A concave-convex three-layer fabric, a manufacturing method and application thereof

Abstract

The present application relates to a new type of concave-convex three-layer fabric and its manufacturing method and application, the concave-convex three-layer fabric includes inner layer and outer layer and several middle layers arranged between the inner layer and the outer layer, the middle layer includes limiting piece one and limiting piece two arranged on the opposite side of the inner layer and the outer layer respectively, and the support piece is clamped between the limiting piece one and the limiting piece two, the two mutually adhered compression parts and the middle part of the support piece are fixed by heat pressing and bonding, and the structure improvement of groove body two and limiting clamping strip can improve the tear resistance of the concave-convex three-layer fabric, the edges of the inner layer, the outer layer and the middle layer are locked by sewing to keep the first end and the tail end of the groove body one and the cavity one connected with the outside, so as to be used as a breathable fabric, the edges of the inner layer, the outer layer and the middle layer are locked by heat pressing to make the first end and the tail end of the groove body one and the cavity one form a seal, so as to be used as a down jacket fabric or a warm fabric.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of clothing fabric, and particularly relates to a novel concave-convex three-layer fabric and a manufacturing method and application thereof. BACKGROUND

[0002] Down jackets need to withstand various complex environments and external forces as winter outdoor clothing, and particularly emphasize tear resistance, warmth, and anti-drilling properties. The tear resistance refers to the ability of the fabric to resist tearing or damage when subjected to external forces, which is directly related to the service life and durability of the down jacket. The warmth of the down jacket is one of the important indicators to measure its performance, which includes the warmth of the fabric itself and the warmth of the fabric with good anti-drilling effect to better prevent the leakage of down and the resulting warmth. In order to meet the use requirements of down jackets in outdoor environments, improve their service life, warmth performance, and reduce the occurrence of down leakage, we provide a concave-convex three-layer fabric that simultaneously has good tear resistance, warmth, and anti-drilling properties. SUMMARY

[0003] The purpose of the present application is to provide a novel concave-convex three-layer fabric and a manufacturing method and application thereof to solve the above problems.

[0004] The present application achieves the above-mentioned purposes through the following technical solutions:

[0005] A novel concave-convex three-layer fabric includes an inner layer and an outer layer, and a plurality of middle layers arranged between the inner layer and the outer layer.

[0006] The middle layer includes a limiting piece one and a limiting piece two arranged on opposite sides of the inner layer and the outer layer, respectively, and a support piece clamped between the limiting piece one and the limiting piece two.

[0007] The limiting piece one and the limiting piece two are each composed of two symmetrically arranged support bars, and a groove one for clamping the end of the support piece is formed between the two support bars. A groove two is formed on each support bar. The support piece is provided with a limiting clamping strip corresponding to the groove two and clamped inside the groove two. The end of the support piece is spaced from the inner layer or the outer layer. The bottom of the support bar extends downward to form a pressing part. The two pressing parts on the limiting piece one and the limiting piece two are symmetrically fixed by heat pressing and bonding. A cavity one is formed between the limiting clamping strip and the pressing part.

[0008] As a further optimization scheme of the present application, the middle layer is made of polyamide material or polypropylene material.

[0009] As a further optimization scheme of the present application, the middle layer has a tightening shape in the middle and an expanding shape at both ends.

[0010] As a further optimization scheme of the present application, two mutually adhered compression parts are heat-pressed and adhered to one side of the middle part of the support.

[0011] As a further optimization scheme of the present application, the support strips of two adjacent middle layers are mutually adhered to form a cavity two.

[0012] A manufacturing method of a novel concave-convex three-layer fabric, the specific steps are as follows:

[0013] Step one: integrally forming extrusion limiting piece one and limiting piece two on the inner layer and the outer layer through an extrusion die, wherein the limiting piece one and the limiting piece two are both provided with a groove two and a compression part, and the support piece and the limiting clamping strip are integrally formed through the extrusion die;

[0014] Step two: placing the inner layer and the outer layer with the limiting piece one and the limiting piece two on one side, and heat-pressing and adhering the compression parts symmetrically arranged on the limiting piece one and the limiting piece two after the compression parts are overlapped;

[0015] Step three: inserting the support piece between the limiting piece one and the limiting piece two, and inserting the limiting clamping strip into the groove two;

[0016] Step four: heat-pressing the compression parts symmetrically arranged on the limiting piece one and the limiting piece two, or heat-pressing the compression parts symmetrically arranged on the limiting piece one and the limiting piece two and the middle part of the support piece, to obtain the concave-convex three-layer fabric.

