阅读说明：本技术 一种吸收芯体、包含它的卫生巾及其生产机构 (Absorption core, sanitary towel comprising same and production mechanism thereof ) 是由 侯冬梅 葛宏伟 于 2020-08-25 设计创作，主要内容包括：本发明公开了一种吸收芯体、包含它的卫生巾及其生产机构,本发明的吸收芯体,包括若干层纤维条,相邻的纤维条间设置有多个吸水树脂,纤维条由异形截面纤维丝和圆形截面纤维丝梳理而成,异形截面纤维丝与圆形截面纤维丝间形成供液体渗透的纤维空隙通道。本发明的卫生巾包含吸收芯体。本发明的生产机构包括梳理机,梳理机的出料口设置有牵引装置,梳理机一侧设置有将牵引装置折叠的纤维网进行压制的挤压装置,梳理机的出料口与牵引装置之间还设置有可控制投放量的用于投放吸水树脂的投放装置。本发明的吸收芯体吸水特性好,并简化了加工环节,便于吸收芯体加工。(The invention discloses an absorption core, a sanitary towel containing the same and a production mechanism thereof. The sanitary napkin of the present invention comprises an absorbent core. The production mechanism comprises a carding machine, a discharge port of the carding machine is provided with a traction device, one side of the carding machine is provided with an extrusion device for pressing a fiber web folded by the traction device, and a feeding device capable of controlling feeding amount and used for feeding water-absorbent resin is arranged between the discharge port of the carding machine and the traction device. The absorption core body has good water absorption characteristic, simplifies the processing link and is convenient to process.)

1. An absorbent core characterized by: the fiber band is formed by carding profiled cross-section fiber yarns and round cross-section fiber yarns, and fiber gap channels for liquid permeation are formed between the profiled cross-section fiber yarns and the round cross-section fiber yarns.

2. An absorbent core according to claim 1, characterized in that: the profiled cross-section fiber filaments are one or more of trilobal, multilobal and cross-shaped cross-section fibers.

3. An absorbent core according to claim 1, characterized in that: the number ratio of the profiled cross-section fiber yarns to the round cross-section fiber yarns is 5:5-1: 9.

4. An absorbent core according to claim 1, characterized in that: the fiber strips are formed by folding and pressing a fiber net.

5. A sanitary napkin characterized by: the absorbent core body of claim 1 or 2 or 3 or 4, further comprising a non-woven fabric arranged above the absorbent core body, and a PE (polyethylene) base film and release paper which are sequentially arranged below the absorbent core body, wherein the edges of the non-woven fabric and the PE base film are attached to form a compression seal.

6. A sanitary napkin as claimed in claim 5, wherein: the thickness of the absorption core body is 1mm-6 mm.

7. An absorbent core production mechanism for producing an absorbent core according to any one of claims 1 to 4, characterized in that: the device comprises a carding machine, wherein a discharge port of the carding machine is provided with a traction device, one side of the carding machine is provided with an extrusion device for pressing a fiber web folded by the traction device, a feeding device for feeding water-absorbent resin is further arranged between the discharge port of the carding machine and the traction device, and the feeding device comprises a hopper fixed above the discharge port of the carding machine and a feeding assembly arranged below the hopper and used for controlling feeding speed.

8. The absorbent core production mechanism of claim 7, wherein: the unloading subassembly includes the conveyer pipe that the level was placed, the top of conveyer pipe is provided with the communicating feed inlet with the hopper, the conveyer pipe internal rotation is connected with ejection of compact hob, ejection of compact hob one end is run through the conveyer pipe and is consolidated there is its rotatory driving motor of drive, the feed opening has been seted up to diapire one side of conveyer pipe, the feed opening is located the fibre web of carding machine output directly over.

9. The absorbent core production mechanism of claim 7, wherein: draw gear includes the subassembly that draws that two symmetries set up, two draw and form the clearance that supplies the fibre web to pass through between the subassembly, the clearance is less than the fibre web width, draw the subassembly and include the three gyro wheel that becomes the triangle setting, the gyro wheel overcoat is equipped with traction belt, one the gyro wheel rotates under the driving piece drive.

10. The absorbent core production mechanism of claim 7, wherein: the carding machine is characterized by further comprising a material receiving device arranged on one side, far away from the carding machine, of the extruding device, wherein the material receiving device comprises a rack, a placing barrel is arranged in the rack, the placing barrel rotates under the driving of a rotating motor, and a guide wheel for the fiber strips to pass through is arranged on the rack.

