Composite down-filled jean fabric and preparation method thereof

Abstract

According to the composite down-filled denim fabric and the preparation method thereof, denim base cloth is obtained through twill tatting weaving, the denim base cloth has long-term comfortable elasticity and an excellent skin-friendly effect, and after optimization of a process and a treatment solution is combined, the crease resistance and the shrink resistance of the denim fabric are greatly improved; the composite down-filled jean fabric has the advantages that the composite down-filled jean fabric has excellent softness and comfort level and good hand feeling and body feeling, the overall prepared composite down-filled jean fabric has fashion sense of jean fabric, also has excellent heat preservation and heat storage functions of down materials, has remarkable wearing comfort on the whole, is not prone to degumming after being cleaned for multiple times, and has long-term antibacterial performance.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric preparation, and more particularly to a composite down-filled denim fabric and a preparation method thereof. Background Art

[0002] Denim fabric is favored by people for its certain fashionability. However, denim fabric has poor elasticity. After long-term wearing, it is prone to deformation under force, and protrusions, distortion, and even damage will occur on the fabric surface, seriously affecting the aesthetics of the clothing and reducing the service performance of the clothing. In addition, with the improvement of people's living quality, most of the existing denim fabrics are single thin models, unable to achieve the function of keeping warm, and difficult to meet the increasing demands of people for living quality.

[0003] In order to combine the beauty of denim and also have a certain warming effect, in the prior art, a method of combining denim fabric with down is proposed to obtain a composite down-filled denim fabric. However, when applying denim fabric to the preparation of down jackets in the prior art, in the process, conventional adhesives are used to mechanically bond the denim fabric and the down inner liner. After multiple washings, there is also a problem of easy degumming, which in turn affects the quality of the product. In addition, the traditional denim fabric used in the prior art also has problems such as poor elasticity, poor comfort, and easy generation of bacteria after long-term wearing. Therefore, in order to solve one of the above problems, it is of great significance to optimize the overall process. Summary of the Invention

[0004] Based on this, in order to solve the problem that conventional adhesives are used to mechanically bond the denim fabric and the down inner liner, and there is an easy degumming problem after multiple washings, and the traditional denim fabric used in the prior art also has problems such as poor elasticity, poor comfort, and easy generation of bacteria after long-term wearing, the present invention provides a composite down-filled denim fabric and a preparation method thereof. The specific technical solutions are as follows:

[0005] A composite down-filled denim fabric, the composite down-filled denim fabric includes a denim fabric, down, and a conduit cloth, and the denim fabric and the conduit cloth are bonded by a composite adhesive. The conduit cloth can form a cavity, and the down is filled in the cavity.

[0006] In addition, the present invention provides a preparation method of a composite down-filled denim fabric. The preparation method includes the following steps:

[0007] Prepare an adhesive;

[0008] Prepare the denim fabric, then evenly coat the adhesive between the denim fabric and the conduit cloth, perform heat setting, then cut, sew, and wash the finished product, and then fill the down into the cavity formed by the conduit cloth to obtain a composite down-filled denim fabric.

[0009] Further, the pipeline fabric is prepared by combining at least two high-count and high-density fabrics, and a number of cavities with regular dimensions are formed in the pipeline fabric. When sewing, a number of the cavities need to be closed, and after filling with down, the cavities are opened, filled with down, and then the cavities are closed again.

[0010] Further, the preparation of the denim fabric includes the following steps:

[0011] Dyeing, sizing the warp yarns, and weaving the weft yarns through twill weaving to obtain a denim base fabric;

[0012] After subjecting the denim base fabric to desizing, first washing, second washing, third washing, fourth washing, fifth washing, drying, softening treatment, antibacterial treatment, and pre-shrinking treatment by drying, the denim fabric is obtained.

[0013] Further, the conditions for the first washing are: temperature is 70°C to 90°C, time is 3S to 5S; the conditions for the second washing are: temperature is 60°C to 70°C, time is 3S to 5S; the conditions for the third washing are: temperature is 50°C to 60°C, time is 3S to 5S; the conditions for the fourth washing are: temperature is 40°C to 50°C, time is 3S to 5S; the conditions for the fifth washing are: temperature is normal temperature, time is 3S to 5S.