[0017] As a further optimization scheme of the present application, in step two, the heat-pressing temperature is 135-145 DEG C, the heat-pressing pressure is 3-5 MPa, the heat-pressing times are 5-7 times, and the heat-pressing time of each time is 2-4 min.

[0018] As a further optimization scheme of the present application, in step four, the heat-pressing temperature is 155-165 DEG C, the heat-pressing pressure is 5-8 MPa, the heat-pressing times are 4-6 times, and the heat-pressing time of each time is 1-3 min.

[0019] Application of a novel concave-convex three-layer fabric as a down jacket fabric, a warm-keeping fabric and a breathable fabric

[0020] As a further optimization scheme of the present application, when the concave-convex three-layer fabric is used as a down jacket fabric and a warm-keeping fabric, the edges of the inner layer, the outer layer and the middle layer are locked by heat-pressing to seal the first end and the second end of the groove one and the cavity one.

[0021] When the concave-convex three-layer fabric is used as a breathable fabric, the edges of the inner layer, the outer layer and the middle layer are locked by sewing to keep the first end and the second end of the groove one and the cavity one in communication with the outside.

[0022] The present application has the advantages that:

[0023] 1) The present application can improve the tear resistance of the concave-convex three-layer fabric through the improved design of the structure of the two mutually adhered compression portions and the middle part of the support and the side heat pressing and adhering fixation of the middle part of the support and the structure improvement design of the groove two and the limiting clamping strip.

[0024] 2) The present application adopts the sewing method to lock the edges of the inner layer, the outer layer and the middle layer to keep the first end and the tail end of the groove one and the cavity one in communication with the outside, and when the concave-convex three-layer fabric is pressed, the internal gas of the concave-convex three-layer fabric can be quickly exchanged with the external gas, thereby realizing good ventilation effect and being convenient for use as a breathable fabric, and providing convenience for the user.

[0025] 3) The present application adopts the heat pressing method to lock the edges of the inner layer, the outer layer and the middle layer to form a seal at the first end and the tail end of the groove one and the cavity one, and in combination with the structure improvement design of the two mutually adhered compression portions and the middle part of the support and the side heat pressing and adhering fixation of the middle part of the support and the groove two and the limiting clamping strip, the warmth retention performance and the anti-drilling performance of the concave-convex three-layer fabric can be significantly improved, and the concave-convex three-layer fabric can be used as a down jacket fabric or a warmth retention fabric to better resist cold. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a cross-sectional view of the concave-convex three-layer fabric of the present application.

[0027] Figure 2 is a partial schematic view of the present application. Figure 1

[0028] Figure 3 is a cross-sectional view of the middle layer of the concave-convex three-layer fabric of the present application.

[0029] In the figure: 1, inner layer; 2, outer layer; 3, middle layer; 31, limiting part one; 32, limiting part two; 33, support; 34, groove one; 35, groove two; 36, limiting clamping strip; 37, cavity one; 38, cavity two; 39, compression portion. DETAILED DESCRIPTION

[0030] It is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application, and those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0031] I. Materials

[0032] 1) In the present application, the inner layer (1) is a commercially available 180T spring yarn fabric, and the outer layer (2) is a commercially available 240T spring yarn fabric. ​

[0033] Unless otherwise specified, the methods used in this example are conventional methods known to those skilled in the art, and the reagents and other materials used are commercially available products unless otherwise specified.

