Dry and anti-reverse-osmosis composite non-woven fabric

Abstract

A bonding layer is arranged between an anti-sticking non-woven fabric layer and a hot air hydrophilic cloth layer in a clamped mode, and the anti-sticking non-woven fabric layer comprises a surface layer and an anti-reverse-osmosis layer which are arranged from top to bottom. The surface layer and the reverse osmosis prevention layer are formed by combing one or two of polyester fibers and polypropylene fibers, and the polyester fibers and the polypropylene fibers are transversely and longitudinally combed on the anti-sticking non-woven fabric layer to form a plurality of air holes; the fiber density and the fiber type of the surface layer and the leakage-proof layer are changed, so that liquid can permeate from the surface layer to the hot air hydrophilic cloth layer in a one-way mode, and the hot air hydrophilic cloth layer attracts moisture on the end face of the other side of the anti-sticking non-woven fabric layer through the capillary action of hydrophilic fibers to penetrate through holes in a one-way mode to be attracted into the fiber layer of the hot air hydrophilic cloth layer; the surface layer is kept dry and comfortable, and meanwhile, a relatively good reverse osmosis prevention effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber products, in particular to a dry and anti-reverse osmosis composite non-woven fabric. Background Art

[0002] Non-woven fabric is a fabric that does not require spinning and weaving. It only orients or randomly arranges textile staple fibers or filaments to form a fiber web structure, and then reinforced by mechanical, thermal bonding or chemical methods. It is not made of yarns interlaced and knitted together one by one, but the fibers are directly bonded together by physical methods.

[0003] There are defects in the structure of existing non-woven fabrics. Most of the existing non-woven fabrics are composed of a single water-repellent fiber cloth or a single hydrophilic fiber cloth. Non-woven fabrics made of a single type of fiber can achieve better results in a certain performance of the corresponding fiber characteristics, but the other properties of the non-woven fabric will be relatively weakened. Therefore, a single-layer non-woven fabric can no longer meet people's growing demand for use;

[0004] The most commonly used non-woven fabrics are multi-layer composite non-woven fabrics, such as the composite non-woven fabric provided in the patent application document with publication number CN217863112U. The waterproof layer and the water-absorbing layer are provided to ensure the overall dryness of the non-woven base fabric layer and prevent the intrusion of moisture from inside and outside. However, the through holes provided inside the water-absorbing layer in this technical solution will facilitate the absorption of water to move to the surface layer through the through holes, that is, it is easy to reversely seep, making the surface layer wet and unable to maintain a dry touch, affecting the user's experience. Utility Model Content

[0005] In view of the technical defects existing in the background technology, the utility model proposes a dry and anti-reverse osmosis composite non-woven fabric, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0006] A dry and anti-reverse osmosis composite non-woven fabric comprises a non-woven fabric body, wherein the non-woven fabric body comprises an anti-adhesive non-woven fabric layer and a hot air hydrophilic fabric layer, wherein the anti-adhesive non-woven fabric layer and the hot air hydrophilic fabric layer are stacked up and down, an adhesive layer is sandwiched between the anti-adhesive non-woven fabric layer and the hot air hydrophilic fabric layer, and the adhesive layer is composed of a plurality of adhesive tapes coated on the end surface of the hot air hydrophilic fabric layer at equal intervals, the anti-adhesive non-woven fabric layer comprises a surface layer and an anti-reverse osmosis layer arranged from top to bottom, the surface layer and the anti-reverse osmosis layer are both formed by combing a combination of one or two of polyester fibers and polypropylene fibers, the fibers of the surface layer and the anti-reverse osmosis layer are both arranged in a staggered manner longitudinally and transversely, and the pore size of the surface layer formed by combing is larger than the pore size formed by combing the anti-reverse osmosis layer.

[0007] As an improvement of the above solution, an embossing layer is provided on the upper end surface of the anti-adhesive non-woven fabric layer, and the embossing position of the embossing layer corresponds to the bonding position of the bonding layer.