[0014] Further, the softening treatment is: immersing and padding the denim base fabric in a softening treatment solution at a temperature of 25°C to 30°C for 10 min to 20 min, and the softening treatment solution includes bis-amino-terminated polydimethylsiloxane, sodium dodecyl sulfate, and water in a weight ratio of (10 - 20):(7 - 13):(50 - 100).

[0015] Further, the antibacterial treatment is: immersing and padding the denim base fabric in an antibacterial treatment solution at a temperature of 25°C to 45°C for 20 min to 30 min, and the antibacterial treatment solution includes sodium alkyl sulfonate, chitosan, dodecyl glucoside, polyhexamethylene biguanide hydrochloride, and water in a weight ratio of (10 - 17):(7 - 9):(12 - 15):(1 - 7):(50 - 100).

[0016] Further, the coating amount of the adhesive is (8 - 15) g / m2.

[0017] Further, the temperature for heat setting is 100°C to 120°C.

[0018] Further, the composite adhesive includes the following components in parts by weight: 35 to 40 parts of epoxy resin, 20 to 27 parts of blocked isocyanate, 1 to 7 parts of silicone softener, and 1 to 5 parts of silicone quaternary ammonium salt antibacterial agent.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention uses twill weaving to obtain the denim base fabric, which has long-lasting comfortable elasticity and excellent skin-friendly effect. Combined with the water washing process and soft treatment, the wrinkle resistance and shrinkage resistance of the denim fabric are greatly improved, and it also has excellent soft comfort, with good hand feeling and body feeling.

[0021] 2. The present invention uses a compound of sodium alkyl sulfonate, chitosan, dodecyl glucoside, polyhexamethylene biguanide hydrochloride and water as the antibacterial treatment liquid, which can be effectively applied to the denim base fabric and adhere firmly, endowing the denim base fabric with long-lasting antibacterial performance, reducing the number of washes, and also ensuring a certain cleanliness of the composite down-filled denim fabric.

[0022] 3. The present invention provides a specific proportion of epoxy resin, blocked isocyanate, silicone softener and silicone quaternary ammonium salt antibacterial agent as the composite adhesive, which has excellent adhesion firmness. Compared with traditional adhesives, silicone softener and silicone quaternary ammonium salt antibacterial agent are creatively added, reducing the impact of the composite adhesive on the softness of the denim fabric, and further improving the comfort and antibacterial performance of the composite down-filled denim fabric.

[0023] 4. In summary, the composite down-filled denim fabric provided by the present invention combines the fashion sense of denim fabric and also has the excellent heat preservation and heat storage function of down materials. Overall, it has remarkable wearing comfort, the product is not easy to delaminate after multiple washes, and has long-lasting antibacterial performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the denim fabric in Embodiment 1 of the present invention;

[0025] Figure 2 It is a schematic diagram of the composite down-filled denim fabric in Embodiment 1 of the present invention.

[0026] Reference Signs:

[0027] 1. Denim base fabric; 2. Pipe fabric. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] A composite down-filled denim fabric in an embodiment of the present invention, the composite down-filled denim fabric includes a denim fabric, down, and a conduit fabric, and the denim fabric and the conduit fabric are bonded by a composite adhesive, the conduit fabric can form a cavity, and the down is filled in the cavity.

[0031] In addition, the present invention provides a method for preparing a composite down-filled denim fabric, the preparation method includes the following steps:

[0032] Prepare an adhesive;

[0033] Prepare a denim fabric, then evenly coat the adhesive between the denim fabric and the conduit fabric, perform heat setting, then through cutting, sewing, and garment washing, and then fill the down into the cavity formed by the conduit fabric to obtain a composite down-filled denim fabric.

[0034] In one embodiment, the conduit fabric is prepared by combining at least two high-count and high-density fabrics, and the conduit fabric is prepared to form a number of cavities with regular sizes, and when sewing, a number of the cavities need to be closed, waiting to be filled with down, then opening the cavities, filling with down, and then closing the cavities.

[0035] In one embodiment, the conduit fabric has a yarn count specification of p30d x p35d woven into a fully polyester double-layer direct-flushing down fabric, with a small opening channel left on the left between each cavity for horizontal communication. After the fabric is compounded, through cutting, sewing, and garment washing, the down can be flushed through the reserved horizontal channel to make a down jacket / cotton-padded jacket.