[0034] 2. Methods

[0035] In order to explore the effects of different structural designs of the middle layer (3) on the tear resistance, warmth retention and down-proof performance of the concave-convex three-layer fabric, the technical solutions of the following Examples 1-2 and Comparative Examples 1-2 were designed, as shown below:

[0036] Example 1

[0037] like Figures 1-3 As shown, a novel concave-convex three-layer fabric comprises an inner layer 1, an outer layer 2 and a plurality of middle layers 3 arranged between the inner layer 1 and the outer layer 2;

[0038] The middle layer 3 includes a first limiting member 31 and a second limiting member 32 respectively provided on opposite sides of the inner layer 1 and the outer layer 2, and a support member 33 clamped between the first limiting member 31 and the second limiting member 32;

[0039] The limiting member 1 31 and the limiting member 2 32 are both composed of two symmetrically arranged support bars, and a groove body 1 34 for clamping the end of the support member 33 is formed between the two support bars. A groove body 2 35 is opened on each of the support bars, and a limiting clamping strip 36 is provided on the support member 33, which corresponds one-to-one with the groove body 2 35 and is used to clamp to the inside of the groove body 2 35. There is a gap between the end of the support member 33 and the inner layer 1 or the outer layer 2. The bottom of the support bar extends downward to form a pressing part 39. The two symmetrical pressing parts 39 on the limiting member 1 31 and the limiting member 2 32 are hot-pressed and fixed, and a cavity 1 37 is formed between the limiting clamping strip 36 and the pressing part 39.

[0040] Preferably, the middle layer 3 is made of polyamide material or polypropylene material.

[0041] Preferably, the middle portion of the middle layer 3 is tightened and both ends are expanded.

[0042] Preferably, the support bars of two adjacent middle layers 3 fit together to form a second cavity 38 .

[0043] like Figure 1 As shown, there is a gap between two adjacent middle layers 3.

[0044] A method for making a novel concave-convex three-layer fabric, the specific steps are as follows:

[0045] Step one: integrally forming extrusion limiting piece one 31 and limiting piece two 32 on inner layer 1 and outer layer 2 through an extrusion die, wherein limiting piece one 31 and limiting piece two 32 are both provided with groove two 35 and pressing part 39, and support piece 33 and limiting clamping strip 36 are integrally formed through the extrusion die;

[0046] Step two: placing inner layer 1 and outer layer 2 with one side of limiting piece one 31 and limiting piece two 32 opposite to each other, and then bonding and fixing the pressing parts 39 symmetrically arranged on limiting piece one 31 and limiting piece two 32 after superimposing and heat pressing treatment;

[0047] The heat pressing treatment temperature is 140±2℃, the heat pressing pressure is 4MPa, the heat pressing times is 6, and the heat pressing time for each time is 3min.

[0048] Step three: inserting support piece 33 between limiting piece one 31 and limiting piece two 32, and inserting limiting clamping strip 36 into groove two 35;

[0049] Step four: obtaining concave-convex three-layer fabric after heat pressing treatment on the pressing parts 39 symmetrically arranged on limiting piece one 31 and limiting piece two 32;

[0050] The heat pressing treatment temperature is 162±2℃, the heat pressing pressure is 7MPa, the heat pressing times is 5, and the heat pressing time for each time is 2min.

[0051] Example 2

[0052] In this embodiment, the difference from example 1 is that in this application, two mutually bonded pressing parts 39 are heat pressed and bonded with the middle side of support piece 33, and the rest are consistent with example 1.

[0053] A manufacturing method of a new concave-convex three-layer fabric, the specific steps are as follows:

[0054] Step one: integrally forming extrusion limiting piece one 31 and limiting piece two 32 on inner layer 1 and outer layer 2 through an extrusion die, wherein limiting piece one 31 and limiting piece two 32 are both provided with groove two 35 and pressing part 39, and support piece 33 and limiting clamping strip 36 are integrally formed through the extrusion die;

[0055] Step two: placing inner layer 1 and outer layer 2 with one side of limiting piece one 31 and limiting piece two 32 opposite to each other, and then bonding and fixing the pressing parts 39 symmetrically arranged on limiting piece one 31 and limiting piece two 32 after superimposing and heat pressing treatment;

[0056] The heat pressing treatment temperature is 140±2℃, the heat pressing pressure is 4MPa, the heat pressing times is 6, and the heat pressing time for each time is 3min.

[0057] Step three: insert the support 33 between the limiting member one 31 and the limiting member two 32, and insert the limiting clamping strip 36 into the groove two 35;

[0058] Step four: after heat pressing the pressing parts 39 symmetrically arranged on the limiting member one 31 and the limiting member two 32 and the middle part of the support 33, a concave-convex three-layer fabric is obtained.

