Moisture-absorbing, sweat-releasing and sun-proof fluorescent knitted fabric

Abstract

The invention relates to the technical field of fabrics, and discloses a moisture-absorbing and sweat-releasing anti-sunshine fluorescent color knitted fabric, which comprises a surface layer and a bottom layer, the surface layer and the bottom layer are interwoven to form the knitted fabric with an upper-lower two-layer structure, the surface layer comprises cation absorbing and discharging polyester fibers, and the bottom layer comprises polyethylene water-repellent fibers. The knitted fabric is soaked in an anti-ultraviolet agent finishing solution in one bath in a dyeing solution during dyeing and is continuously soaked in a light fastness improver finishing solution during shaping, dye in the dyeing solution is fluorescent dye, an upper-layer and lower-layer weaving structure is interwoven, water is quickly guided to the surface through water repellency on one side, and the water is guided to the surface to be quickly evaporated through a hydrophilic siphon effect on the other side, so that the fabric is formed. And the polyethylene fibers have good water repellency and thermal conductivity, have a cooling effect instantly in contact with the skin and have a high Qmax value, so that the moisture absorption and sweat releasing rate and the cooling feeling of the fabric are improved, and good fluorescence performance is still kept after the fabric is exposed to the sun in the European standard EN20471.

Description

Technical Field

[0001] This invention relates to the field of fabrics, specifically to a moisture-wicking and sun-resistant fluorescent knitted fabric. Background Technology

[0002] Moisture-wicking and sun-resistant fluorescent knitted fabric is a one-way moisture-wicking material with a cooling sensation and sun protection. It boasts excellent one-way moisture wicking, a high Qmax value, and fluorescent sun protection. It can quickly wick away sweat, keeping the skin dry and preventing it from sticking to the body. Currently, there are two main processing methods on the market: one involves adding cooling masterbatch to the fibers combined with cross-shaped or irregularly shaped cross-sections for moisture wicking; the other is post-processing technology, which involves adding cooling and moisture-wicking additives during subsequent dyeing and finishing processes. Both processes are the most widely used in the market, but neither can fully meet market demands. Therefore, a moisture-wicking and sun-resistant fluorescent knitted fabric is needed to improve the moisture-wicking and sun-resistant properties of existing fabrics. Summary of the Invention

[0003] This invention provides a moisture-wicking and sun-resistant fluorescent knitted fabric with better moisture-wicking and sun-resistant properties, solving the problems mentioned in the background art.

[0004] This invention provides the following technical solution: a moisture-wicking and sun-resistant fluorescent knitted fabric, comprising a surface layer and a bottom layer, wherein the surface layer and the bottom layer fibers are interwoven to form a two-layer knitted fabric, the surface layer comprising cationic absorbent polyester fibers, and the bottom layer comprising polyethylene water-repellent fibers, wherein the knitted fabric is immersed in an anti-UV finishing solution in the same bath as the dye during dyeing, and is continuously immersed in a light fastness improving finishing solution during setting, wherein the dye in the dyeing solution is a fluorescent dye.

[0005] Compared to existing technologies, the fabric of this application, as tested by a third-party testing agency, achieves a unidirectional moisture wicking performance of 2-5 according to the AATCC TM195 standard, and a contact cooling Qmax value of 0.389W / cm² according to the JIS L 1927 standard, which significantly improves the performance of moisture absorption and wicking, unidirectional moisture wicking and instant cooling.

[0006] As an optional embodiment of the moisture-wicking and sun-resistant fluorescent knitted fabric described in this invention, the UV-resistant finishing solution contains a certain proportion of o-hydroxyphenyl triazine dispersant. The weight percentage of the UV-resistant finishing agent in the UV-resistant finishing solution is 2-6%. When the knitted fabric is immersed in the UV-resistant finishing solution in the dye bath during dyeing, the pH value of the UV-resistant finishing solution is adjusted to 6.0-7.0. The light fastness improving agent finishing solution contains light stabilizer-123 and diethylene glycol monobutyl ether. The weight percentage of the light fastness improving agent in the light fastness improving agent finishing solution is 5-8%. During finishing, the pH value of the light fastness improving agent finishing solution is adjusted to 7-9. When the knitted fabric is immersed in the UV-resistant finishing solution in the dye bath during dyeing, the immersion time is 2.5-4.5 hours, wherein the heat preservation time during the immersion process is 15-30 minutes. During the setting process, when the fabric is continuously immersed in a lightfastness improving agent finishing solution, the setting machine temperature is 100-120°C, and the liquid-pinching rate is 80-100%. When the knitted fabric is immersed in an anti-UV finishing solution in the same bath as the dye during dyeing, the weight-to-volume ratio of the fabric to the anti-UV finishing solution is 0.05-1 kg / L. During the setting process, when the fabric is continuously immersed in a lightfastness improving agent finishing solution, the weight-to-volume ratio of the fabric to the lightfastness improving agent finishing solution is 0.08-1 kg / L. The fabric employs a 22-36 gauge weft knitting or warp knitting process to create a gradient structure with a hydrophilic inner layer and a hydrophobic outer layer.