[0036] In one embodiment, the preparation of the denim fabric includes the following steps:

[0037] Dye, size the warp yarns, and weave the weft yarns through twill weaving to obtain a denim base fabric;

[0038] Perform desizing, first washing, second washing, third washing, fourth washing, fifth washing, drying, softening treatment, antibacterial treatment, and then drying and pre-shrinking treatment on the denim base fabric to obtain a denim fabric.

[0039] In one embodiment, the conditions for the first water washing are as follows: the temperature is 70°C to 90°C, and the time is 3S to 5S; the conditions for the second water washing are: the temperature is 60°C to 70°C, and the time is 3S to 5S; the conditions for the third water washing are: the temperature is 50°C to 60°C, and the time is 3S to 5S; the conditions for the fourth water washing are: the temperature is 40°C to 50°C, and the time is 3S to 5S; the conditions for the fifth water washing are: the temperature is normal temperature, and the time is 3S to 5S.

[0040] In one embodiment, the softening treatment is as follows: the denim fabric is impregnated and padded in a softening treatment solution at a temperature of 25°C to 30°C for 10 min to 20 min, and the softening treatment solution comprises bis-amino-terminated polydimethylsiloxane, sodium dodecyl sulfate and water in a weight ratio of (10 - 20):(7 - 13):(50 - 100).

[0041] In one embodiment, the antibacterial treatment is as follows: the denim fabric is impregnated and padded in an antibacterial treatment solution at a temperature of 25°C to 45°C for 20 min to 30 min, and the antibacterial treatment solution comprises sodium alkyl sulfonate, chitosan, dodecyl glucoside, polyhexamethylene biguanide hydrochloride and water in a weight ratio of (10 - 17):(7 - 9):(12 - 15):(1 - 7):(50 - 100).

[0042] In one embodiment, the coating amount of the binder is (8 - 15) g / m 2 。

[0043] In one embodiment, the temperature of the heat setting is 100°C to 120°C.

[0044] In one embodiment, the composite binder comprises the following components in parts by weight: 35 to 40 parts of epoxy resin, 20 to 27 parts of blocked isocyanate, 1 to 7 parts of silicone softener and 1 to 5 parts of silicone quaternary ammonium salt antibacterial agent.

[0045] In one embodiment, the preparation method of the composite binder is as follows: epoxy resin, blocked isocyanate, silicone softener and silicone quaternary ammonium salt antibacterial agent are added to a reaction kettle, and under the condition of 65°C to 85°C, stirred at a speed of 350 r / min to 500 r / min for 1 h to 3 h to obtain the composite binder.

[0046] The composite filled-denim fabric prepared by the above scheme has both the fashion sense of the denim fabric and the excellent heat preservation and heat storage function of the down material. Overall, it has remarkable wearing comfort, is not easy to delaminate after multiple washes, and has long-term antibacterial performance.

[0047] The implementation scheme of the present invention will be described in detail below in conjunction with specific embodiments.

[0048] Example 1:

[0049] A preparation method of a composite down-filled denim fabric, the preparation method comprising the following steps:

[0050] By weight, 38 parts of epoxy resin, 23 parts of blocked isocyanate, 5 parts of silicone softener and 3 parts of silicone quaternary ammonium salt antibacterial agent are added to a reaction kettle, and under the condition of 75 °C, stirring treatment is carried out at a rotation speed of 350 r / min for 2 h to obtain a composite binder;

[0051] The warp yarns are dyed, sized, and the weft yarns are woven by twill weaving to obtain a denim base fabric; the denim base fabric is desized at a temperature of 50 °C for 8 s, then subjected to the first water wash at 72 °C for 5 s, then subjected to the second water wash at 65 °C for 4 s, then subjected to the third water wash at 55 °C for 5 s, then subjected to the fourth water wash at 45 °C for 5 s, and finally subjected to the fifth water wash at normal temperature for 4 s. Then the denim base fabric is impregnated and padded in a softening treatment solution at 30 °C for 15 min, and the softening treatment solution comprises bis-amino-terminated polydimethylsiloxane, sodium dodecyl sulfate and water in a weight ratio of 17:11:72; then the denim base fabric is impregnated and padded in an antibacterial treatment solution at 30 °C for 20 min to 30 min, and the antibacterial treatment solution comprises sodium alkyl sulfonate, chitosan, dodecyl glucoside, polyhexamethylene biguanide hydrochloride and water in a weight ratio of 15:7:13:5:100, and then dried and pre-shrunk to obtain a denim fabric;

