404B discloses a graphene and bio-based fiber knitted fabric and a production method thereof, the fabric is of a single-side weft knitting weave structure, the front side of the fabric is C/R blended yarns containing graphene, and the back side of the fabric is formed by sorona bio-based fibers containing a pipeline moisture-conducting structure. The invention adopts graphene and bio-based fiber to cover and interweave, has far infrared internal heating health care physiotherapy effect, simultaneously has the functions of mosquito prevention, antibiosis, mite prevention, antistatic radiation protection, ventilation, unidirectional moisture conduction and quick drying, and has elastic memory shape keeping effect on clothes and bedclothes. However, the one-way wet permeability index of the product in the invention is only 210.5-277.6, namely the three-level standard, and the performance is still relatively poor.

Aiming at the problems of complex production, poor one-way moisture-conducting capability, irritation to skin and the like of the one-way moisture-conducting non-woven fabric, the one-way moisture-conducting non-woven fabric with simple preparation process and excellent performance is sought, and the one-way moisture-conducting non-woven fabric has strong one-way moisture-conducting capability, soft and comfortable hand feeling, hydrophilic property and no irritation to skin and further meets the increasing market demand.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a pure cotton one-way moisture-conducting non-woven fabric applied to paper diapers and sanitary towels so as to meet the higher requirements of people on sanitary products.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a pure cotton one-way moisture-conducting non-woven fabric applied to paper diapers and sanitary towels, which comprises a hydrophilic layer (1), wherein the hydrophilic layer (1) is provided with a non-woven fabric front surface (2) and a non-woven fabric back surface (3), the non-woven fabric front surface (2) is a surface directly contacting with skin, and the non-woven fabric front surface (2) is respectively provided with a waterproof layer (4) and a non-woven fabric moisture-conducting groove (5).

Further, the liquid on the front side (2) of the nonwoven is transferred to the back side (3) of the nonwoven via the hydrophilic layer (1).

Further, the waterproof layer (4) is in a polygonal grid shape. The polygonal grid shape ensures that liquid entering the hydrophilic layer through the non-woven fabric moisture-guiding groove can not flow back to the waterproof layer, so that the front surface of the non-woven fabric is kept dry and comfortable.

Preferably, the shape of the waterproof layer (4) is a regular hexagonal or circular pattern.

Furthermore, the waterproof layer (4) is attached to the front surface (2) of the non-woven fabric, and the non-woven fabric moisture-conducting grooves (5) are arranged between the waterproof layers (4).

Furthermore, the hydrophilic layer (1) is made of pure cotton non-woven fabric.

Further, the waterproof layer comprises the following raw materials in parts by weight: 18-35 parts of methyl silicone oil, 15-30 parts of paraffin microemulsion, 3-5 parts of zein and 2-4 parts of emulsifier; the hydrophilic layer comprises the following raw materials in parts by weight: 55-65 parts of moisture-absorbing and sweat-releasing auxiliary agent, 15-25 parts of quick-drying auxiliary agent, 3-10 parts of pullulan, 3-8 parts of chitosan, 3-5 parts of chitin, 2-5 parts of lecithin, 1-5 parts of plant essential oil and 2400 parts of water 1200-containing material.

Preferably, the waterproof layer comprises the following raw materials in parts by weight: 20-30 parts of methyl silicone oil, 18-25 parts of paraffin microemulsion, 3-4 parts of zein and 2-3 parts of emulsifier; the hydrophilic layer comprises the following raw materials in parts by weight: 58-62 parts of moisture-absorbing and sweat-releasing auxiliary agent, 16-22 parts of quick-drying auxiliary agent, 5-8 parts of pullulan, 4-6 parts of chitosan, 4-5 parts of chitin, 3-5 parts of lecithin, 1-4 parts of plant essential oil and 2200 parts of water 1500-.

Further preferably, the waterproof layer comprises the following raw materials in parts by weight: 24 parts of methyl silicone oil, 20 parts of paraffin microemulsion, 3 parts of zein and 2 parts of emulsifier; the hydrophilic layer comprises the following raw materials in parts by weight: 60 parts of moisture-absorbing and sweat-releasing auxiliary agent, 20 parts of quick-drying auxiliary agent, 6 parts of pullulan, 4 parts of chitosan, 5 parts of chitin, 3 parts of lecithin, 3 parts of plant essential oil and 2000 parts of water.

Further, the weight ratio of the pullulan polysaccharide to the chitosan to the lecithin is 5-8:3-6: 3.

Preferably, the weight ratio of the pullulan to the chitosan to the lecithin is 6:4: 3.

Further, the weight ratio of the methyl silicone oil to the zein is 7-8: 1.

Preferably, the weight ratio of the methyl silicone oil to the zein is 8: 1.

Further, the plant essential oil comprises one or more of lavender oil, ginger oil, rosemary oil or lemon oil.

Further, the emulsifier is one or more of diacetyl tartaric acid monoglyceride, sodium stearoyl lactylate, calcium stearoyl lactylate, sucrose fatty ester and distilled monoglyceride.

