Antibacterial anti-mite fabric and preparation method thereof

Abstract

The invention relates to an antibacterial anti-mite fabric and a preparation method thereof. The fabric comprises an inner layer, a middle layer and an outer layer which are sequentially connected, the middle layer comprises a first supporting layer and a second supporting layer which are integrally formed on the opposite faces of the inner layer and the outer layer respectively, the first supporting layer and the second supporting layer each comprise a concave section and a hot-pressing protruding section which are alternately connected, and a containing cavity is formed between the concave sections of the first supporting layer and the second supporting layer. A first connecting gasket and a second connecting gasket are correspondingly arranged on the inner side face of the containing cavity up and down. The middle layer is arranged between the inner layer and the outer layer, and the durability of the whole antibacterial and anti-mite coating of the fabric is improved through the middle layer, so that the antibacterial and anti-mite effect of the fabric can be kept more lasting, the attenuation speed of the antibacterial and anti-mite effect is low, and meanwhile, the antibacterial and anti-mite effect of the fabric is improved. The tear resistance and the down-proof performance of the fabric are remarkably improved, so that the fabric can be conveniently used as a down jacket fabric.

Description

Technical Field

[0001] The invention belongs to the technical field of fabrics, and in particular relates to an antibacterial and anti-mite fabric and a preparation method thereof. Background Art

[0002] Mites are tiny parasites that like to reproduce in warm and humid environments. Down jackets can easily become breeding grounds for mites due to their warmth-retaining properties. Therefore, in order to avoid or reduce allergic reactions caused by mites, down jacket fabrics are generally required to have good antibacterial and anti-mite effects. In the prior art, in order to improve the antibacterial and anti-mite effects of fabrics, antibacterial and anti-mite finishing agents are generally used to spray or coat the fabrics, so that the antibacterial and anti-mite finishing agents adhere to the surface of the fabric. However, during multiple washing and wearing of the fabric, the antibacterial and anti-mite effects of the antibacterial and anti-mite finishing agents are prone to decay faster or more significantly, and the durability is poor.

[0003] In addition, as a common clothing for outdoor activities, down jackets need to have high durability and good down-proof properties to cope with various complex environments and prevent down leakage to maintain good warmth. Therefore, down jacket fabrics are generally required to have good tear resistance and down-proof properties. To this end, we provide an antibacterial and anti-mite fabric with good tear resistance and down-proof properties and a preparation method thereof. Summary of the invention

[0004] The purpose of the present invention is to provide an antibacterial and anti-mite fabric and a preparation method thereof in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] An antibacterial and anti-mite fabric comprises an inner layer, a middle layer and an outer layer connected in sequence;

[0007] The middle layer comprises a support layer 1 and a support layer 2 which are integrally formed on opposite sides of the inner layer and the outer layer, respectively. The support layer 1 and the support layer 2 both comprise concave sections and hot-pressed convex sections which are alternately connected to each other. An accommodating cavity is formed between the concave sections of the support layer 1 and the support layer 2. A connecting gasket 1 and a connecting gasket 2 are correspondingly arranged on the upper and lower inner sides of the accommodating cavity. A clamping strip 1 is symmetrically arranged on the first connection gasket, and a clamping strip 2 is symmetrically arranged on the second connection gasket.

[0008] The first clamping strip has a bending portion 1 at one end, and the second clamping strip has a bending portion 2 at one end. The bending portion 1 of the first clamping strip and the bending portion 2 of the second clamping strip are correspondingly clamped to each other, and a chamber 1 is formed between the two first clamping strips and the two second clamping strips, and a hollow support member is supported in the chamber 1.

[0009] As a further optimization scheme of the present invention, the connection gasket 1 and the connection gasket 2 are both symmetrically provided with pressing strips, and one end of the pressing strips symmetrically provided on the connection gasket 1 and the connection gasket 2 is located between the hot-pressed raised sections of the support layer 1 and the support layer 2 and is fixed thereto by hot pressing;

[0010] A second chamber is formed between the four pressing strips, and the hollow support member, the first clamping strip, and the second clamping strip are all located inside the second chamber.

[0011] As a further optimization scheme of the present invention, the hollow support member includes a hollow cylinder with a hollow interior and an anti-mite and antibacterial coating coated on the inner and outer walls of the hollow cylinder. The four corner positions of the hollow cylinder protrude outward to form support protrusions for supporting the first clamping strip, the second clamping strip, and the pressing strip.

[0012] As a further optimization solution of the present invention, the bending portion 1 and the bending portion 2 where the clamping strip 1 and the clamping strip 2 are clamped to each other are fixed together with the side wall of the hollow support member by hot pressing.

[0013] As a further optimization scheme of the present invention, the support layer 1, support layer 2, connecting gasket 1, snap-in strip 1, connecting gasket 2, snap-in strip 2, hollow support member, and pressing strip are all made of polyamide material or polypropylene material.

[0014] A method for preparing an antibacterial and anti-mite fabric, the specific steps are as follows:

[0015] Step 1: Support layer 1 and support layer 2 are extruded on the inner layer and outer layer surfaces respectively by mold integral molding, connecting gasket 1 and clamping strip 1 are extruded in the concave section of supporting layer 1 by mold integral molding, and connecting gasket 2 and clamping strip 2 are extruded in the concave section of supporting layer 2 by mold integral molding, wherein one end of clamping strip 1 has bending portion 1, and one end of clamping strip 2 has bending portion 2;

[0016] Step 2: Extruding a hollow cylinder with a hollow interior through a mold, wherein the four corners of the hollow cylinder protrude outward to form support protrusions, applying an antibacterial and anti-mite coating on the outer wall and the inner wall of the hollow cylinder, and drying to obtain an anti-mite and antibacterial coating, thereby preparing a hollow support member;

[0017] Step three: stack the inner layer and the outer layer so that the support layer 1 and the support layer 2 on the inner layer and the outer layer correspond to each other, that is, the recessed sections and the hot-pressed raised sections on the support layer 1 and the support layer 2 are placed symmetrically, and a receiving cavity is formed between the recessed sections of the support layer 1 and the support layer 2. The clamping strips 1 and 2 are clamped together by the bending part 1 and the bending part 2 to form a chamber 1. The hollow support member prepared in step 2 is placed inside the chamber 1. The antibacterial and anti-mite fabric is then hot-pressed on the inner layer, the outer layer and the hot-pressed raised sections of the support layer 1 and the support layer 2.