[0052] Then, according to a coating amount of 15 g / m 2 , the binder is evenly coated between the denim fabric and the pipeline fabric, heat-set at 100 °C, then cut and sewn, and when sewing, a number of regularly sized cavities of the pipeline fabric need to be closed, then the finished product is washed, and then the cavities are opened, the down is filled into the cavities formed by the pipeline fabric, and the cavities are closed again to obtain a composite down-filled denim fabric.

[0053] Example 2:

[0054] A preparation method of a composite down-filled denim fabric, the preparation method comprising the following steps:

[0055] By weight, 39 parts of epoxy resin, 22 parts of blocked isocyanate, 4 parts of silicone softener and 4 parts of silicone quaternary ammonium salt antibacterial agent are added to a reaction kettle, and under the condition of 80 °C, stirring treatment is carried out at a rotation speed of 350 r / min for 2 h to obtain a composite binder;

[0056] Dye the warp yarns, size them, and weave the weft yarns through twill weaving to obtain a denim base fabric; subject the denim base fabric to desizing for 8 s at 50 °C, then perform the first water wash for 5 s at 75 °C, then perform the second water wash for 4 s at 65 °C, then perform the third water wash for 5 s at 55 °C, then perform the fourth water wash for 4 s at 45 °C, and finally perform the fifth water wash for 5 s at room temperature. Then immerse the denim base fabric in a softening treatment solution at 30 °C for padding treatment for 15 min, and the softening treatment solution includes bis-amino-terminated polydimethylsiloxane, sodium dodecyl sulfate, and water in a weight ratio of 15:13:72; then immerse the denim base fabric in an antibacterial treatment solution at 40 °C for padding treatment for 20 min, and the antibacterial treatment solution includes sodium alkyl sulfonate, chitosan, dodecyl glucoside, polyhexamethylene biguanide hydrochloride, and water in a weight ratio of 14:8:14:4:100, and then perform drying and pre-shrinking treatment to obtain a denim fabric;

[0057] Then, at a coating amount of 15 g / m2, uniformly coat the adhesive between the denim fabric and the conduit fabric, perform heat setting at 100 °C, then perform cutting and sewing, and when sewing, it is necessary to close several regularly sized cavities of the conduit fabric. Then perform garment washing, then open the cavities, fill the cavities formed by the conduit fabric with down, and close the cavities again to obtain a composite down-filled denim fabric.

[0058] Example 3:

[0059] A preparation method of a composite down-filled denim fabric, the preparation method comprising the following steps:

[0060] Add 37 parts of epoxy resin, 23 parts of blocked isocyanate, 5 parts of silicone softener, and 5 parts of silicone quaternary ammonium salt antibacterial agent to a reaction kettle, and stir at 85 °C at a speed of 350 r / min for 3 h to obtain a composite adhesive;

[0061] Dye the warp yarns, size them, and weave the weft yarns through twill weaving to obtain a denim base fabric; subject the denim base fabric to desizing for 8 s at 50 °C, then perform the first water wash for 5 s at 75 °C, then perform the second water wash for 4 s at 65 °C, then perform the third water wash for 5 s at 55 °C, then perform the fourth water wash for 4 s at 45 °C, and finally perform the fifth water wash for 5 s at room temperature. Then immerse the denim base fabric in a softening treatment solution at 30 °C for padding treatment for 10 min, and the softening treatment solution comprises bis(amino)-terminated polydimethylsiloxane, sodium dodecyl sulfate, and water in a weight ratio of 16:12:72; then immerse the denim base fabric in an antibacterial treatment solution at 45 °C for padding treatment for 23 min, and the antibacterial treatment solution comprises sodium alkyl sulfonate, chitosan, dodecyl glucoside, polyhexamethylene biguanide hydrochloride, and water in a weight ratio of 12:9:12:7:100, and then perform drying and ironing treatments to obtain a denim fabric;

[0062] Then, at a coating amount of 15 g / m 2 , uniformly coat the adhesive between the denim fabric and the pipe fabric, perform heat setting at 100 °C, then perform cutting and sewing, and when sewing, it is necessary to seal several regularly sized cavities of the pipe fabric. Then perform garment washing, then open the cavities, fill the cavities formed by the pipe fabric with down, and seal the cavities again to obtain a composite down-filled denim fabric.