[0059] The temperature of the heat pressing is 162±2℃, the heat pressing pressure is 7MPa, and the heat pressing times is 5, and the heat pressing time of each time is 2min.

[0060] Comparative Example 1

[0061] In this comparative example, the difference from Example 1 is that the limiting member one 31 and the limiting member two 32 do not have the groove two 35, and the support 33 does not have the limiting clamping strip 36.

[0062] Comparative Example 2

[0063] In this comparative example, the difference from Example 2 is that the limiting member one 31 and the limiting member two 32 do not have the groove two 35, and the support 33 does not have the limiting clamping strip 36.

[0064] When the concave-convex three-layer fabric obtained by Examples 1-2 and Comparative Examples 1-2 is used as a breathable fabric, the edges of the inner layer 1, the outer layer 2, and the middle layer 3 are locked by sewing to keep the first and last ends of the groove one 34 and the cavity one 37 in communication with the outside.

[0065] It should be noted that when the concave-convex three-layer fabric locked by this method is used, because the first and last ends of the groove one 34 and the cavity one 37 are in communication with the outside, when the concave-convex three-layer fabric is pressed, the gas inside the concave-convex three-layer fabric can quickly exchange with the outside gas, thereby achieving good ventilation effect and providing convenience for the user.

[0066] When the concave-convex three-layer fabric obtained by Examples 1-2 and Comparative Examples 1-2 is used as a down jacket fabric or a warm-keeping fabric, the edges of the inner layer 1, the outer layer 2, and the middle layer 3 are locked by heat pressing to seal the first and last ends of the groove one 34 and the cavity one 37.

[0067] III. Performance Test Experiment

[0068] Tear resistance test:

[0069] Experimental equipment: Q800 dynamic mechanical analyzer (DMA, TA Instruments Co., Ltd.), experimental method, taking the concave-convex three-layer fabric of the above-mentioned examples 1-2 and comparative examples 1-2 as samples, the sample specification is a long strip of 30x10mm, the sample is placed in a tensile clamp, one end is fixed, the other end can move with the clamp, the temperature is 20℃±2℃, the frequency is set to 1Hz, the stress is gradually increased from 0 value at a speed of 3MPa / s, the sample strain change is recorded until the sample breaks, and the stress at the breaking point is taken as the tensile strength of the sample.

[0070] Table 1 tear resistance test experimental data record table of concave-convex three-layer fabric of examples 1-2 and comparative examples 1-2

[0071]

[0072] Note: The above data are verified by variance.

[0073] Experimental conclusion: According to the data in table 1, it can be known that the concave-convex three-layer fabric prepared according to the mode of example 2 has the best tear resistance, which shows that the heat pressing and bonding of the two mutually bonded pressing parts 39 and the middle side of the supporting piece 33 can better improve the tear resistance of the fabric.

[0074] In addition, comparing the experimental data of comparative examples 1-2 with the experimental data of examples 1-2 can know that the structure improvement and design of the groove body two 35 and the limiting clamping strip 36 can further improve the tear resistance of the concave-convex three-layer fabric.

[0075] Anti-pilling performance: according to the national standard GB / T12705.2-2009 "textile fabric anti-pilling test method part 2: tumbling box method", the anti-pilling performance of the fabric is tested, when the pilling root number of the fabric is >15, the anti-pilling performance is poor; 5

[0076] The warm-keeping performance test is carried out according to the determination method of GB / T35762-2017 "textile heat transfer performance test method flat plate method", and the experimental data are calculated and recorded.

[0077] Table 2 warm-keeping performance and anti-pilling performance test experimental data record table of concave-convex three-layer fabric of examples 1-2 and comparative examples 1-2

[0078]

[0079] The experimental conclusion is that according to the data in Table 2, the warmth-keeping performance and the anti-drilling performance of the concave-convex three-layer fabric prepared according to the mode of Example 2 are the best, therefore, Example 2 is the optimal embodiment, and the improvement of the structure of the two mutually adhered compression bonding portions 39 and the middle one side of the support 33, and the groove body 35 and the limiting clamping strip 36 can improve the warmth-keeping performance and the anti-drilling performance of the concave-convex three-layer fabric, and the concave-convex three-layer fabric can better resist cold when used as a down jacket fabric or a warmth-keeping fabric.