[0018] As a further optimization scheme of the present invention, in step one, a pressing strip is extruded in the concave section of the support layer one and the support layer two by integral molding with a mold; in step three, one end of the pressing strip is placed between the hot-pressed raised sections of the support layer one and the support layer two, and then the inner layer, the outer layer, the hot-pressed raised sections of the support layer one and the support layer two and the pressing strip are subjected to hot-pressing treatment to obtain the antibacterial and anti-mite fabric;

[0019] Among them, a second cavity is formed between the four pressing strips after the hot pressing treatment, and the hollow support piece, the first clamping strip and the second clamping strip are all located inside the second cavity.

[0020] As a further optimization scheme of the present invention, in step three, the temperature of the hot pressing treatment is 150-165°C, the hot pressing pressure is 4-7MPa, the number of hot pressing times is 2-5 times, and the hot pressing time for each time is 3-6min.

[0021] As a further optimization scheme of the present invention, the bending portion 1 and the bending portion 2 where the clamping strip 1 and the clamping strip 2 are clamped to each other are hot pressed toward the side wall of the hollow support member to fix the clamping strip 1, the clamping strip 2 and the hollow support member together. The hot pressing temperature is 85-95°C, the hot pressing pressure is 2-4MPa, the number of hot pressing times is 1-3 times, and the hot pressing time for each time is 2-5min.

[0022] The beneficial effects of the present invention are:

[0023] 1) The present invention provides a middle layer between the inner layer and the outer layer, and the middle layer improves the durability of the antibacterial and anti-mite coating of the entire fabric, so that the antibacterial and anti-mite effect of the fabric can be maintained for a longer time, and the antibacterial and anti-mite effect decays more slowly. At the same time, the tear resistance and anti-down drilling performance of the fabric are significantly improved, so that it can be used as a down jacket fabric;

[0024] 2) The present invention adopts the structural design of the first and second clamping strips and the pressing strips arranged outside the hollow support member, and the first and second bending parts respectively arranged on the first and second clamping strips and making them mutually clamped and limited. When used in combination, the structural stability of the entire middle layer can be improved, so that the antibacterial and anti-mite coating can be better maintained, so that the fabric can still maintain a good antibacterial and anti-mite effect after multiple washings, and the tear resistance and anti-down performance of the fabric are significantly improved;

[0025] 3) The present invention can improve the anti-down drilling effect of the fabric through the arrangement of the pressing strip, the arrangement of the snap-in strip 1 and the snap-in strip 2, and the structural design of the bending portion 1 and the bending portion 2 which are respectively arranged on the snap-in strip 1 and the snap-in strip 2 and are locked with each other to limit the position. Among them, the arrangement of the pressing strip, the arrangement of the snap-in strip 1 and the snap-in strip 2 can improve the anti-down drilling effect of the fabric more significantly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic cross-sectional view of the antibacterial and anti-mite fabric of Example 1-2 of the present invention.

[0027] Figure 2 The present invention Figure 1 Schematic diagram of part of the structure.

[0028] Figure 3 It is a schematic cross-sectional view of a hollow support member of the present invention.

[0029] Figure 4 It is a structural schematic diagram of the first and second card connecting strips of the present invention in a state of being connected to each other.

[0030] Figure 5 It is a schematic structural diagram of the first and second clamping strips of the present invention when they are separated from each other.

[0031] In the figure: 1, inner layer; 2, middle layer; 3, outer layer; 21, support layer one; 22, support layer two; 23, connecting gasket one; 24, snap-in strip one; 25, connecting gasket two; 26, snap-in strip two; 27, hollow support member; 271, hollow cylinder; 272, supporting protrusion; 273, anti-mite and antibacterial coating; 28, pressing strip. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] 1. Materials

[0034] 1. In the present application, the inner layer 1 is a commercially available pure cotton fabric, and the outer layer 3 is a commercially available 230T polyester pongee fabric.

[0035] 2. The antibacterial and anti-mite finishing agent used in this application is RUCO-B AC MED, which was purchased from Wujiang Jincheng Fine Chemical Co., Ltd.

[0036] Unless otherwise specified, the methods used in this example are all known to those skilled in the art, and are conventional methods. The reagents and other materials used are all commercially available products unless otherwise specified.

[0037] 2. Methods

[0038] In order to explore the effects of different structural designs of the middle layer 2 on the antibacterial and anti-mite performance, tear resistance, and anti-down drilling performance of the antibacterial and anti-mite fabric, the following technical solutions of Examples 1-2 and Comparative Examples 1-3 were designed, as shown below:

[0039] Example 1

[0040] like Figure 1-5 As shown, an antibacterial and anti-mite fabric comprises an inner layer 1, a middle layer 2, and an outer layer 3 connected in sequence;

[0041] The middle layer 2 comprises a support layer 1 21 and a support layer 2 22 which are integrally formed on opposite sides of the inner layer 1 and the outer layer 3, respectively. The support layer 1 21 and the support layer 2 22 both comprise concave sections and hot-pressed convex sections which are alternately connected to each other. An accommodating cavity is formed between the concave sections of the support layer 1 21 and the support layer 2 22. A connecting gasket 1 23 and a connecting gasket 25 are correspondingly arranged on the upper and lower inner sides of the accommodating cavity. A clamping strip 1 24 is symmetrically arranged on the left and right sides of the connecting gasket 1 23, and a clamping strip 26 is symmetrically arranged on the left and right sides of the connecting gasket 25.