[0063] Example 4:

[0064] A method for preparing a composite down-filled denim fabric, the preparation method comprising the following steps:

[0065] Add 40 parts of epoxy resin, 25 parts of blocked isocyanate, 7 parts of silicone softener, and 5 parts of silicone quaternary ammonium salt antibacterial agent to a reaction kettle, and stir at 70 °C at a rotation speed of 350 r / mi for 1.5 h to obtain a composite adhesive;

[0066] The warp yarns are dyed, sized, and the weft yarns are woven by twill weaving to obtain a denim base fabric; the denim base fabric is desized at 50°C for 8 s, then undergoes the first water wash, then the second water wash at 65°C for 5 s, then the third water wash at 55°C for 4 s, then the fourth water wash at 45°C for 5 s, and finally the fifth water wash at room temperature for 5 s. Then the denim fabric is impregnated and padded in a softening treatment solution at 25°C for 20 min, and the softening treatment solution includes bis-amino-terminated polydimethylsiloxane, sodium dodecyl sulfate, and water in a weight ratio of 18:10:72; then the denim fabric is impregnated and padded in an antibacterial treatment solution at 30°C for 25 min, and the antibacterial treatment solution includes sodium alkyl sulfonate, chitosan, dodecyl glucoside, polyhexamethylene biguanide hydrochloride, and water in a weight ratio of 15:7:13:5:100, and then dried and pre-shrunk to obtain a denim fabric;

[0067] Then, according to a coating amount of 15 g / m 2 , the adhesive is evenly coated between the denim fabric and the pipe fabric, heat-set at 110°C, then cut and sewn, and when sewing, several regularly sized cavities of the pipe fabric need to be closed, then the finished product is washed, and then the cavities are opened, and down is filled into the cavities formed by the pipe fabric, and the cavities are closed again to obtain a composite down-filled denim fabric.

[0068] Comparative Example 1:

[0069] The difference between Comparative Example 1 and Example 4 is that the silicone softener is not added to the composite adhesive in Comparative Example 1, and the others are the same as in Example 4.

[0070] Comparative Example 2:

[0071] The difference between Comparative Example 2 and Example 4 is that the silicone quaternary ammonium salt antibacterial agent is not added to the composite adhesive in Comparative Example 2, and the others are the same as in Example 4.

[0072] Comparative Example 3:

[0073] The difference between Comparative Example 3 and Example 4 is that chitosan is not added to the antibacterial treatment solution in Comparative Example 3, and the others are the same as in Example 4.

[0074] Comparative Example 4:

[0075] The difference between Comparative Example 4 and Example 4 is that dodecyl glucoside is not added to the antibacterial treatment solution in Comparative Example 4, and the others are the same as in Example 4.

[0076] Comparative Example 5:

[0077] The difference between Comparative Example 5 and Example 4 is that polyhexamethylene biguanide hydrochloride is not added to the antibacterial treatment solution in Comparative Example 5, and the others are the same as in Example 4.

[0078] The performance tests were carried out on the composite down-filled denim fabric samples obtained in Examples 1-4 and the comparative samples of composite down-filled denim fabric obtained in Comparative Examples 1-5. The results are shown in Table 1 below. Among them, antibacterial property: The antibacterial property was detected according to the method disclosed in "GBT20944.3 2008 Evaluation of Antibacterial Properties of Textiles", and the test strain was Escherichia coli, and the antibacterial rate was recorded; after the test, the sample was placed in 5 g / L washing powder, the bath ratio was 1:30, and it was washed for 30 min under standard conditions, then rinsed with clean water, and after repeating the washing 30 times, the antibacterial rate was detected again.

