CN213353784U

CN213353784U - Water-repellent whitening type spun-bonded non-woven fabric

Info

Publication number: CN213353784U
Application number: CN202021777806.9U
Authority: CN
Inventors: 杨步洋
Original assignee: Beizisuo Changzhou Technology Development Co ltd
Current assignee: Beizisuo Changzhou Technology Development Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-06-04
Anticipated expiration: 2030-08-21

Abstract

The application relates to a refuse whitening type spunbonded nonwoven, it includes the tensile layer, the both sides surface on tensile layer has all bonded the whitening layer, the both sides surface on the tensile layer of whitening layer dorsad has all bonded the water repellent layer, every the water repellent layer is made by Dry-Tec waterproof ventilated membrane. The water repellent layer is arranged, so that the water repellency of the spun-bonded non-woven fabric can be improved; the whiteness of the spun-bonded non-woven fabric is improved by arranging the whitening layer; the tensile layer is arranged, so that the tensile strength of the spun-bonded non-woven fabric is increased. Therefore, the spun-bonded non-woven fabric has the characteristics of water repellency, whitening and stretch resistance.

Description

Water-repellent whitening type spun-bonded non-woven fabric

Technical Field

The application relates to the technical field of spun-bonded non-woven fabric manufacturing, in particular to a water-repellent whitening spun-bonded non-woven fabric.

Background

The spun-bonded non-woven fabric is a non-woven fabric which is formed by directly processing fibers into a net through air flow or machinery by utilizing high polymer slices, short fibers or filaments, then carrying out spunlace, needle punching or hot rolling reinforcement, and finally finishing. The spun-bonded non-woven fabric is a novel fiber product with the characteristics of softness, air permeability and the like, has the advantages of no generation of fiber scraps, toughness, durability, silky softness, cotton feeling and low manufacturing cost, and is also a reinforcing material.

Medical cloth is usually made of spun-bonded non-woven fabric materials, but common spun-bonded non-woven fabrics are poor in waterproof performance, bacteria are easy to breed after the medical cloth is permeable to water, and health hidden dangers exist.

SUMMERY OF THE UTILITY MODEL

In order to enhance the water-repellent performance of the spunbonded nonwoven fabric, the application provides the water-repellent whitening spunbonded nonwoven fabric.

The application provides a it whitens type spunbonded nonwoven adopts following technical scheme to refuse:

the utility model provides a refuse water whitening type spunbonded nonwoven, includes the tensile layer, the both sides surface on tensile layer has all bonded the whitening layer, the both sides surface that the whitening layer dorsad tensile layer has all bonded the water repellent layer, every the water repellent layer is made by Dry-Tec waterproof ventilated membrane.

Through adopting above-mentioned technical scheme, the Dry-Tec waterproof ventilated membrane has good waterproof gas permeability, has strengthened the water repellency of spunbonded nonwoven to reduce spunbonded nonwoven and breed the probability of bacterium because of intaking, and then be favorable to avoiding producing healthy hidden danger.

Preferably, the tensile layer comprises a transverse tensile layer, the surface of the transverse tensile layer, which faces the water repellent layer, is bonded with the surface of the whitening layer, which is far away from the water repellent layer, and the transverse tensile layer is formed by sequentially bonding aramid fibers.

Through adopting above-mentioned technical scheme, utilize the horizontal tensile layer that aramid fiber made, because aramid fiber has the superhigh strength, its intensity is 5 ~ 6 times of steel wire, and the modulus is 2 ~ 3 times of steel wire or glass fiber, and toughness is 2 times of steel wire to strengthened the tensile strength of Dry-Tec waterproof ventilated membrane on horizontal, and then reduced the probability that Dry-Tec waterproof ventilated membrane was torn on horizontal.

Preferably, the tensile layer still includes the vertical tensile layer with horizontal tensile layer parallel arrangement, vertical tensile layer is bonded in proper order by the soybean fibre and forms, the fibrous length direction of soybean is on a parallel with the length direction on horizontal tensile layer and perpendicular with aramid fiber's length direction.

Through adopting above-mentioned technical scheme, utilize the vertical tensile layer that soybean fibre made, because tensile strength is high to the tensile strength of Dry-Tec waterproof ventilated membrane in vertical has been strengthened, and then has reduced the probability that Dry-Tec waterproof ventilated membrane is torn in vertical.

Preferably, an impact resistant layer made of a tough material is further bonded between the transverse tensile layer and the longitudinal tensile layer.

Through adopting above-mentioned technical scheme, through setting up the impact resistance layer, the impact resistance layer has toughness, has reduced the probability that spunbonded nonwoven is impaled by the puncture.

