Ultrathin moisture-permeable-proof knitted fabric and preparation method thereof

Abstract

The invention relates to the technical field of textile, in particular to an ultrathin moisture-permeable-proof knitted fabric and a preparation method thereof.The ultrathin moisture-permeable-proof knitted fabric comprises an anti-permeable layer, a water repellent layer connected to the bottom of the anti-permeable layer and a moisture absorption layer connected to the top of the anti-permeable layer; the ultrathin moisture-permeable-proof knitted fabric is woven by a double-sided circular knitting machine; the anti-penetration layer is formed by knitting of an upper dial of two needles and a lower needle cylinder of four needles from top to bottom in a mode that six paths form a cycle, wherein the first path comprises an upper dial looping weave, an upper dial floating thread weave, a lower needle cylinder looping weave, a lower needle cylinder floating thread weave, a lower needle cylinder looping weave and a lower needle cylinder floating thread weave in sequence; the second path comprises an upper dial floating thread stitch, an upper dial tuck stitch, a lower needle cylinder looping stitch, a lower needle cylinder floating thread stitch, a lower needle cylinder floating thread stitch and a lower needle cylinder looping stitch in sequence; the ultrathin anti-moisture-permeability knitted fabric has remarkable advantages in the aspects of moisture permeability prevention, moisture absorption and air permeability, color and appearance performance and the like, and has wide market value.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to an ultra-thin moisture-proof knitted fabric and a preparation method thereof. Background Art

[0002] With the improvement of people's living standards and the increasing demand for clothing functionality, the demand for light, thin, and moisture-proof knitted fabrics has become increasingly urgent in many fields such as outdoor sports, sports and leisure, and daily wear.

[0003] Traditional knitted fabrics often have many shortcomings in meeting the function of anti-moisture permeability. Some ordinary fabrics cannot effectively block the penetration of external moisture due to simple structural design and improper yarn selection. When they come into contact with water or human sweat, they are prone to getting wet, causing discomfort to the wearer and affecting the warmth retention and aesthetics of the clothing. In some high-performance fabric fields, although there are some anti-moisture permeability products, they often have problems such as large thickness and poor comfort. Some waterproof and breathable fabrics achieve their functions through a multi-layer composite structure. Although they have certain effects in waterproofing, due to the large number of layers, the overall thickness of the fabric affects the softness and flexibility of the clothing, and it is difficult to meet people's needs for light, comfortable and anti-moisture permeability.

[0004] Therefore, providing a device that can effectively achieve ultra-thin anti-moisture permeability function has important market value. Summary of the invention

[0005] The purpose of the present invention is to provide an ultra-thin moisture-proof knitted fabric and a preparation method thereof in view of the deficiencies in the prior art;

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides an ultra-thin moisture-proof knitted fabric, wherein the fabric body comprises: an anti-permeability layer, a water-repellent layer connected to the bottom of the anti-permeability layer, and a moisture-absorbing layer connected to the top of the anti-permeability layer;

[0008] The ultra-thin moisture-proof knitted fabric is woven by a double-sided large circular knitting machine; the moisture-proof layer is knitted from top to bottom by a two-needle upper needle disc and a four-needle lower needle cylinder in a six-way one-cycle:

[0009] The first route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization;

[0010] The second route is: upper needle disc floating thread organization, upper needle disc tucking organization, lower needle cylinder tucking organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder tucking organization;

[0011] The third route is: upper needle disk floating thread organization, upper needle disk circle organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization;

[0012] The fourth route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization;

[0013] The fifth route is: upper needle disc floating thread organization, upper needle disc tucking organization, lower needle cylinder tucking organization, lower needle cylinder tucking organization, lower needle cylinder tucking organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization;

[0014] The sixth route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization;

[0015] The anti-penetration layer is woven from anti-penetration polyester yarn;

[0016] Wherein, the moisture-absorbing layer is a loop-forming tissue, and the water-resistant layer is a gathering loop tissue.

[0017] Furthermore, the first yarn used in the moisture absorption layer is a blend of 50D / 36F cationic polyester, hydrophilic modified polyester yarn, and cotton yarn.