Technical Field

The invention relates to the technical field of sanitary products, in particular to an absorption core body, a sanitary towel comprising the absorption core body and a production mechanism of the sanitary towel.

Background

The super absorbent resin SAP not only has strong hydrophilic groups such as hydroxyl and carboxyl, but also has a three-dimensional grid structure with a certain degree of crosslinking, can bear the excellent functions of absorbing water and retaining water, is difficult to separate the absorbed water even if being pressurized once being expanded into gel, is nontoxic and harmless, and is widely applied to various fields. At present, most sanitary towels, paper diapers and the like on the market contain super absorbent resin SAP, and the application requirements of consumers in the aspect of sanitary products are met.

But present super absorbent resin SAP only has powder or graininess, still can't make the fibrous state that makes things convenient for the producer to use because the technical bottleneck, lead to using powder or graininess super absorbent resin SAP to have a lot of production and use drawbacks, super absorbent resin SAP after the absorption becomes the gel-like, agglomerate more easily, the risk of revealing still takes place easily in the use, because in the use because the action of gravity after super absorbent resin SAP absorbs water, the performance that reflects in the product is exactly that the product appears a heap phenomenon, not only influenced pleasing to the eye, and reduce the use sense of product and the experience sense of consumption more easily. To reduce this phenomenon, manufacturers began to add personal hygiene products with SAP composite layers made of paper as integral chips, such as: composite chips of fluff pulp and SAP and paper, composite chips of SAP and paper, and the like have been disclosed in chinese patent application nos. 201721711620.1 and 200920003793.7. The structure that sanitary towel generally adopted at present is from type paper + hot melt adhesive + PE ventilated membrane + paper SAP composite bed + water conservancy diversion layer non-woven fabrics + the non-woven fabrics that punches, however the nature of paper itself has decided paper just easily to break and disperse after absorbing water and has come, can not solve the appearance of leading to the problem fundamentally yet.

Disclosure of Invention

To overcome the above-mentioned drawbacks, it is an object of the present invention to provide an absorbent core, a sanitary napkin comprising the same, and a mechanism for producing the same. The absorbing core body of the invention adopts the soft and high water absorption fiber yarns with different cross sections and normal circular cross sections with the capacities of fast liquid diffusion and fast expansion to carry out excellent compounding, so that the internal void space is larger, the water absorption resin powder or particles can be uniformly dispersed in the internal range of the carded fiber strips, fiber void passages for liquid permeation are formed between the fibers with the special cross sections and the fibers with the circular cross sections, and the absorbing core body has good water absorption effect. The sanitary towel adopting the absorption core body also has good water absorption and is not easy to reverse osmosis. Utilize this to use neotype production mechanism, add the input device in the discharge gate department of carding machine, with the even and quantitative dispersion of water absorbent resin's powder or granule in the inside within range of the fibre net that has combed, the rethread draw gear and the extrusion device who adds carry out the uniform pressing, made the cotton area that has better longitudinal strength and suitable transverse strength of suitable width. Not only can simplify the production equipment of the sanitary articles, but also can improve the production efficiency.

An object of the present invention is to provide an absorbent core, characterized in that: the fiber band is formed by carding profiled cross-section fiber yarns and round cross-section fiber yarns, and fiber gap channels for liquid permeation are formed between the profiled cross-section fiber yarns and the round cross-section fiber yarns.

The absorption core body adopts the different cross section of having chooseed for use soft and high water absorption while liquid fast diffusion and quick expansion ability and the cellosilk of normal circular cross section to carry out good complex for inside void space is bigger, and water-absorbent resin is powder or graininess, but the homodisperse is in the fibre strip internal range that has combed, forms the fibrous space passageway that supplies liquid infiltration between dysmorphism cross section fibre and circular cross section fibre, and the absorption core body absorbs water effectually.

Furthermore, the profiled cross-section fiber yarns are one or more of trilobal, multi-lobal, cross-shaped and Y-shaped cross-section fibers, so that fiber gap channels are convenient to realize.

Further, the number ratio of the profiled cross-section fiber yarns to the round cross-section fiber yarns is 5:5-1:9, and the optimal ratio is 5: 5.

Furthermore, the fiber strips are formed by folding and pressing a fiber net in a plurality of layers, so that the operation is convenient.