[0007] As an optional solution for the moisture-wicking and sun-resistant fluorescent knitted fabric described in this invention, the process flow for the filament cationic absorbent polyester is as follows: polyester chips - melt spinning - pre-oriented yarn - stretch textured yarn. The weaving process flow is as follows: yarn - pre-weaving preparation (winding, waxing) - weaving (weft knitting / warp knitting) - greige fabric inspection. The dyeing and finishing process is as follows: weighing and unwinding - unwinding and sewing - fabric spreading - dyeing - dehydration - cutting / width opening - finished product shaping - inspection and packaging.

[0008] The present invention has the following beneficial effects: 1. This moisture-wicking and sun-resistant fluorescent knitted fabric, tested by a third-party testing agency, achieves a unidirectional moisture-wicking performance of 2-5 according to the AATCC™ 195 standard, and a contact cooling Qmax value of 0.389 W / cm² according to the JIS L 1927 standard, significantly improving its moisture-wicking, unidirectional moisture-wicking, and instant cooling performance.

[0009] 2. This moisture-wicking and sun-resistant fluorescent knitted fabric features cationic polyester, which possesses excellent hydrophilicity and moisture-wicking properties and can be dyed at approximately 100°C using cationic dyes, resulting in energy conservation and environmental friendliness. Polyethylene fiber exhibits inherent water repellency and excellent thermal conductivity. By blending these two complementary fibers and employing 22-36 gauge weft or warp knitting techniques, the fabric achieves a gradient structure with a hydrophilic inner layer and a hydrophobic outer layer. The cationic polyester is primarily distributed in the inner layer, quickly absorbing and conducting sweat through the capillary effect created by its surface grooves or irregular cross-sections. The polyethylene fiber is mainly distributed in the outer layer, using its water repellency to prevent moisture backflow and its high thermal conductivity to rapidly dissipate heat from the skin, producing an instant cooling sensation. The fabric's structure achieves unidirectional moisture wicking from the inside out, and combined with the material's properties, provides a significant cooling sensation, effectively solving the technical problems of poor moisture wicking, sticky feeling, and stuffy sensation associated with traditional fabrics. Attached Figure Description

[0010] Figure 1 This is a schematic cross-sectional view of the fabric structure of the present invention.

[0011] Figure 2 This is a schematic diagram of the structural model of the fabric of the present invention. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Please see Figure 1 and 2 One type of moisture-wicking and sun-resistant fluorescent knitted fabric is prepared by: preparing 35 kg of cationic polyester moisture-wicking yarn and 35 kg of polyethylene fiber water-repellent yarn, dividing them into 35 bobbins, each bobbin weighing 1 kg net. These are then arranged in a 1:1 circular knitting pattern on a circular knitting machine to obtain the interwoven fabric. After sampling, further finishing with sun-resistant fluorescent coloring is performed. The specific steps are as follows: First, the UV-resistant finishing agent is prepared. The UV-resistant finishing agent is an o-hydroxyphenyl triazine preparation containing a certain proportion of dispersant. Specifically, the raw materials are weighed according to the data corresponding to Examples 1-4 in Table 1, stirred and mixed evenly to obtain the UV-resistant finishing agent. Unit: grams.

[0014] Table 1: .

[0015] Then, the light fastness improving agent was prepared. The raw materials were weighed according to the data corresponding to Examples 1-4 in Table 2, and stirred and mixed evenly to obtain the light fastness improving finishing agent. The unit is grams.

[0016] Table 2: .

[0017] During the finishing process, the UV-resistant agent is immersed in the dye bath. The UV-resistant finishing agent described in the above embodiment is added to the dye bath at a weight percentage of 2-6%. The pH value is adjusted to 6.0-7.0 at a dyeing temperature of 100°C, and the immersion time is 2.5-4.5 hours, including a heat preservation time of 15-30 minutes during immersion. The weight-to-volume ratio of the fabric to the UV-resistant finishing solution is 0.05-1 kg / L.