[0042] The first clamping strip 24 has a bending portion 1 at one end, and the second clamping strip 26 has a bending portion 2 at one end. The bending portion 1 of the first clamping strip 24 and the bending portion 2 of the second clamping strip 26 are correspondingly clamped to each other, and a chamber 1 is formed between the two first clamping strips 24 and the two second clamping strips 26, and a hollow support member 27 is supported in the chamber 1.

[0043] Preferably, the connection gasket 1 23 and the connection gasket 2 25 are both symmetrically provided with pressing strips 28, and one end of the pressing strips 28 symmetrically provided on the connection gasket 1 23 and the connection gasket 2 25 is located between the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22 and fixed thereto by hot pressing;

[0044] A second chamber is formed between the four pressing strips 28 , and the hollow support member 27 , the first clamping strip 24 , and the second clamping strip 26 are all located inside the second chamber.

[0045] Preferably, the hollow support member 27 includes a hollow cylinder 271 with a hollow interior, an anti-mite and antibacterial coating 273 coated on the inner and outer walls of the hollow cylinder 271, and the four corners of the hollow cylinder 271 protrude outward to form support protrusions 272 for supporting the snap-in strip 1 24, the snap-in strip 26, and the pressing strip 28.

[0046] In the present application, the support layer 1 21, the support layer 2 22, the connecting gasket 1 23, the connecting strip 1 24, the connecting gasket 2 25, the connecting strip 26, the hollow support member 27, and the pressing strip 28 are all made of polyamide material or polypropylene material.

[0047] A method for preparing an antibacterial and anti-mite fabric, the specific steps are as follows:

[0048] Step 1: A support layer 1 21 and a support layer 2 22 are extruded on the surfaces of the inner layer 1 and the outer layer 3 by mold integral molding, a connecting gasket 1 23, a clamping strip 1 24, and a pressing strip 28 are extruded in the concave section of the support layer 1 21 by mold integral molding, and a connecting gasket 25, a clamping strip 26, and a pressing strip 28 are extruded in the concave section of the support layer 2 22 by mold integral molding, wherein one end of the clamping strip 1 24 has a bending portion 1, and one end of the clamping strip 2 26 has a bending portion 2;

[0049] Step 2: Extruding a hollow cylinder 271 with a hollow interior through a mold, the four corners of the hollow cylinder 271 protrude outward to form support protrusions 272, applying an antibacterial and anti-mite coating on the outer wall and the inner wall of the hollow cylinder 271, and drying to obtain an anti-mite and antibacterial coating 273, thereby preparing a hollow support member 27;

[0050] Step three: stack the inner layer 1 and the outer layer 3 so that the support layer 1 21 and the support layer 2 22 on the inner layer 1 and the outer layer 3 correspond to each other, that is, the concave sections and the hot-pressed convex sections on the support layer 1 21 and the support layer 2 22 are symmetrically placed, and a receiving cavity is formed between the concave sections of the support layer 1 21 and the support layer 2 22, and the clamping strip 1 24 and the clamping strip 2 26 are clamped by the bending part 1 and the bending part 2 to form a chamber 1, and the hollow support piece 27 prepared in step 2 is placed inside the chamber 1, and one end of the pressing strip 28 is placed between the hot-pressed convex sections of the support layer 1 21 and the support layer 2 22, and then the inner layer 1, the outer layer 3, and the hot-pressed convex sections of the support layer 1 21 and the support layer 2 22 and the pressing strip 28 are subjected to hot-pressing treatment to obtain the antibacterial and anti-mite fabric;

[0051] Among them, a second chamber is formed between the four pressing strips 28 after the hot pressing treatment, and the hollow support member 27, the first clamping strip 24, and the second clamping strip 26 are all located inside the second chamber;

[0052] In step three, the temperature of the hot pressing treatment is 157±3°C, the hot pressing pressure is 6MPa, the number of hot pressing times is 4 times, and the hot pressing time for each time is 5 minutes.

[0053] Example 2

[0054] An antibacterial and anti-mite fabric, based on Example 1, the improvement of this example is that the bending part 1 and the bending part 2 of the mutually clamped clamping strip 1 24 and the clamping strip 2 26 are fixed together with the side wall of the hollow support member 27 by heat pressing.

[0055] A method for preparing an antibacterial and anti-mite fabric, the specific steps are as follows:

[0056] Step 1: A support layer 1 21 and a support layer 2 22 are extruded on the surfaces of the inner layer 1 and the outer layer 3 by mold integral molding, a connecting gasket 1 23, a clamping strip 1 24, and a pressing strip 28 are extruded in the concave section of the support layer 1 21 by mold integral molding, and a connecting gasket 25, a clamping strip 26, and a pressing strip 28 are extruded in the concave section of the support layer 2 22 by mold integral molding, wherein one end of the clamping strip 1 24 has a bending portion 1, and one end of the clamping strip 2 26 has a bending portion 2;

[0057] Step 2: Extruding a hollow cylinder 271 with a hollow interior through a mold, the four corners of the hollow cylinder 271 protrude outward to form support protrusions 272, applying an antibacterial and anti-mite coating on the outer wall and the inner wall of the hollow cylinder 271, and drying to obtain an anti-mite and antibacterial coating 273, thereby preparing a hollow support member 27;