Another object of the present invention is to provide a sanitary napkin, comprising: the absorption core body comprises a non-woven fabric arranged above the absorption core body, and a PE bottom membrane and release paper which are sequentially arranged below the absorption core body, wherein the edges of the non-woven fabric and the PE bottom membrane are attached to form extrusion sealing, a plurality of air holes are formed in the non-woven fabric, and the PE bottom membrane and the release paper are bonded together through hot melt adhesive.

Furthermore, the thickness of the absorption core body is 1mm-6mm, the thickness is suitable, the absorption core body is light and thin, and the water absorption effect is good.

Another object of the present invention is to provide an absorbent core production mechanism for producing the absorbent core, which is one of the objects of the present invention, characterized in that: the device comprises a carding machine, wherein a discharge port of the carding machine is provided with a traction device, one side of the carding machine is provided with an extrusion device for pressing a fiber web folded by the traction device, a feeding device for feeding water-absorbent resin is further arranged between the discharge port of the carding machine and the traction device, and the feeding device comprises a hopper fixed above the discharge port of the carding machine and a feeding assembly arranged below the hopper and used for controlling feeding speed.

The cotton belt is characterized in that a feeding device is additionally arranged at a discharge port of a carding machine, powder or particles of water-absorbent resin are uniformly and quantitatively dispersed in the inner range of a carded fiber net, and then are uniformly pressed through an additionally arranged traction device and an extrusion device, so that the cotton belt with proper width, good longitudinal strength and proper transverse strength is manufactured. Not only can simplify the production equipment of the sanitary articles, but also can improve the production efficiency.

Further, the unloading subassembly is including saying the conveyer pipe that the level was placed, the top of conveyer pipe is provided with the communicating feed inlet with the hopper, the conveyer pipe internal rotation is connected with ejection of compact hob, ejection of compact hob one end is run through the conveyer pipe and is consolidated there is its rotatory driving motor of drive, the feed opening has been seted up to diapire one side of conveyer pipe, the feed opening is located the fibre web of the discharge gate output of carding machine directly over. The putting speed of the water-absorbent resin is controlled by controlling the rotating speed of the driving motor, and the water-absorbent resin is put on the fiber web carded by the carding machine, wherein the putting speed of the water-absorbent resin is 5.0g/min-50 g/min.

Further, draw gear includes the subassembly that draws that two symmetries set up, two draw and form the clearance that supplies the fibre web to pass through between the subassembly, the clearance is less than the fibre web width, draw the subassembly and include three gyro wheel that become the triangle setting, the gyro wheel overcoat is equipped with traction belt, one the gyro wheel rotates under the driving of driving piece. The fiber web carded by the carding machine is folded into a plurality of layers of fiber strips after passing through the traction device.

Further, the extrusion device comprises a first compression roller and a second compression roller, the distance between the upper second compression rollers is adjustable, the distance between the upper second compression rollers is smaller than the gap, and the extrusion device extrudes the multilayer fiber strips into cotton belts with proper width and good longitudinal strength and proper transverse strength.

The receiving device comprises a rack, a placing barrel is arranged in the rack, the placing barrel rotates under the driving of a rotating motor, and a guide wheel for the fiber strips to pass through is arranged on the rack. The produced cotton belts are sequentially wound in the placing barrel, so that the sanitary towel is convenient for sanitary towel manufacturers to operate and use.

Drawings

FIG. 1 is a schematic view showing a cross-sectional microscopic state in example 1 of the present invention;

FIG. 2 is a schematic view showing a cross-sectional microscopic state of a shaped cross-section filament in example 1 of the present invention;

FIG. 3 is a sectional view of example 2 of the present invention;

FIG. 4 is a schematic structural diagram of embodiment 3 of the present invention;

FIG. 5 is a top view of example 3 of the present invention;

fig. 6 is a schematic structural view of a blanking assembly in embodiment 3 of the present invention.

In the figure:

1-water-absorbing resin, 2-profiled section cellosilk, 3-round section cellosilk, 41-absorbing core, 42-PE base membrane, 43-release paper, 44-non-woven fabric, 5-carding machine, 6-traction device, 61-roller, 62-traction belt, 7-extrusion device, 8-feeding device, 81-hopper, 82-blanking assembly, 821-conveying pipe, 822-discharging screw rod, 823-driving motor, 824-blanking port, 9-material receiving device, 91-rack, 92-placing barrel, 93-rotating motor and 94-guide wheel.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.