[0018] During the finishing process, the light fastness improver of the above embodiment is prepared as a light fastness improver finishing solution with a weight percentage of 5-8%. The pH value of the light fastness improver finishing solution is adjusted to 7-9, the temperature of the setting machine is 100-120°C, and the liquid-pinching rate is 80-100%. The weight-volume ratio of the fabric to the light fastness improver finishing solution is 0.08-1 kg / L.

[0019] Fluorescent red and fluorescent orange were used respectively, and fluorescent colors were prepared based on the formulations of the above embodiments to create moisture-wicking and sun-resistant fluorescent knitted fabrics. After the above processing, the moisture-wicking and sun-resistant fluorescent knitted fabrics were obtained and then tested.

[0020] The fluorescence coordinates of the fabric after sun exposure were tested according to the European national standard EN-20471 "High Visibility Clothing - Test Methods and Requirements". The test results are shown in Tables 3 and 4.

[0021] Table 3 shows the results of the fluorescent orange test (EU standard EN-20471) after sun exposure. Examples 1-6 in Table 3 correspond to the finishing agent formulations of Examples 1-6 above. Table 3: .

[0022] Table 4 shows the results of the fluorescent red European standard EN-20471 post-sun exposure test. Examples 1-6 in Table 4 correspond to the finishing agent formulations of Examples 1-6 above. Table 4:

[0023] The moisture-wicking and sun-resistant fluorescent knitted fabric of this application, tested by a third-party testing agency, achieved a unidirectional moisture wicking performance of 2-5 according to the AATCC™ 195 standard, and a contact cooling Qmax value of 0.389 W / cm² according to the JIS L 1927 standard, significantly improving moisture wicking, unidirectional moisture wicking, and instant cooling performance. Furthermore, the test results show that the sunlight fastness of the moisture-wicking and sun-resistant fluorescent knitted fabric prepared in this application is also excellent.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A moisture-wicking and sun-resistant fluorescent knitted fabric, characterized in that, It consists of a top layer and a bottom layer, which are knitted fabrics with two layers of interwoven fibers. The top layer includes cationic absorbent polyester fibers, and the bottom layer includes polyethylene water-repellent fibers. During the setting process, the fabric is continuously immersed in a light fastness improving finishing solution, and the dye in the dyeing solution is a fluorescent dye.

2. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 1, characterized in that: During the dyeing process, the knitted fabric is immersed in an anti-UV finishing solution in the same bath as the dyeing solution. The anti-UV finishing solution contains a certain proportion of o-hydroxyphenyltriazine preparation as a dispersant.

3. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 2, characterized in that: The weight percentage of UV-resistant finishing agent in the UV-resistant finishing solution is 2-6%. When knitted fabrics are immersed in the UV-resistant finishing solution in the dye bath during dyeing, the pH value of the UV-resistant finishing solution should be adjusted to 6.0-7.

0.

4. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 1 or 2, characterized in that: The light fastness improving agents in the finishing solution include: light stabilizer-123 and diethylene glycol monobutyl ether.

5. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 4, characterized in that: The weight percentage of the light fastness improver in the light fastness improver finishing solution is 5-8%. During finishing, the pH value of the light fastness improver finishing solution is adjusted to 7-9.

6. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 2, characterized in that: When knitted fabrics are dyed, they are immersed in the same bath as the UV-resistant finishing solution in the dye bath for 2.5-4.5 hours, of which the heat preservation time during the immersion process is 15-30 minutes.

7. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 4, characterized in that: During the setting process, when the sample is continuously immersed in a light fastness improving finishing solution, the temperature of the setting machine is 100-120°C and the liquid rolling rate is 80-100%.

8. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 2, characterized in that: When knitted fabrics are immersed in UV-resistant finishing solution in the same bath as the dyeing solution during dyeing, the weight-to-volume ratio of the fabric to the UV-resistant finishing solution is 0.05-1 kg / L.

9. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 4, characterized in that: When the fabric is continuously immersed in the light fastness improving agent finishing solution during the finishing process, the weight-to-volume ratio of the fabric to the light fastness improving agent finishing solution is 0.08-1 kg / L.

10. The moisture-wicking and sun-resistant fluorescent knitted fabric according to claim 1, characterized in that: The fabric uses a 22-36 needle weft knitting or warp knitting process to create a gradient structure with a hydrophilic inner layer and a hydrophobic outer layer.

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