[0008] As an improvement of the above solution, the anti-adhesive nonwoven fabric layer is made of parallel bicomponent fibers composed of the polyester fibers and the polypropylene fibers, and the polyester fibers and the polypropylene fibers are combined to form parallel bicomponent fibers with a dumbbell-shaped cross-section.

[0009] As an improvement of the above solution, the basis weight of the anti-adhesive non-woven fabric layer is 5g-8g / ㎡, the basis weight of the hot air hydrophilic fabric layer is 15g-30g / ㎡, and the fiber fineness of the hot air hydrophilic fabric layer is 0.8d-2d.

[0010] As an improvement of the above solution, the anti-adhesive nonwoven fabric layer and the hot air hydrophilic fabric layer are bonded and compounded by PUR adhesive, and the adhesive layer is composed of a plurality of adhesive strips formed by scraping PUR adhesive at equal intervals along the end surface of the hot air hydrophilic fabric layer.

[0011] The utility model has the beneficial effects of: using polyester fibers and polypropylene fibers with lower gram weight to comb to form the anti-sticking non-woven fabric layer, combing the polyester fibers and polypropylene fibers horizontally and vertically to form a plurality of air permeable holes on the anti-sticking non-woven fabric layer, and changing the fiber density and fiber type of the surface layer and the anti-leakage layer so that liquid can easily penetrate unidirectionally from the surface layer toward the hot air hydrophilic fabric layer, the hot air hydrophilic fabric layer is attached to the anti-reverse osmosis layer, and the water on the other side end face of the anti-sticking non-woven fabric layer is guided to pass through the pores unidirectionally and be attracted into its own fiber layer through the capillary action of the hydrophilic fibers, thereby maintaining the dryness of the surface layer and achieving the technical effects of better anti-reverse osmosis and linting. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the adhesive layer distribution structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure in the thickness direction of the utility model.

[0014] Figure 3 It is a schematic cross-sectional view of the parallel bicomponent fiber of the utility model.

[0015] Among them: non-woven fabric body 1, anti-adhesive non-woven fabric layer 2, surface layer 201, anti-reverse osmosis layer 202, hot air hydrophilic fabric layer 3, adhesive layer 4, polyester fiber 5, polypropylene fiber 6. DETAILED DESCRIPTION

[0016] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0017] like Figure 1 and Figure 2 As shown, a dry and anti-reverse osmosis composite non-woven fabric comprises a non-woven fabric body 1, wherein the non-woven fabric body 1 comprises an anti-adhesive non-woven fabric layer 2 and a hot air hydrophilic fabric layer 3, wherein the anti-adhesive non-woven fabric layer 2 and the hot air hydrophilic fabric layer 3 are stacked up and down, and an adhesive layer 4 is sandwiched between the anti-adhesive non-woven fabric layer 2 and the hot air hydrophilic fabric layer 3, wherein the adhesive layer 4 is composed of a plurality of adhesive tapes equidistantly coated on the end surface of the hot air hydrophilic fabric layer 3, and the anti-adhesive non-woven fabric layer 2 comprises a surface layer 201 and an anti-reverse osmosis layer 202 arranged from top to bottom, wherein the surface layer 201 and the anti-reverse osmosis layer 202 are combed and formed by a combination of one or two of polyester fibers 5 and polypropylene fibers 6, and the fibers of the surface layer 201 and the anti-reverse osmosis layer 202 are arranged in an alternating manner in the longitudinal and transverse directions, and the pore size formed by combing the surface layer 201 is larger than the pore size formed by combing the anti-reverse osmosis layer 202.