[0058] Step 3: stack the inner layer 1 and the outer layer 3 so that the support layer 1 21 and the support layer 2 22 on the inner layer 1 and the outer layer 3 correspond to each other, that is, the concave sections and the hot-pressed convex sections on the support layer 1 21 and the support layer 2 22 are symmetrically placed, and a receiving cavity is formed between the concave sections of the support layer 1 21 and the support layer 2 22, and the clamping strip 1 24 and the clamping strip 2 26 are clamped together by the bending portion 1 and the bending portion 2 to form a cavity 1;

[0059] The bending part 1 and the bending part 2 of the clamping strip 1 24 and the clamping strip 2 26 are clamped to each other and are hot pressed toward the side wall of the hollow support member 27 to fix the clamping strip 1 24, the clamping strip 26 and the hollow support member 27 together. The hot pressing temperature is 90±2°C, the hot pressing pressure is 3MPa, the hot pressing times are 2 times, and the hot pressing time for each time is 4min.

[0060] The hollow support member 27 prepared in step 2 is placed inside chamber 1, one end of the pressing strip 28 is placed between the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22, and then the inner layer 1, the outer layer 3, the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22, and the pressing strip 28 are subjected to hot-pressing treatment to obtain the antibacterial and anti-mite fabric;

[0061] Among them, a second chamber is formed between the four pressing strips 28 after the hot pressing treatment, and the hollow support member 27, the first clamping strip 24, and the second clamping strip 26 are all located inside the second chamber;

[0062] In step three, the temperature of the hot pressing treatment is 157±3°C, the hot pressing pressure is 6MPa, the number of hot pressing times is 4 times, and the hot pressing time for each time is 5 minutes.

[0063] The rest are consistent with Example 1.

[0064] Comparative Example 1

[0065] In this comparative example, the difference from Example 2 is that an antibacterial and anti-mite fabric in this comparative example does not have the structure of the pressing strip 28, which is as follows:

[0066] An antibacterial and anti-mite fabric comprises an inner layer 1, a middle layer 2, and an outer layer 3 which are connected in sequence;

[0067] The middle layer 2 comprises a support layer 1 21 and a support layer 2 22 which are integrally formed on opposite sides of the inner layer 1 and the outer layer 3, respectively. The support layer 1 21 and the support layer 2 22 both comprise concave sections and hot-pressed convex sections which are alternately connected to each other. An accommodating cavity is formed between the concave sections of the support layer 1 21 and the support layer 2 22. A connecting gasket 1 23 and a connecting gasket 25 are correspondingly arranged on the upper and lower inner sides of the accommodating cavity. A clamping strip 1 24 is symmetrically arranged on the left and right sides of the connecting gasket 1 23, and a clamping strip 26 is symmetrically arranged on the left and right sides of the connecting gasket 25.

[0068] The first clamping strip 24 has a bending portion 1 at one end, and the second clamping strip 26 has a bending portion 2 at one end. The bending portion 1 of the first clamping strip 24 and the bending portion 2 of the second clamping strip 26 are correspondingly clamped to each other, and a chamber 1 is formed between the two first clamping strips 24 and the two second clamping strips 26, and a hollow support member 27 is supported in the chamber 1.

[0069] In this comparative example, the hollow support member 27 includes a hollow cylinder 271 with a hollow interior, an anti-mite and antibacterial coating 273 coated on the inner and outer walls of the hollow cylinder 271, and the four corner positions of the hollow cylinder 271 protrude outward to form support protrusions 272 for supporting the clamping strip 1 24 and the clamping strip 2 26.

[0070] In this comparative example, the bending portion 1 and the bending portion 2 of the clamping strip 1 24 and the clamping strip 2 26 that are clamped to each other are fixed to the side wall of the hollow support member 27 by heat pressing.

[0071] In this comparative example, the support layer 1 21 , the support layer 2 22 , the connection gasket 1 23 , the clamping strip 1 24 , the connection gasket 2 25 , the clamping strip 2 26 , and the hollow support member 27 are all made of polyamide material or polypropylene material.

[0072] A method for preparing an antibacterial and anti-mite fabric, the specific steps are as follows:

[0073] Step 1: A support layer 1 21 and a support layer 2 22 are extruded on the surface of the inner layer 1 and the outer layer 3 by mold integral molding, a connecting gasket 1 23 and a clamping strip 1 24 are extruded in the concave section of the support layer 1 21 by mold integral molding, and a connecting gasket 2 25 and a clamping strip 2 26 are extruded in the concave section of the support layer 2 22 by mold integral molding, wherein one end of the clamping strip 1 24 has a bending portion 1, and one end of the clamping strip 2 26 has a bending portion 2;

[0074] Step 2: Extruding a hollow cylinder 271 with a hollow interior through a mold, the four corners of the hollow cylinder 271 protrude outward to form support protrusions 272, applying an antibacterial and anti-mite coating on the outer wall and the inner wall of the hollow cylinder 271, and drying to obtain an anti-mite and antibacterial coating 273, thereby preparing a hollow support member 27;

[0075] Step 3: stack the inner layer 1 and the outer layer 3 so that the support layer 1 21 and the support layer 2 22 on the inner layer 1 and the outer layer 3 correspond to each other, that is, the concave sections and the hot-pressed convex sections on the support layer 1 21 and the support layer 2 22 are symmetrically placed, and a receiving cavity is formed between the concave sections of the support layer 1 21 and the support layer 2 22, and the clamping strip 1 24 and the clamping strip 2 26 are clamped together by the bending portion 1 and the bending portion 2 to form a cavity 1;

[0076] The bending part 1 and the bending part 2 of the clamping strip 1 24 and the clamping strip 2 26 are clamped to each other and are hot pressed toward the side wall of the hollow support member 27 to fix the clamping strip 1 24, the clamping strip 26 and the hollow support member 27 together. The hot pressing temperature is 90±2°C, the hot pressing pressure is 3MPa, the hot pressing times are 2 times, and the hot pressing time for each time is 4min.