[0080] The above embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A concave-convex three-layer fabric, characterized by: It comprises an inner layer (1), an outer layer (2), and a plurality of middle layers (3) arranged between the inner layer (1) and the outer layer (2); The middle layer (3) comprises a first limiting member (31) and a second limiting member (32) respectively arranged on opposite sides of the inner layer (1) and the outer layer (2), and a supporting member (33) clamped between the first limiting member (31) and the second limiting member (32); The limiting member 1 (31) and the limiting member 2 (32) are both composed of two symmetrically arranged support bars, and a groove body 1 (34) for clamping the end of the support member (33) is formed between the two support bars. A groove body 2 (35) is provided on each of the support bars. The support member (33) is provided with a limiting clamping strip (36) corresponding to the groove body 2 (35) and used to be clamped to the inside of the groove body 2 (35). There is a gap between the end of the support member (33) and the inner layer (1) or the outer layer (2). The bottom of the support bar extends downward to form a pressing portion (39). The two symmetrical pressing portions (39) on the limiting member 1 (31) and the limiting member 2 (32) are fixed by hot pressing, and a cavity 1 (37) is formed between the limiting clamping strip (36) and the pressing portion (39).

2. The concave-convex three-layer fabric according to claim 1, characterized in that: The middle layer (3) is made of polyamide material or polypropylene material.

3. The concave-convex three-layer fabric according to claim 1, characterized in that: The middle portion of the middle layer (3) is in a tightened shape, and both ends are in an expanded shape.

4. The concave-convex three-layer fabric according to claim 3, characterized in that: The two mutually bonded pressing parts (39) are fixed to one side of the middle part of the support member (33) by heat-pressing bonding.

5. The concave-convex three-layer fabric according to claim 1, characterized in that: The support strips of two adjacent middle layers (3) are fitted together to form a second cavity (38).

6. A method for manufacturing the concave-convex three-layer fabric according to any one of claims 1 to 5, characterized in that: The specific steps are as follows: Step 1: integrally forming a first limiting member (31) and a second limiting member (32) on the inner layer (1) and the outer layer (2) through an extrusion die, wherein both the first limiting member (31) and the second limiting member (32) have a second groove body (35) and a pressing portion (39), and integrally forming an extrusion support member (33) and a limiting clip (36) through the extrusion die; Step 2: Place the inner layer (1) and the outer layer (2) with the limiting member 1 (31) and the limiting member 2 (32) facing each other, overlap the symmetrically arranged pressing parts (39) on the limiting member 1 (31) and the limiting member 2 (32), and then bond and fix them after hot pressing; Step 3: Insert the support member (33) between the first limiting member (31) and the second limiting member (32), and insert the limiting clip (36) into the second slot (35); Step 4: The concave-convex three-layer fabric is obtained by hot-pressing the symmetrically arranged pressing parts (39) on the limiting member 1 (31) and the limiting member 2 (32), or hot-pressing the symmetrically arranged pressing parts (39) on the limiting member 1 (31) and the limiting member 2 (32) and the middle part of the supporting member (33).

7. The production method according to claim 6, characterized in that: In step 2, the temperature of the hot pressing treatment is 135-145° C., the hot pressing pressure is 3-5 MPa, the number of hot pressing times is 5-7 times, and the hot pressing time for each time is 2-4 minutes.

8. The production method according to claim 6, characterized in that: In step 4, the temperature of the hot pressing treatment is 155-165° C., the hot pressing pressure is 5-8 MPa, the number of hot pressing times is 4-6 times, and the hot pressing time for each time is 1-3 minutes.

9. Use of the concave-convex three-layer fabric according to any one of claims 1 to 5 as a down jacket fabric, a thermal insulation fabric, and a breathable fabric.

10. The use according to claim 9, characterized in that: When the concave-convex three-layer fabric is used as a down jacket fabric or a thermal insulation fabric, the edges of the inner layer (1), the outer layer (2), and the middle layer (3) are locked by heat pressing to form a seal at both ends of the groove body (34) and the cavity body (37); When the concave-convex three-layer fabric is used as a breathable fabric, the edges of the inner layer (1), the outer layer (2), and the middle layer (3) are locked by sewing to keep the ends of the groove body (34) and the cavity body (37) connected to the outside world.

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