Preferably, the impact-resistant layer is formed by warp and weft weaving of polyester fibers and polyamide fibers.

By adopting the technical scheme, the impact strength of the polyester fiber is 4 times higher than that of nylon and 20 times higher than that of viscose fiber, and the polyester fiber has higher strength and elastic recovery capability; the strength of the polyamide fiber is 1-2 times higher than that of cotton, 4-5 times higher than that of wool, and 3 times higher than that of viscose fiber; the impact-resistant layer formed by warp and weft weaving of the polyester fibers and the polyamide fibers has excellent toughness, so that the possibility that the spun-bonded non-woven fabric is pierced is reduced.

Preferably, the circumferential side surfaces of the aramid fiber and the soybean fiber are respectively coated with a PU coating.

By adopting the technical scheme, the PU coating has excellent waterproof performance, and when the Dry-Tec waterproof breathable film is broken, the PU coating can further carry out water repellent protection on the spun-bonded non-woven fabric.

Preferably, the whitening layer is formed by weaving white cotton fibers in a warp-weft mode, and the peripheral side surfaces of the cotton fibers are coated with fluorescent whitening agents.

By adopting the technical scheme, the whiteness of the spun-bonded non-woven fabric can be improved by matching the white cotton fiber with the fluorescent whitening agent.

Preferably, the side of the water repellent layer, which faces away from the tensile layer, is bonded with a nano silver fiber coating.

By adopting the technical scheme, the mechanism of the metal silver sterilization is to block the physiological process of bacteria. In warm and humid environment, silver ions have very high biological activity, which means that silver ions are very easily combined with other substances to solidify proteins inside and outside the bacterial membrane, thereby blocking the respiratory and reproductive processes of bacteria. The warmer and more humid the environment, the more active the silver ions. Silver fibers were tested to resist 99.9% of bacteria exposed to the surface of the material within 1 hour. Most other antimicrobial products have not been tested for 48 hours to achieve the same results. Therefore, the nano silver fiber coating is arranged, so that the antibacterial effect of the spun-bonded non-woven fabric is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

the Dry-Tec waterproof breathable film has excellent waterproof and breathable properties, and enhances the water repellency of the spunbonded non-woven fabric, so that the probability of bacteria breeding caused by water inflow of the spunbonded non-woven fabric is reduced, and the health hidden danger is avoided;

2. the impact strength of the polyester fiber is 4 times higher than that of nylon and 20 times higher than that of viscose fiber, and the polyester fiber has higher strength and elastic recovery capability; the strength of the polyamide fiber is 1-2 times higher than that of cotton, 4-5 times higher than that of wool, and 3 times higher than that of viscose fiber; the impact-resistant layer formed by warp and weft weaving of the polyester fibers and the polyamide fibers has excellent toughness, so that the probability of the penetration of the spun-bonded non-woven fabric is reduced;

the PU coating has excellent waterproof performance, and when the Dry-Tec waterproof breathable film is broken, the PU coating can further perform water repellent protection on the spun-bonded non-woven fabric.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of cotton fibers and fluorescent whitening agents in the examples of the present application.

Fig. 3 is a schematic structural diagram of a transverse tensile layer in an embodiment of the present application.

FIG. 4 is a schematic structural diagram of an impact resistant layer in an embodiment of the present application.

Fig. 5 is a schematic structural view of a longitudinal tensile layer in an embodiment of the present application.

Fig. 6 is a schematic structural diagram of aramid fibers and a PU coating according to an embodiment of the present application.

Fig. 7 is a schematic structural view of soybean fibers and a PU coating in an example of the present application.

Description of reference numerals: 1. a water repellent layer; 2. A whitening layer; 21. cotton fibers; 22. a fluorescent whitening agent; 3. a tensile layer; 31. a transverse tensile layer; 311. aramid fibers; 32. an impact resistant layer; 321. polyester fiber; 322. polyamide fibers; 33. a longitudinal tensile layer; 331. soybean fibers; 34. a PU coating; 4. and (3) coating the nano silver fiber.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a water repellent whitening type spunbonded nonwoven fabric. Referring to fig. 1, the water-repellent whitening type spunbonded nonwoven fabric comprises a tensile layer 3, a whitening layer 2, a water-repellent layer 1 and a nano silver fiber coating layer 4 which are sequentially bonded from inside to outside. The tensile layer 3 comprises a transverse tensile layer 31, an impact resistant layer 32 and a longitudinal tensile layer 33 which are sequentially bonded from top to bottom.