[0018] Furthermore, the second yarn used in the water-repellent layer is a blend of water-repellent polyester yarn and nylon.

[0019] Furthermore, the anti-permeability layer uses cotton yarn as a connecting yarn to connect the water-repellent layer and the moisture-absorbing layer to form the ultra-thin anti-moisture permeability knitted fabric.

[0020] A method for preparing an ultra-thin moisture-proof knitted fabric as described above comprises the following steps:

[0021] Step 1: blending the 50D / 36F cationic polyester, the hydrophilic modified polyester yarn, and the cotton yarn to obtain the first yarn, and blending the water-repellent polyester yarn with nylon to obtain the second yarn;

[0022] Step 2: feeding the anti-permeability polyester yarn, the first yarn, and the second yarn into a double-sided circular knitting machine to weave the ultra-thin anti-moisture permeability knitted fabric;

[0023] Step 3: subjecting the ultra-thin moisture-proof knitted fabric to a washing process, a pre-embrane shaping process and a polyester dyeing process in sequence to obtain the fabric.

[0024] Furthermore, the temperature of the shaping machine in the predetermined embryo shaping process is 160°C-180°C, and the speed is 20m / min-30m / min.

[0025] Furthermore, the polyester dyeing process comprises the following steps:

[0026] Step S1, inject soft water into the dyeing machine, add 1g / L glacial acetic acid, and then add the appropriate disperse dye. Heat up to 130°C at a rate of 1.2°C per minute. This heating rate can make the dye more evenly adsorbed on the polyester fiber and reduce the risk of color flower. Keep warm at 130°C for 45 minutes to ensure that the dye is fully penetrated. Then cool down to 80°C at a rate of 1.2°C per minute, add 1.5g / L of caustic soda and 3g / L of insurance powder, and keep for 25 minutes to promote the fixation and leveling of the dye. Finally, cool down to 55°C at a rate of 1.2°C per minute, cut and sample for color matching, drain after confirming that the color is accurate, and wash twice to completely remove floating color and residual auxiliaries.

[0027] Step S2: refill the dyeing machine with soft water, add 1.5g / L reducing cleaning agent, 3g / L soda ash, and 3g / L hydrosulfite, heat to 80°C at a heating rate of 1.2°C per minute, and keep warm for 25 minutes to effectively remove impurities and unfixed dyes remaining in the dyeing process and improve dye fastness. Then cool to 55°C, cut and match the color, drain after the color is correct, and wash twice again to ensure the fabric is clean.

[0028] Step S3, inject soft water into the dyeing machine again, first add 1.0g / L of dyeing acid to adjust the pH value of the dye bath, then add 2.5g / L of moisture absorption and perspiration finishing agent to enhance the moisture absorption and breathability of the fabric, and 0.8g / L of cleaning tank oligomer dispersing removal agent to prevent oligomers from depositing on the fabric. Raise the temperature to 80°C at a rate of 1.2°C per minute, and keep warm for 35 minutes to allow the finishing agent to fully act on the fabric fibers. Then cool down to 55°C and cut the pieces for color matching. After accurate drainage, wash the fabric twice and remove it from the tank. At this time, the fabric not only has bright and uniform color, but also has good moisture absorption and perspiration and anti-moisture permeability properties. The present invention adopts the above technical scheme, and compared with the prior art, it has the following technical effects:

[0029] The three-layer structural design of the present invention, namely the anti-permeability layer, the water-repellent layer and the moisture-absorbing layer, cooperate with each other to form an efficient anti-moisture permeability system. The water-repellent layer adopts a second yarn blended with water-repellent polyester yarn and nylon and is presented in a tucked loop structure, which further enhances the overall water-repellent ability of the fabric. The ultra-thin anti-moisture permeability knitted fabric of the present invention has significant advantages in anti-moisture permeability performance, moisture absorption and breathability performance, color appearance performance, etc., and has broad market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of a triangular arrangement of the present invention;

[0031] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0032] The reference numerals in the accompanying drawings are:

[0033] Anti-penetration layer, 1; Water-resistant layer, 2; Moisture-absorbing layer, 3 Anti-penetration layer. DETAILED DESCRIPTION

[0034] The specific embodiments of the present invention will be described in detail below.