[0077] Place the hollow support member 27 prepared in step 2 inside chamber 1, and then perform hot pressing treatment on the hot pressed raised sections of the inner layer 1, outer layer 3, support layer 1 21, and support layer 2 22 (the hot pressing treatment process parameters are consistent with those in Example 2) to obtain the antibacterial and anti-mite fabric.

[0078] Comparative Example 2

[0079] In this comparative example, the difference from Example 2 is that the first card strip 24 of the antibacterial and anti-mite fabric in this comparative example does not have the structural design of the first bending part, and the second card strip 26 does not have the structural design of the second bending part, and they cannot be connected to each other, that is, one end of the first card strip 24 and the second card strip 26 are both in a straight state, as follows:

[0080] An antibacterial and anti-mite fabric comprises an inner layer 1, a middle layer 2, and an outer layer 3 which are connected in sequence;

[0081] The middle layer 2 comprises a support layer 1 21 and a support layer 2 22 which are integrally formed on opposite sides of the inner layer 1 and the outer layer 3, respectively. The support layer 1 21 and the support layer 2 22 both comprise concave sections and hot-pressed convex sections which are alternately connected to each other. An accommodating cavity is formed between the concave sections of the support layer 1 21 and the support layer 2 22. A connecting gasket 1 23 and a connecting gasket 25 are correspondingly arranged on the upper and lower inner sides of the accommodating cavity. A clamping strip 1 24 is symmetrically arranged on the left and right sides of the connecting gasket 1 23, and a clamping strip 26 is symmetrically arranged on the left and right sides of the connecting gasket 25.

[0082] A hollow support member 27 is supported between the two first clamping strips 24 and the two second clamping strips 26 .

[0083] Preferably, the connection gasket 1 23 and the connection gasket 2 25 are both symmetrically provided with pressing strips 28, and one end of the pressing strips 28 symmetrically provided on the connection gasket 1 23 and the connection gasket 2 25 is located between the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22 and fixed thereto by hot pressing;

[0084] A second chamber is formed between the four pressing strips 28 , and the hollow support member 27 , the first clamping strip 24 , and the second clamping strip 26 are all located inside the second chamber.

[0085] Preferably, the hollow support member 27 includes a hollow cylinder 271 with a hollow interior, an anti-mite and antibacterial coating 273 coated on the inner and outer walls of the hollow cylinder 271, and the four corners of the hollow cylinder 271 protrude outward to form support protrusions 272 for supporting the snap-in strip 1 24, the snap-in strip 26, and the pressing strip 28.

[0086] In the present application, the support layer 1 21, the support layer 2 22, the connecting gasket 1 23, the connecting strip 1 24, the connecting gasket 2 25, the connecting strip 26, the hollow support member 27, and the pressing strip 28 are all made of polyamide material or polypropylene material.

[0087] A method for preparing an antibacterial and anti-mite fabric, the specific steps are as follows:

[0088] Step 1: A support layer 1 21 and a support layer 2 22 are extruded on the surface of the inner layer 1 and the outer layer 3 by mold integral molding, a connecting gasket 1 23, a clamping strip 1 24, and a pressing strip 28 are extruded in the concave section of the support layer 1 21 by mold integral molding, and a connecting gasket 25, a clamping strip 26, and a pressing strip 28 are extruded in the concave section of the support layer 2 2 by mold integral molding;

[0089] Step 2: Extruding a hollow cylinder 271 with a hollow interior through a mold, the four corners of the hollow cylinder 271 protrude outward to form support protrusions 272, applying an antibacterial and anti-mite coating on the outer wall and the inner wall of the hollow cylinder 271, and drying to obtain an anti-mite and antibacterial coating 273, thereby preparing a hollow support member 27;

[0090] Step 3: stack the inner layer 1 and the outer layer 3 so that the support layer 1 21 and the support layer 2 22 on the inner layer 1 and the outer layer 3 correspond to each other, that is, the concave sections and the hot-pressed convex sections on the support layer 1 21 and the support layer 2 22 are symmetrically placed, and a receiving cavity is formed between the concave sections of the support layer 1 21 and the support layer 2 22;

[0091] Place the hollow support 27 between the two first clamping strips 24 and the two second clamping strips 26, and heat press the first clamping strip 24 and the second clamping strip 26 toward the side wall of the hollow support 27, so that one end (straight state) of the first clamping strip 24 and the second clamping strip 26 is fixed to the hollow support 27, the heat pressing temperature is 90±2℃, the heat pressing pressure is 3MPa, the heat pressing times are 2 times, and the heat pressing time for each time is 4min;

[0092] The hollow support member 27 prepared in step 2 is placed inside chamber 1, one end of the pressing strip 28 is placed between the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22, and then the inner layer 1, the outer layer 3, and the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22 and the pressing strip 28 are subjected to hot-pressing treatment (the hot-pressing treatment process parameters are the same as those in Example 2) to obtain the antibacterial and anti-mite fabric;

[0093] Among them, a second cavity is formed between the four pressing strips 28 after the hot pressing treatment, and the hollow support member 27, the first clamping strip 24, and the second clamping strip 26 are all located inside the second cavity.