[0018] In the first embodiment of the present invention, the anti-adhesive non-woven fabric layer 2 is composed of a surface layer 201 and an anti-reverse osmosis layer 202, the surface layer 201 is formed by combing the polyester fiber 5, the anti-reverse osmosis layer 202 is formed by combing the polypropylene fiber 6, the anti-reverse osmosis layer 202 and the hot air hydrophilic fabric layer 3 are bonded and fixed, the fiber density of the surface layer 201 is less than the fiber density of the anti-reverse osmosis layer 202, so the pore size formed by combing the surface layer 201 is larger than the pore size formed by combing the anti-reverse osmosis layer 202, and the polypropylene fiber 6 has better water repellency than the polyester fiber 5;

[0019] It should be noted that, in the first embodiment, when liquid penetrates, the moisture will be absorbed, guided and stored in the pores of the surface layer 201 with larger pores, the hot air hydrophilic cloth layer 3 and the anti-reverse osmosis layer 202 are attached to each other, and the hydrophilic fibers in the hot air hydrophilic cloth layer 3 guide the moisture in the polyester fiber 5 on the other side of the anti-reverse osmosis layer 202 through capillary action, attracting the moisture to pass through the pores in the polypropylene fiber 6 and being absorbed by the hot air hydrophilic cloth layer 3, while the moisture in the hot air hydrophilic cloth layer 3 cannot pass through the pores in the polypropylene fiber 6 to enter the surface layer 201. The non-woven fabric body under this structure has a better anti-reverse osmosis effect, can effectively keep the surface layer 201 dry, and prevent liquid reverse osmosis from affecting the comfort of use.

[0020] In the second embodiment of the present invention, the anti-adhesive non-woven fabric layer 2 is composed of a surface layer 201 and an anti-reverse osmosis layer 202, the surface layer 201 is formed by combing the polypropylene fiber 6, the anti-reverse osmosis layer 202 is formed by combing the polyester fiber 5, the anti-reverse osmosis layer 202 and the hot air hydrophilic fabric layer 3 are bonded and fixed, the fiber density of the surface layer 201 is greater than the fiber density of the anti-reverse osmosis layer 202, so the pore size formed by combing the surface layer 201 is smaller than the pore size formed by combing the anti-reverse osmosis layer 202, and the polypropylene fiber 6 has better water repellency than the polyester fiber 5;

[0021] It should be noted that, in the second embodiment, when the liquid penetrates from top to bottom, it penetrates into the polyester fiber 5 with larger porosity through the pores in the polypropylene fiber 6, the hot air hydrophilic cloth layer 3 and the anti-reverse osmosis layer 202 are bonded, and the hydrophilic fibers in the hot air hydrophilic cloth layer 3 directly absorb the moisture in the polyester fiber 5 and store it in their own fibers, keeping the polypropylene fiber 6 of the surface layer 201 in a dry state. When the liquid reverses upward, the pores between the hydrophilic fibers and the polyester fiber 5 play a interception role, and the moisture cannot pass through the pores of the polypropylene fiber 6 in the surface layer 201 without guidance. The non-woven fabric body under this structure has a good anti-reverse osmosis effect, and the fiber density of the surface layer 201 is greater than the fiber density of the anti-reverse osmosis layer 202, which makes the surface layer 201 feel smoother and drier, effectively preventing liquid reverse osmosis from affecting the comfort of use.

[0022] like Figure 3 As shown, in the third embodiment of the present utility model, the anti-adhesive non-woven fabric layer 2 is composed of a surface layer 201 and an anti-reverse osmosis layer 202, the surface layer 201 and the anti-reverse osmosis layer 202 are formed by combing parallel bicomponent fibers, the parallel bicomponent fibers are composed of polyester fibers 5 and polypropylene fibers 6, the anti-reverse osmosis layer 202 and the hot air hydrophilic fabric layer 3 are bonded and fixed, the pore size of the surface layer 201 and the anti-reverse osmosis layer 202 is reduced by increasing the fiber density of the anti-adhesive non-woven fabric layer 2, and the polypropylene fibers 6 have better water repellency than the polyester fibers 5;

[0023] It should be noted that, in the third embodiment, when the liquid penetrates from top to bottom, when passing through the anti-sticking non-woven fabric layer 2, the hydrophilic fibers in the hot air hydrophilic fabric layer 3 attract moisture through the pores of the parallel two-component fibers through capillary action, and penetrate into the hot air hydrophilic fabric layer 3, thereby keeping the surface of the anti-sticking non-woven fabric layer 2 smooth and dry. When the liquid reverses upward, the polypropylene fibers 6 in the anti-sticking non-woven fabric have a water-repellent effect on the liquid. In the absence of the attraction of the water-collecting county committee on the other side, moisture cannot pass through the fiber pores in the anti-sticking non-woven fabric, and has a good anti-reverse osmosis effect.