[0079] Table 1: Performance test results

[0080]

[0081]

[0082] It can be seen from the data analysis in Table 1 that the composite adhesive of the present application has excellent adhesion effect, making it not easy for the denim fabric and the pipeline cloth to delaminate, and the compounded composite adhesive has a positive impact on the softness and antibacterial property of the denim fabric. In addition, the optimized antibacterial treatment solution of the present application can endow the denim fabric with excellent antibacterial effect.

[0083] In addition, the down of the composite down-filled denim fabric samples obtained in Examples 1-4 is filled into the cavity formed by the pipeline cloth with regular size, and it is not easy to run off the down. After the washing test, it still has excellent heat preservation performance. On the whole, it has both the fashion sense of the denim fabric and the excellent heat preservation and heat storage function of the down material, wearing comfort, the product is not easy to delaminate after multiple washings, and has long-term antibacterial property, and the product quality is excellent.

[0084] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0085] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A composite down-filled denim fabric, characterized in that: The composite down-filled denim fabric comprises denim fabric, down and duct cloth, and the denim fabric and the duct cloth are bonded by a composite adhesive, the duct cloth can form a cavity, and the down is filled in the cavity.

2. A method for preparing a composite down-filled denim fabric, characterized in that: The preparation method comprises the following steps: preparing an adhesive; Prepare denim fabric, then evenly apply the adhesive between the denim fabric and the pipe cloth, heat-set, and then cut, sew and wash the garment, and then fill the down into the cavity formed by the pipe cloth to obtain a composite down-filled denim fabric.

3. The preparation method according to claim 2, characterized in that: The duct cloth is prepared by combining at least two high-count and high-density fabrics, and the duct cloth is prepared to obtain a plurality of cavities with regular sizes, and the plurality of cavities need to be closed during sewing, and the cavities need to be opened after being filled with down, and closed again after being filled with down.

4. The preparation method according to claim 2, characterized in that: The preparation of the denim fabric comprises the following steps: The warp yarn is dyed and sized, and the weft yarn is woven by twill weaving to obtain the denim base fabric; The denim base fabric is subjected to desizing, first washing, second washing, third washing, fourth washing, fifth washing, drying, softening treatment, antibacterial treatment, drying and pre-shrinking treatment processes to obtain a denim fabric.

5. The preparation method according to claim 4, characterized in that: The conditions for the first water washing are: temperature of 70°C to 90°C, time of 3S to 5S; the conditions for the second water washing are: temperature of 60°C to 70°C, time of 3S to 5S; the conditions for the third water washing are: temperature of 50°C to 60°C, time of 3S to 5S; the conditions for the fourth water washing are: temperature of 40°C to 50°C, time of 3S to 5S; the conditions for the fifth water washing are: temperature of room temperature, time of 3S to 5S.

6. The preparation method according to claim 4, characterized in that: The softening treatment comprises: immersing the denim base in a softening treatment solution at a temperature of 25° C. to 30° C. for 10 to 20 minutes, wherein the softening treatment solution comprises bisamino-terminated polydimethylsiloxane, sodium lauryl sulfate and water in a weight ratio of (10 to 20): (7 to 13): (50 to 100).

7. The preparation method according to claim 4, characterized in that: The antibacterial treatment comprises: immersing the denim base in an antibacterial treatment solution at a temperature of 25°C to 45°C for 20min to 30min, wherein the antibacterial treatment solution comprises sodium alkyl sulfonate, chitosan, dodecyl glucoside, polyhexamethylene biguanide hydrochloride and water in a weight ratio of (10 to 17): (7 to 9): (12 to 15): (1 to 7): (50 to 100).

8. The preparation method according to claim 2, characterized in that: The coating amount of the adhesive is (8-15) g / m2.

9. The preparation method according to claim 7, characterized in that: The temperature of the heat setting is 100°C to 120°C.

10. The preparation method according to claim 2, characterized in that: The composite adhesive comprises the following components in parts by weight: 35 to 40 parts of epoxy resin, 20 to 27 parts of blocked isocyanate, 1 to 7 parts of organic silicon softener and 1 to 5 parts of organic silicon quaternary ammonium salt antibacterial agent.

Images