[0094] Comparative Example 3

[0095] In this comparative example, the difference from Example 2 is that the antibacterial and anti-mite fabric in this comparative example does not have the structure of the first snap-in strip 24 and the second snap-in strip 26, which is as follows:

[0096] An antibacterial and anti-mite fabric comprises an inner layer 1, a middle layer 2, and an outer layer 3 which are connected in sequence;

[0097] The middle layer 2 includes a support layer 1 21 and a support layer 2 22 which are integrally formed on opposite sides of the inner layer 1 and the outer layer 3, respectively. The support layer 1 21 and the support layer 2 22 both include recessed sections and hot-pressed raised sections which are alternately connected to each other. An accommodating cavity is formed between the recessed sections of the support layer 1 21 and the support layer 2 22, and a connecting gasket 1 23 and a connecting gasket 2 25 are correspondingly arranged on the upper and lower inner side surfaces of the accommodating cavity.

[0098] Preferably, the connection gasket 1 23 and the connection gasket 2 25 are both symmetrically provided with pressing strips 28, and one end of the pressing strips 28 symmetrically provided on the connection gasket 1 23 and the connection gasket 2 25 is located between the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22 and fixed thereto by hot pressing;

[0099] A second chamber is formed between the four pressing strips 28 , and a hollow support member 27 is supported inside the second chamber.

[0100] Preferably, the hollow support member 27 includes a hollow cylinder 271 with a hollow interior, an anti-mite and antibacterial coating 273 coated on the inner and outer walls of the hollow cylinder 271, and the four corners of the hollow cylinder 271 protrude outward to form support protrusions 272 for supporting the snap-in strip 1 24, the snap-in strip 26, and the pressing strip 28.

[0101] In the present application, the support layer 1 21, the support layer 2 22, the connection gasket 1 23, the connection gasket 25, the hollow support member 27, and the pressing strip 28 are all made of polyamide material or polypropylene material.

[0102] A method for preparing an antibacterial and anti-mite fabric, the specific steps are as follows:

[0103] Step 1: A support layer 1 21 and a support layer 2 22 are extruded on the surface of the inner layer 1 and the outer layer 3 respectively by means of a mold, a connecting gasket 1 23 and a pressing strip 28 are extruded in the concave section of the support layer 1 21 by means of a mold, and a connecting gasket 25 and a pressing strip 28 are extruded in the concave section of the support layer 2 22 by means of a mold;

[0104] Step 2: Extruding a hollow cylinder 271 with a hollow interior through a mold, the four corners of the hollow cylinder 271 protrude outward to form support protrusions 272, applying an antibacterial and anti-mite coating on the outer wall and the inner wall of the hollow cylinder 271, and drying to obtain an anti-mite and antibacterial coating 273, thereby preparing a hollow support member 27;

[0105] Step 3: stack the inner layer 1 and the outer layer 3 so that the support layer 1 21 and the support layer 2 22 on the inner layer 1 and the outer layer 3 correspond to each other, that is, the concave sections and the hot-pressed convex sections on the support layer 1 21 and the support layer 2 22 are symmetrically placed, and a receiving cavity is formed between the concave sections of the support layer 1 21 and the support layer 2 22;

[0106] The hollow support member 27 prepared in step 2 is placed between four pressing strips 28, and one end of the pressing strip 28 is placed between the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22, and then the inner layer 1, the outer layer 3, and the hot-pressed raised sections of the support layer 1 21 and the support layer 2 22 and the pressing strip 28 are subjected to hot-pressing treatment (the hot-pressing treatment process parameters are consistent with those in Example 2) to obtain the antibacterial and anti-mite fabric;

[0107] A second cavity is formed between the four pressing strips 28 after the hot pressing process, and the hollow support member 27 is located inside the second cavity.

[0108] 3. Performance Test Experiment

[0109] It should be noted that the antibacterial and anti-mite performance test sample fabrics, tear resistance test sample fabrics, and anti-down performance test sample fabrics of the following Examples 1-2 and Comparative Examples 1-3 are all subjected to hot pressing treatment to heat-press and lock the inner layer 1, the middle layer 2, and the outer layer 3 (the hot pressing treatment temperature is 130°C ± 2°C, the hot pressing pressure is 4MPa, the number of hot pressing times is 3 times, and the hot pressing time for each time is 6min) to keep the front and rear ends of the accommodating cavity in a sealed state.

[0110] Antibacterial and anti-mite tests were conducted on unwashed antibacterial and anti-mite fabric samples and antibacterial and anti-mite fabric samples that had been washed 35 times (washed 35 times in a drum washing machine with a speed of 1400r / min, and each washing time was 24min).

[0111] Antibacterial performance test: According to GB / T 20944.2-2007 "Evaluation of antibacterial properties of textiles Part 2: Absorption method", the test bacteria: Staphylococcus aureus (including but not limited to this bacteria, can also be Candida, Escherichia coli, etc.), according to the standard, each fabric sample was cut into 250mm×25mm size.

[0112] Anti-mite performance test: The experiment was carried out in accordance with the determination method of "GB / T24253-2009", the action time was 48h, and the mite inhibition rate evaluation standard was; greater than or equal to 95%, the sample has an extremely strong anti-mite effect; greater than or equal to ≥80%, the sample has a strong anti-mite effect; greater than or equal to 60%, the sample has an anti-mite effect.

[0113] Table 1 Experimental data record table of antibacterial and anti-mite performance test

[0114]

[0115]

[0116] The experimental results show that the antibacterial rate and mite inhibition rate of the fabrics of Examples 1-2 can still be maintained at a high level after 35 times of washing, and the difference between the fabrics of Examples 1 and 3 is that in Example 2, the bending part 1 and the bending part 2 of the clamping strip 1 24 and the clamping strip 2 26 are clamped to each other toward the side wall of the hollow support member 27, so that the clamping strip 1 24, the clamping strip 2 26 and the hollow support member 27 are fixed together, but Example 1 does not. The data proves that the hot pressing and fixing of the bending part 1 and the bending part 2 of the clamping strip 1 24 and the clamping strip 2 26 to the hollow support member 27 can further improve the durability of the antibacterial and anti-mite coating of the fabric, so that it can still maintain a good antibacterial and anti-mite effect after multiple washings.