[0024] As an improvement of the above scheme, the upper end surface of the anti-adhesive non-woven fabric layer 2 is provided with an embossing layer, and the embossing position of the embossing layer corresponds to the bonding position of the adhesive layer 4. The anti-adhesive non-woven fabric layer 2 and the hot air hydrophilic fabric layer 3 are bonded and compounded by PUR glue, and have a good curing effect after contact with air. The double-layer material is not prone to delamination during subsequent processing, punching and embossing. The adhesive layer 4 is composed of a number of adhesive tapes formed by scraping PUR glue at equal intervals along the end surface of the hot air hydrophilic fabric layer 3.

[0025] As an improvement of the above solution, the anti-adhesive nonwoven fabric layer 2 is made of parallel bicomponent fibers composed of the polyester fibers 5 and the polypropylene fibers 6, and the polyester fibers 5 and the polypropylene fibers 6 are combined to form parallel bicomponent fibers with a dumbbell-shaped cross-section.

[0026] As an improvement of the above solution, the basis weight of the anti-adhesive non-woven fabric layer 2 is 5g-8g / ㎡, the basis weight of the hot air hydrophilic fabric layer 3 is 15g-30g / ㎡, and the fiber fineness of the hot air hydrophilic fabric layer 3 is 0.8d-2d.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A dry and anti-reverse osmosis composite nonwoven fabric, characterized in that: The invention comprises a non-woven fabric body (1), wherein the non-woven fabric body (1) comprises an anti-adhesive non-woven fabric layer (2) and a hot air hydrophilic fabric layer (3), wherein the anti-adhesive non-woven fabric layer (2) and the hot air hydrophilic fabric layer (3) are stacked up and down, and an adhesive layer (4) is sandwiched between the anti-adhesive non-woven fabric layer (2) and the hot air hydrophilic fabric layer (3), wherein the adhesive layer (4) is composed of a plurality of adhesive tapes coated at equal intervals on the end surface of the hot air hydrophilic fabric layer (3), and the anti-adhesive non-woven fabric layer (2) comprises A surface layer (201) and an anti-reverse osmosis layer (202) are arranged from top to bottom, and the surface layer (201) and the anti-reverse osmosis layer (202) are both formed by combing one or a combination of two of polyester fibers (5) and polypropylene fibers (6), and the fibers of the surface layer (201) and the anti-reverse osmosis layer (202) are arranged in a staggered manner in the longitudinal and transverse directions, and the pore size of the surface layer (201) formed by combing is larger than the pore size of the anti-reverse osmosis layer (202) formed by combing.

2. The dry and anti-reverse osmosis composite nonwoven fabric according to claim 1, characterized in that: An embossed layer is provided on the upper end surface of the anti-adhesive non-woven fabric layer (2), and the embossed position of the embossed layer corresponds to the bonding position of the bonding layer (4).

3. The dry and anti-reverse osmosis composite nonwoven fabric according to claim 1, characterized in that: The basis weight of the anti-adhesive non-woven fabric layer (2) is 5g-8g / m2, the basis weight of the hot air hydrophilic fabric layer (3) is 15g-30g / m2, and the fiber fineness of the hot air hydrophilic fabric layer (3) is 0.8d-2d.

4. The dry and anti-reverse osmosis composite nonwoven fabric according to claim 1, characterized in that: The anti-adhesive non-woven fabric layer (2) and the hot air hydrophilic fabric layer (3) are bonded and compounded by PUR adhesive, and the adhesive layer (4) is composed of a plurality of adhesive strips formed by scraping PUR adhesive at equal intervals along the end surface of the hot air hydrophilic fabric layer (3).

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