[0035] Unless otherwise defined, technical or scientific terms used in the claims and the specification shall have the common meanings understood by persons having ordinary skills in the technical field to which the present invention belongs.

[0036] The words "include" or similar words used in the patent application specification and claims of the present invention mean that the items appearing before "include" include the items listed after "include" or their equivalents, and do not exclude other items.

[0037] The numerical values ​​mentioned in the present invention include all numerical values ​​that increase from low to high by one unit, assuming that there are at least two units between any lower value and the higher value. For example, if a component or a physical quantity is said to be from 1 to 100, 10 to 90 is more preferred, and 20 to 80 is the most preferred, it is intended to express that values ​​such as 5 to 95, 14 to 76, 23 to 67, 32 to 58, 41 to 49 are clearly listed in this specification; for values ​​less than 1, 0.0001, 0.001, 0.01 or 0.1 are considered to be more suitable as a unit. The above examples are for illustrative purposes only. In fact, all numerical combinations between the lowest value and the highest value listed are deemed to be clearly listed in this specification in a similar manner.

[0038] Example 1

[0039] This embodiment provides an ultra-thin moisture-proof knitted fabric, characterized in that the fabric body comprises: an anti-permeability layer 1, a water-repellent layer 2 connected to the bottom of the anti-permeability layer 1, and a moisture-absorbing layer 3 connected to the top of the anti-permeability layer 1;

[0040] The ultra-thin moisture-proof knitted fabric is woven by a double-sided large circular knitting machine; the moisture-proof layer 1 is knitted from top to bottom by a two-needle upper needle plate and a four-needle lower needle cylinder in a six-way one-cycle: wherein,

[0041] The first route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization;

[0042] The second route is: upper needle disc floating thread organization, upper needle disc tucking organization, lower needle cylinder tucking organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder tucking organization;

[0043] The third route is: upper needle disk floating thread organization, upper needle disk circle organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization;

[0044] The fourth route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization;

[0045] The fifth route is: upper needle disc floating thread organization, upper needle disc tucking organization, lower needle cylinder tucking organization, lower needle cylinder tucking organization, lower needle cylinder tucking organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization;

[0046] The sixth route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization;

[0047] The anti-penetration layer 1 is woven with anti-penetration polyester yarn;

[0048] Wherein, the moisture-absorbing layer 3 is a loop-forming structure, and the water-resistant layer 2 is a gathering structure.

[0049] The first yarn used in the hygroscopic layer 3 is a blend of 50D / 36F cationic polyester, hydrophilic modified polyester yarn, and cotton yarn; cationic polyester can give the fabric special dyeing properties, and after it is blended with hydrophilic modified polyester yarn and cotton yarn, the comprehensive performance is improved. Cotton yarn has natural hydrophilicity and good moisture absorption capacity, and can quickly absorb sweat on the surface of human skin, providing the fabric with initial moisture absorption power. The hydrophilic modified polyester yarn further enhances the overall hydrophilicity while maintaining the excellent properties of the polyester fiber, so that the fabric can absorb and diffuse moisture more efficiently, accelerate the transfer speed of sweat from the skin surface to the external environment, effectively improve the comfort of wearing, and avoid the stuffiness and discomfort caused by sweat accumulation. .

[0050] The second yarn used in the water-resistant layer 2 is a blend of water-repellent polyester yarn and nylon.

[0051] The anti-permeability layer 1 uses cotton yarn as a connecting yarn to connect the water-repellent layer 2 and the moisture-absorbing layer 3 to form the ultra-thin anti-moisture permeability knitted fabric.