[0117] The difference between comparative example 1 and example 2 is that the fabric of comparative example 1 does not have the structure of the pressing strip 28. By comparing the antibacterial rate and mite inhibition rate of the fabric of example 2 after washing 35 times with those of comparative example 1, it can be seen that the setting of the pressing strip 28 can make the antibacterial and anti-mite coating more durable, so that the fabric can still maintain a good antibacterial and anti-mite effect after multiple washings;

[0118] The difference between Comparative Example 2 and Example 2 is that the snap-in strip 1 24 of the fabric of Comparative Example 2 does not have the structural design of the bending part 1, and the snap-in strip 2 26 does not have the structural design of the bending part 2, and they cannot be snapped together, that is, one end of the snap-in strip 1 24 and the snap-in strip 2 26 are both in a straight state; the difference between Comparative Example 3 and Example 2 is that the fabric of Comparative Example 2 does not have the structure of the snap-in strip 1 24 and the snap-in strip 2 26; by comparing the antibacterial rate and mite inhibition rate of the fabric of Example 2 after washing 35 times with Comparative Examples 2-3, it can be learned that the arrangement of the snap-in strip 1 24 and the snap-in strip 26 and the structural design of the bending part 1 and the bending part 2 which are respectively arranged on the snap-in strip 1 24 and the snap-in strip 26 and are snap-into and limited to each other can make the structural stability of the entire middle layer 2 better, so that the antibacterial and anti-mite coating can be maintained for a better duration, so that the fabric can still maintain a good antibacterial and anti-mite effect after multiple washings.

[0119] The tear resistance test was carried out on unwashed antibacterial and anti-mite fabric samples and antibacterial and anti-mite fabric samples washed 30 times (washed 30 times in a drum washing machine with a speed of 1200r / min, and each washing time was 24min).

[0120] Tear resistance test: Experimental equipment: Q800 dynamic mechanical analyzer (DMA, TA Instruments, Inc., USA). Experimental method: take the antibacterial and anti-mite fabrics of the above-mentioned Examples 1-3 and Comparative Examples 1-2 as samples. The sample specifications are 240×160 mm long strips. The samples are placed in a stretching fixture, one end is fixed, and the other end can move with the fixture. The temperature is 22°C±3°C, the frequency is set to 2Hz, and the stress is applied to gradually increase from 0 at a speed of 3MPa / s. The strain change of the sample is recorded until the sample breaks, and the stress at the breaking point is taken as the tensile strength of the sample.

[0121] Table 2 Tear resistance test data record

[0122]

[0123] Experimental conclusion: It can be seen from the data in Table 2 that the fabrics of Examples 1-2 all have good tear resistance, and by comparing the data of Example 2 with Comparative Examples 1-3, it can be seen that the setting of the pressing strip 28, the setting of the snap-in strip 1 24 and the snap-in strip 26, and the structural design of the bending part 1 and the bending part 2 respectively arranged on the snap-in strip 1 24 and the snap-in strip 26 and making them mutually snap-in and limit each other, when used in coordination with each other, make the structural stability of the entire middle layer 2 better, thereby significantly improving the tear resistance of the fabric and making the fabric not easy to be damaged.

[0124] Anti-down performance test: According to the national standard GB / T12705.2-2009 "Test method for anti-down leakage of textile fabrics Part 2: Transfer box method", the anti-down drilling performance of the fabric is tested. When the number of down drilling roots of the fabric is greater than 15, the anti-down drilling performance is poor; when the number of down drilling roots is 5<≤15, it has anti-down drilling performance; when the number of down drilling roots is ≤5, it has good anti-down drilling performance.

[0125] Among them, the anti-down performance test sample fabrics are specifically unwashed antibacterial and anti-mite fabrics; antibacterial and anti-mite fabrics washed 20 times (washed 20 times in a drum washing machine with a speed of 1400r / min, and each washing time is 21min); antibacterial and anti-mite fabrics washed 40 times (washed 40 times in a drum washing machine with a speed of 1400r / min, and each washing time is 21min).

[0126] Table 3 Anti-drilling performance test data record table

[0127]

[0128] Experimental results: It can be seen from the data in Table 3 that the fabrics of Examples 1-2 all have good anti-down drilling effects, and by comparing Example 2 with Comparative Examples 1-3, it is found that the setting of the pressing strip 28, the setting of the snap-in strip 1 24 and the snap-in strip 26, and the structural design of the bending part 1 and the bending part 2 respectively arranged on the snap-in strip 1 24 and the snap-in strip 26 and making them mutually snap-in and limit each other can all improve the anti-down drilling effect of the fabrics, among which the setting of the pressing strip 28, the setting of the snap-in strip 1 24 and the snap-in strip 26 can significantly improve the anti-down drilling effect of the fabrics.

[0129] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An antibacterial and anti-mite fabric, characterized by: It comprises an inner layer (1), a middle layer (2), and an outer layer (3) which are connected in sequence; The middle layer (2) comprises a support layer 1 (21) and a support layer 2 (22) which are integrally formed on opposite sides of the inner layer (1) and the outer layer (3), respectively; the support layer 1 (21) and the support layer 2 (22) both comprise mutually alternately connected concave sections and hot-pressed convex sections; an accommodating cavity is formed between the concave sections of the support layer 1 (21) and the support layer 2 (22); a connecting gasket 1 (23) and a connecting gasket 2 (25) are correspondingly arranged on the upper and lower inner sides of the accommodating cavity; a clamping strip 1 (24) is symmetrically arranged on the left and right sides of the connecting gasket 1 (23); and a clamping strip 2 (26) is symmetrically arranged on the left and right sides of the connecting gasket 2 (25); One end of the first clamping strip (24) has a bending portion one, and one end of the second clamping strip (26) has a bending portion two. The bending portion one of the first clamping strip (24) and the bending portion two of the second clamping strip (26) are correspondingly clamped together, and a chamber one is formed between the two first clamping strips (24) and the two second clamping strips (26), and a hollow support member (27) is supported in the chamber one.