The invention also provides a preparation method of the pure cotton one-way moisture-conducting non-woven fabric, which comprises the following steps:

(1) preparing hydrophilic moisture absorption non-woven fabric: mixing and uniformly stirring a moisture-absorbing and sweat-releasing auxiliary agent, a quick-drying auxiliary agent, pullulan, chitosan, chitin, lecithin, plant essential oil and water to obtain hydrophilic slurry, padding the pure cotton non-woven fabric into the hydrophilic slurry by adopting a padding method, and baking to obtain the hydrophilic non-woven fabric;

(2) unidirectional moisture-conducting printing: and (2) heating the paraffin micro-emulsion, adding methyl silicone oil, stirring, adding an emulsifier and zein, uniformly stirring to obtain a waterproof slurry, printing the waterproof slurry on the front surface of the hydrophilic non-woven fabric obtained in the step (1) by adopting rotary screen printing, and then baking to obtain the pure cotton one-way moisture-conducting non-woven fabric.

Further, the baking temperature in the step (1) and the step (2) is 170 ℃, and the baking time is 1-5 min.

Further, the padding allowance rate in the step (1) is 80-90%.

Further, in the step (2), the heating refers to heating to the temperature of 60-150 ℃, and the time for adding the methyl silicone oil and stirring is 0.5-1.5 h.

Compared with the prior art, the invention provides the pure cotton one-way moisture-conducting non-woven fabric applied to the paper diapers and the sanitary towels, and the pure cotton one-way moisture-conducting non-woven fabric has the following beneficial effects:

the pure cotton one-way moisture-conducting non-woven fabric is simple in preparation method, soft and comfortable in hand feeling, skin-friendly and hydrophilic, and free of irritation due to the fact that the pure cotton non-woven fabric is used as the hydrophilic layer, has a very excellent moisture absorption and dryness function, solves the problems that skin is red and itchy due to the chemical fiber non-woven fabric and the like, and simultaneously produces the pure cotton non-woven fabric which is compatible with both comfortableness and functionality and can meet the requirement of consumers on both comfortableness and functionality to the maximum extent due to the optimized design of the components and the content of the hydrophilic layer and the waterproof layer. The invention relates to a one-way moisture-conducting technology, which is characterized in that the front surface of a non-woven fabric on a hydrophilic layer is subjected to micro window finishing by a colorless printing method, and the one-way moisture-conducting technology is mainly characterized in that a waterproof auxiliary agent is applied to the front surface of the non-woven fabric to carry out colorless printing, a certain grid shape is printed and attached to the front surface of the non-woven fabric, moisture is diffused and permeated to the front surface of the non-woven fabric through a non-woven fabric moisture-conducting groove on the hydrophilic layer, meanwhile, the hydrophilic layer has strong moisture absorption and sweat storage capacity, and a waterproof area formed by a lat. The direct contact between the waterproof layer and the skin is avoided, so that the skin of a human body keeps dry and comfortable, and the waterproof layer is attached to the front surface of the non-woven fabric, so that the waterproof effect is better.

Drawings

FIG. 1 is a schematic structural view of a main view of a pure cotton one-way moisture-conducting nonwoven fabric applied to diapers and sanitary napkins;

fig. 2 is a schematic structural view of a pure cotton unidirectional moisture-transfer non-woven fabric applied to a paper diaper and a sanitary napkin in a bottom view.

In the figure: 1-a hydrophilic layer; 2-front side of non-woven fabric; 3-back of non-woven fabric; 4-waterproof layer; 5-non-woven fabric moisture-guiding groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In addition, the moisture absorption and sweat releasing assistant is the moisture absorption and sweat releasing assistant h-wa purchased from Zhuhai Haoyao chemical industry Co., Ltd, the quick-drying assistant 6138 purchased from Zhuhai Haoyao chemical industry Co., Ltd, and other raw materials are common commercial products, so the source of the moisture absorption and sweat releasing assistant is not particularly limited.

Basic embodiment

Referring to fig. 1-2, a pure cotton one-way moisture-conducting non-woven fabric applied to paper diapers and sanitary napkins comprises a hydrophilic layer 1, wherein the hydrophilic layer 1 is provided with a non-woven fabric front surface 2 and a non-woven fabric back surface 3, the non-woven fabric front surface 2 is a direct contact skin surface, and the non-woven fabric front surface 2 is respectively provided with a waterproof layer 4 and a non-woven fabric moisture-conducting groove 5.

The hydrophilic layer 1 utilizes its hydrophilic water transport principle to transport liquid on the front side 2 of the nonwoven to the back side 3 of the nonwoven. The waterproof layer 4 is in a polygonal grid shape (circular or regular hexagonal pattern), so that liquid entering the hydrophilic layer 1 through the non-woven fabric moisture-conducting grooves 5 cannot flow back to the waterproof layer 4, and the front surface 2 of the non-woven fabric keeps dry and comfortable. The waterproof layer 4 is attached to the front surface 2 of the non-woven fabric, and the non-woven fabric moisture-guiding grooves 5 are arranged between the waterproof layers 4. The hydrophilic layer 1 is made of pure cotton non-woven fabric.