Referring to fig. 1, the nano silver fiber coating 4 is formed by two layers, and is respectively adhered to the surface of the water repellent layer 1 on the side far away from the tensile layer 3. The mechanism of metallic silver sterilization is to block the physiological process of bacteria. In warm and humid environment, silver ions have very high biological activity, which means that silver ions are very easily combined with other substances to solidify proteins inside and outside the bacterial membrane, thereby blocking the respiratory and reproductive processes of bacteria. The warmer and more humid the environment, the more active the silver ions. The nanosilver fibers were tested to resist 99.9% of the bacteria exposed to the surface of the material within 1 hour. Most other antimicrobial products have not been tested for 48 hours to achieve the same results. Through setting up nanometer silver fibre coating 4, can reduce the probability that the bacterium got into the spun-bonded non-woven fabrics inside.

Referring to fig. 1, the water-repellent layer 1 is provided with two layers, the surface of the side, far away from the nano silver fiber coating 4, of each water-repellent layer 1 is bonded to the surface of the side, far away from the tensile layer 3, of the whitening layer 2, the water-repellent layer 1 is made of Dry-Tec waterproof breathable films, and the Dry-Tec waterproof breathable films have excellent waterproof and breathable properties, so that the water repellency of the spun-bonded non-woven fabric is enhanced.

Referring to fig. 1 and 2, the whitening layer 2 is provided with two layers, the surface of one side of each whitening layer 2, which is far away from the water repellent layer 1, is bonded to the surfaces of two sides, which are far away from the tensile layer 3, the whitening layer 2 is formed by weaving white cotton fibers 21 in a warp-weft manner, and the surface of the peripheral side of each cotton fiber 21 is coated with a fluorescent whitening agent 22. The white cotton fiber 21 has good affinity for dyes and is easily dyed, so that the fluorescent whitening agent 22 is not easily detached from the surface of the cotton fiber 21. The optical brightener 22 is a fluorescent dye, otherwise known as a white dye, and is also a complex organic compound. The characteristics of the fluorescent spun-bonded non-woven fabric are that the fluorescent spun-bonded non-woven fabric can excite incident light to generate fluorescence, so that dyed materials obtain a sparkling effect similar to fluorite, and the materials seen by naked eyes are very white, so that the whiteness of the spun-bonded non-woven fabric is enhanced.

Referring to fig. 3, the transverse tensile layer 31 is formed by sequentially bonding aramid fibers 311. Aramid fiber 311 is a novel high-tech synthetic fiber, has super high strength, high modulus and high temperature resistance, acid and alkali resistance, light weight, insulation, ageing resistance and good performance with long life cycle, and its strength is 5 ~ 6 times of steel wire, and the modulus is 2 ~ 3 times of steel wire or glass fiber, and toughness is 2 times of steel wire, and weight is only about 1/5 of steel wire. Through the arrangement of the transverse tensile layer 31, when the spun-bonded non-woven fabric is subjected to transverse force, the deformation degree of the Dry-Tec waterproof breathable film in the transverse direction is limited under the action of the aramid fiber 311, so that the Dry-Tec waterproof breathable film is not easy to tear in the transverse direction.

Referring to fig. 4, the impact resistance layer 32 is formed by warp and weft knitting of polyester fibers 321 and polyamide fibers 322. The polyester fiber 321 has high strength, and the impact strength of the polyester fiber is 4 times higher than that of the polyamide fiber and 20 times higher than that of the viscose fiber; and the elasticity of the elastic wool is good and is close to that of wool, and the elastic wool can be almost completely recovered when the elastic wool is stretched by 5 to 6 percent. The wrinkle resistance is superior to other fibers, i.e. the fabric is not wrinkled and has good dimensional stability. The elastic modulus is 22-141 cN/dtex, which is 2-3 times higher than nylon, so it has good strength and elastic recovery ability; the polyamide fiber 322 is mainly used for synthetic fiber, the most outstanding advantage is that the wear resistance is higher than all other fibers, 10 times higher than that of cotton and 20 times higher than that of wool, and the wear resistance can be greatly improved by slightly adding some polyamide fiber 322 in the blended fabric; when the stretch is extended to 3-6%, the elastic recovery rate can reach 100%; can withstand ten thousand times of bending without breaking. The strength of the fiber is 1-2 times higher than that of cotton, 4-5 times higher than that of wool, and 3 times higher than that of viscose fiber. Therefore, the impact-resistant layer 32 formed by warp and weft knitting of the polyester fibers 321 and the polyamide fibers 322 has good toughness, thereby reducing the possibility of the spunbonded nonwoven fabric being punctured.