2. The antibacterial and anti-mite fabric according to claim 1, characterized in that: The connecting gasket 1 (23) and the connecting gasket 2 (25) are both symmetrically provided with pressing strips (28), and one end of the pressing strips (28) symmetrically provided on the connecting gasket 1 (23) and the connecting gasket 2 (25) is located between the hot-pressed raised sections of the supporting layer 1 (21) and the supporting layer 2 (22) and fixed thereto by hot pressing; A second chamber is formed between the four pressing strips (28), and the hollow support member (27), the first clamping strip (24), and the second clamping strip (26) are all located inside the second chamber.

3. An antibacterial and anti-mite fabric according to any one of claims 1-2, characterized in that: The hollow support member (27) comprises a hollow cylinder (271) with a hollow interior, and an anti-mite and antibacterial coating (273) coated on the inner and outer walls of the hollow cylinder (271); the four corners of the hollow cylinder (271) protrude outward to form support protrusions (272) for supporting the first clamping strip (24), the second clamping strip (26), and the pressing strip (28).

4. The antibacterial and anti-mite fabric according to any one of claim 3, characterized in that: The bending portion 1 and the bending portion 2 of the clamping strip 1 (24) and the clamping strip 2 (26) are clamped to each other and are fixed to the side wall of the hollow support member (27) by heat pressing.

5. The antibacterial and anti-mite fabric according to claim 3, characterized in that: The supporting layer 1 (21), the supporting layer 2 (22), the connecting gasket 1 (23), the connecting strip 1 (24), the connecting gasket 2 (25), the connecting strip 2 (26), the hollow supporting piece (27), and the pressing strip (28) are all made of polyamide material or polypropylene material.

6. A method for preparing the antibacterial and anti-mite fabric according to any one of claims 1 to 5, characterized in that: The specific steps are as follows: Step 1: Support layer 1 (21) and support layer 2 (22) are extruded on the surfaces of the inner layer (1) and the outer layer (3) respectively by means of a mold, a connecting gasket 1 (23) and a clamping strip 1 (24) are extruded in the concave section of the support layer 1 (21) by means of a mold, and a connecting gasket 2 (25) and a clamping strip 2 (26) are extruded in the concave section of the support layer 2 (22) by means of a mold, wherein one end of the clamping strip 1 (24) has a bending portion 1, and one end of the clamping strip 2 (26) has a bending portion 2; Step 2: Extruding a hollow cylinder (271) with a hollow interior through an integral mold, wherein the four corners of the hollow cylinder (271) protrude outward to form support protrusions (272), and applying an antibacterial and anti-mite coating on the outer wall and the inner wall of the hollow cylinder (271) and drying to obtain an anti-mite and antibacterial coating (273), thereby preparing a hollow support member (27); Step three: stacking the inner layer (1) and the outer layer (3) so that the support layer 1 (21) and the support layer 2 (22) on the inner layer (1) and the outer layer (3) correspond to each other, that is, the recessed sections and the hot-pressed raised sections on the support layer 1 (21) and the support layer 2 (22) are symmetrically placed, and a receiving cavity is formed between the recessed sections of the support layer 1 (21) and the support layer 2 (22), and the clamping strip 1 (24) and the clamping strip 2 (26) are clamped together by the bending part 1 and the bending part 2 to form a cavity 1, and the hollow support member (27) prepared in step two is placed inside the cavity 1, and then the inner layer (1), the outer layer (3) and the hot-pressed raised sections of the support layer 1 (21) and the support layer 2 (22) are subjected to hot-pressing treatment to obtain an antibacterial and anti-mite fabric.

7. The method for preparing an antibacterial and anti-mite fabric according to claim 6, characterized in that: In step one, a pressing strip (28) is extruded in the concave sections of the support layer one (21) and the support layer two (22) by integral molding with a mold; in step three, one end of the pressing strip (28) is placed between the hot-pressed raised sections of the support layer one (21) and the support layer two (22), and then the inner layer (1), the outer layer (3) and the hot-pressed raised sections of the support layer one (21) and the support layer two (22) and the pressing strip (28) are subjected to hot-pressing treatment to obtain an antibacterial and anti-mite fabric; Wherein, a second cavity is formed between the four pressing strips (28) after the hot pressing treatment, and the hollow support member (27), the first clamping strip (24), and the second clamping strip (26) are all located inside the second cavity.

8. The method for preparing an antibacterial and anti-mite fabric according to claim 7, characterized in that: In step three, the temperature of the hot pressing treatment is 150-165° C., the hot pressing pressure is 4-7 MPa, the number of hot pressing times is 2-5 times, and the hot pressing time for each time is 3-6 minutes.

9. A method for preparing an antibacterial and anti-mite fabric according to any one of claims 6 to 8, characterized in that: The bending part 1 and the bending part 2 of the clamping strip 1 (24) and the clamping strip 2 (26) are clamped to each other and are hot pressed toward the side wall of the hollow support member (27) to fix the clamping strip 1 (24), the clamping strip 2 (26) and the hollow support member (27) together. The hot pressing temperature is 85-95°C, the hot pressing pressure is 2-4MPa, the number of hot pressing times is 1-3 times, and the hot pressing time for each time is 2-5min.

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