[0052] Example 2

[0053] A method for preparing an ultra-thin moisture-proof knitted fabric comprises the following steps:

[0054] Step 1: blending the 50D / 36F cationic polyester, the hydrophilic modified polyester yarn, and the cotton yarn to obtain the first yarn, and blending the water-repellent polyester yarn with nylon to obtain the second yarn;

[0055] Step 2: feeding the anti-permeability polyester yarn, the first yarn, and the second yarn into a double-sided circular knitting machine to weave the ultra-thin anti-moisture permeability knitted fabric;

[0056] Step 3: subjecting the ultra-thin moisture-proof knitted fabric to a washing process, a pre-embrane shaping process and a polyester dyeing process in sequence to obtain the fabric.

[0057] The temperature of the shaping machine in the predetermined embryo shaping process is 160°C and the speed is 20m / min.

[0058] Wherein, the polyester dyeing process comprises the following steps:

[0059] Step S1, inject soft water into the dyeing machine, add 1g / L glacial acetic acid, and then add the appropriate disperse dye. Heat up to 130°C at a rate of 1.2°C per minute. This heating rate can make the dye more evenly adsorbed on the polyester fiber and reduce the risk of color flower. Keep warm at 130°C for 45 minutes to ensure that the dye is fully penetrated. Then cool down to 80°C at a rate of 1.2°C per minute, add 1.5g / L of caustic soda and 3g / L of insurance powder, and keep for 25 minutes to promote the fixation and leveling of the dye. Finally, cool down to 55°C at a rate of 1.2°C per minute, cut and sample for color matching, drain after confirming that the color is accurate, and wash twice to completely remove floating color and residual auxiliaries.

[0060] Step S2: refill the dyeing machine with soft water, add 1.5g / L reducing cleaning agent, 3g / L soda ash, and 3g / L hydrosulfite, heat to 80°C at a heating rate of 1.2°C per minute, and keep warm for 25 minutes to effectively remove impurities and unfixed dyes remaining in the dyeing process and improve dye fastness. Then cool to 55°C, cut and match the color, drain after the color is correct, and wash twice again to ensure the fabric is clean.

[0061] Step S3, inject soft water into the dyeing machine again, first add 1.0g / L dyeing acid to adjust the pH value of the dye bath, then add 2.5g / L moisture absorption and perspiration finishing agent to enhance the moisture absorption and breathability of the fabric, and 0.8g / L cleaning tank oligomer dispersion remover to prevent oligomers from depositing on the fabric. Raise the temperature to 80°C at a rate of 1.2°C per minute, keep warm for 35 minutes, so that the finishing agent can fully act on the fabric fiber. Then cool down to 55°C, cut and match the color, drain after accurate, wash the water twice and take the fabric out of the tank. At this time, the fabric is not only bright and uniform in color, but also has good moisture absorption and perspiration and anti-moisture permeability properties.

[0062] The three-layer structural design of the present invention, namely the anti-permeability layer, the water-repellent layer and the moisture-absorbing layer, cooperate with each other to form an efficient anti-moisture permeability system. The water-repellent layer adopts a second yarn blended with water-repellent polyester yarn and nylon and is presented in a tucked loop structure, which further enhances the overall water-repellent ability of the fabric. The ultra-thin anti-moisture permeability knitted fabric of the present invention has significant advantages in anti-moisture permeability performance, moisture absorption and breathability performance, color appearance performance, etc., and has broad market value.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-thin moisture-proof knitted fabric, characterized in that: The fabric body comprises: an anti-permeability layer (1), a water-repellent layer (2) connected to the bottom of the anti-permeability layer (1), and a moisture-absorbing layer (3) connected to the top of the anti-permeability layer (1); The ultra-thin moisture-proof knitted fabric is knitted using a double-sided circular knitting machine; the moisture-proof layer (1) is knitted from top to bottom by a two-needle upper needle disc and a four-needle lower needle cylinder in a six-way one-cycle: wherein, The first route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization; The second route is: upper needle disc floating thread organization, upper needle disc tucking organization, lower needle cylinder tucking organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder tucking organization; The third route is: upper needle disk floating thread organization, upper needle disk circle organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization; The fourth route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization; The fifth route is: upper needle disc floating thread organization, upper needle disc tucking organization, lower needle cylinder tucking organization, lower needle cylinder tucking organization, lower needle cylinder tucking organization, lower needle cylinder floating thread organization, lower needle cylinder floating thread organization; The sixth route is: upper needle disc circle organization, upper needle disc floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization, lower needle cylinder circle organization, lower needle cylinder floating thread organization; The anti-penetration layer (1) is woven from anti-penetration polyester yarn; Wherein, the moisture-absorbing layer (3) is a loop-forming structure, and the water-resistant layer (2) is a tuck-loop structure.