Referring to fig. 5, the longitudinal tensile layer 33 is formed by sequentially bonding the soybean fibers 331, and the longitudinal direction of the soybean fibers 331 is parallel to the longitudinal direction of the transverse tensile layer 31 and perpendicular to the longitudinal direction of the aramid fibers 311. The soybean fiber 331 has cashmere-like soft hand feeling, silk-like soft gloss, superior warmth retention property to cotton and excellent skin-friendly property, and is known as 'healthy and comfortable fiber' in the new century and 'good fabric liked by skin'. Fine fineness, light specific gravity, high tensile strength, strong acid and alkali resistance and good moisture absorption and conductivity. By arranging the longitudinal tensile layer 33, when the spunbonded nonwoven fabric is subjected to longitudinal force, the deformation degree of the Dry-Tec waterproof breathable film in the longitudinal direction is limited under the action of the soybean fibers 331, so that the Dry-Tec waterproof breathable film is not easy to tear in the longitudinal direction.

Referring to fig. 6 and 7, the circumferential side surfaces of the aramid fibers 311 and the soybean fibers 331 are each covered with the PU coating 34. PU generally refers to polyurethane materials, which are short for polyurethane, are high molecular materials and have good waterproof performance. The PU coating 34 is capable of secondary waterproofing when the Dry-Tec waterproof breathable film is ruptured.

The implementation principle of the water-repellent whitening type spun-bonded non-woven fabric provided by the embodiment of the application is as follows: the Dry-Tec waterproof breathable film has excellent waterproof and breathable performance, and can block water on the surface of the spun-bonded non-woven fabric, so that the interior of the spun-bonded non-woven fabric is kept Dry, the water repellency of the spun-bonded non-woven fabric is enhanced, and the probability that bacteria enter the interior of the spun-bonded non-woven fabric along with water is effectively reduced; the nano silver fiber coating 4 is made of nano silver fibers, and the silver fibers have excellent antibacterial performance, so that the antibacterial effect of the spun-bonded non-woven fabric is further enhanced; the whiteness of the spun-bonded non-woven fabric is enhanced by the matching of the cotton fiber 21 and the fluorescent whitening agent 22; under the combined action of the transverse tensile layer 31, the impact resistant layer 32 and the longitudinal tensile layer 33, the Dry-Tec waterproof breathable film can be protected from multiple directions, so that the Dry-Tec waterproof breathable film is prevented from cracking; secondly, by providing the PU coating 34, the PU coating 34 has good waterproof performance, and when the Dry-Tec waterproof breathable film is broken, the PU coating 34 can be secondarily waterproof.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A water-repellent whitening type spun-bonded nonwoven fabric is characterized in that: including tensile layer (3), the both sides surface of tensile layer (3) has all bonded whitening layer (2), whitening layer (2) all bonds water repellent layer (1) to the both sides surface of tensile layer (3) dorsad, every water repellent layer (1) is made by Dry-Tec waterproof ventilated membrane.

2. The water-repellent whitened spunbond nonwoven fabric according to claim 1, characterized in that: tensile layer (3) are including horizontal tensile layer (31), go up on horizontal tensile layer (31) towards the surface of water repellent layer (1) and the surface bonding of keeping away from water repellent layer (1) on whitening layer (2), horizontal tensile layer (31) are bonded in proper order by aramid fiber (311) and are formed.

3. The water-repellent whitened spunbond nonwoven fabric according to claim 2, characterized in that: tensile layer (3) still include with horizontal tensile layer (31) parallel arrangement's vertical tensile layer (33), vertical tensile layer (33) are bonded in proper order by soybean fibre (331) and are formed, the length direction of soybean fibre (331) is on a parallel with the length direction of horizontal tensile layer (31) and is perpendicular with the length direction of aramid fiber (311).

4. A water-repellent and whitening spunbonded nonwoven fabric according to claim 3, which is characterized in that: an impact resistant layer (32) made of a tough material is further bonded between the transverse tensile layer (31) and the longitudinal tensile layer (33).

5. The water-repellent whitened spunbond nonwoven fabric according to claim 4, characterized in that: the anti-impact layer (32) is formed by warp and weft weaving of polyester fibers (321) and polyamide fibers (322).

6. The water-repellent whitened spunbond nonwoven fabric according to claim 2, characterized in that: the peripheral side surfaces of the aramid fiber (311) and the soybean fiber (331) are coated with PU coatings (34).

7. The water-repellent whitened spunbond nonwoven fabric according to claim 1, characterized in that: the whitening layer (2) is formed by weaving white cotton fibers (21) in a warp-weft mode, and the peripheral side surface of the cotton fibers (21) is coated with a fluorescent whitening agent (22).

8. The water-repellent whitened spunbond nonwoven fabric according to claim 1, characterized in that: and a nano silver fiber coating (4) is bonded on one side of the water repellent layer (1) back to the tensile layer (3).