2. The ultra-thin moisture-proof knitted fabric according to claim 1, characterized in that: The first yarn used in the moisture absorbing layer (3) is a blend of 50D / 36F cationic polyester, hydrophilic modified polyester yarn, and cotton yarn.

3. The ultra-thin moisture-proof knitted fabric according to claim 1, characterized in that: The second yarn used in the water-repellent layer (2) is a blend of water-repellent polyester yarn and nylon.

4. The ultra-thin moisture-proof knitted fabric according to claim 1, characterized in that: The anti-permeability layer (1) uses cotton yarn as a connecting yarn to connect the water-repellent layer (2) and the moisture-absorbing layer (3) to form the ultra-thin anti-moisture permeability knitted fabric.

5. A method for preparing an ultra-thin moisture-proof knitted fabric as claimed in claims 1-4, characterized in that: The following steps are involved: Step 1: blending the 50D / 36F cationic polyester, the hydrophilic modified polyester yarn, and the cotton yarn to obtain the first yarn, and blending the water-repellent polyester yarn with nylon to obtain the second yarn; Step 2: feeding the anti-permeability polyester yarn, the first yarn, and the second yarn into a double-sided circular knitting machine to weave the ultra-thin anti-moisture permeability knitted fabric; Step 3: subjecting the ultra-thin moisture-proof knitted fabric to a washing process, a pre-embrane shaping process and a polyester dyeing process in sequence to obtain the fabric.

6. The method for preparing an ultra-thin moisture-proof knitted fabric according to claim 5, characterized in that: The temperature of the shaping machine in the predetermined embryo shaping process is 160° C.-180° C., and the speed is 20 m / min-30 m / min.

7. The method for preparing an ultra-thin moisture-proof knitted fabric according to claim 5, characterized in that: The polyester dyeing process comprises the following steps: Step S1, inject soft water into the dyeing machine, add 1g / L glacial acetic acid, and then add the appropriate disperse dye. Heat up to 130°C at a rate of 1.2°C per minute. This heating rate can make the dye more evenly adsorbed on the polyester fiber and reduce the risk of color flower. Keep warm at 130°C for 45 minutes to ensure that the dye is fully penetrated. Then cool down to 80°C at a rate of 1.2°C per minute, add 1.5g / L of caustic soda and 3g / L of insurance powder, and keep for 25 minutes to promote the fixation and leveling of the dye. Finally, cool down to 55°C at a rate of 1.2°C per minute, cut and sample for color matching, drain after confirming that the color is accurate, and wash twice to completely remove floating color and residual auxiliaries. Step S2: refill the dyeing machine with soft water, add 1.5g / L reducing cleaning agent, 3g / L soda ash, and 3g / L hydrosulfite, heat to 80°C at a heating rate of 1.2°C per minute, and keep warm for 25 minutes to effectively remove impurities and unfixed dyes remaining in the dyeing process and improve dyeing fastness. Then cool to 55°C, cut and match the color, drain after the color is correct, and wash twice again to ensure the fabric is clean. Step S3, inject soft water into the dyeing machine again, first add 1.0g / L dyeing acid to adjust the pH value of the dye bath, then add 2.5g / L moisture absorption and perspiration finishing agent to enhance the moisture absorption and breathability of the fabric, and 0.8g / L cleaning tank oligomer dispersion remover to prevent oligomers from depositing on the fabric. Raise the temperature to 80°C at a rate of 1.2°C per minute, keep warm for 35 minutes, so that the finishing agent can fully act on the fabric fiber. Then cool down to 55°C, cut and match the color, drain after accurate, wash the water twice and take the fabric out of the tank. At this time, the fabric is not only bright and uniform in color, but also has good moisture absorption and perspiration and anti-moisture permeability properties.

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