Production process of swimsuit fabric with waterproof function

Abstract

The invention discloses a production process of a swimsuit fabric with a waterproof function. The production process comprises the following steps: S1, selecting a weft knitting single-side circular knitting machine; s2, knitting yarns in the selected weft knitting single-side circular knitting machine to obtain a fabric body; s3, dyeing and finishing the obtained fabric body; the fabric body is composed of surface layer yarns and lining yarns, the surface layer yarns adopt 40D / 34F high-elastic matte chinlon 66 waterproof DTY yarns, the lining yarns adopt 40D super-strong anti-chlorine lycra, the weave structure of the fabric body adopts a weft plain stitch structure formed by one knitting needle and one path of yarns to form a complete cycle, and the yarn arrangement mode of the fabric body is that one path is a cycle. The woven fabric body is compact in structure, and the waterproof effect is improved; meanwhile, through selection of the surface layer yarn, the surface layer yarn has a good waterproof effect, the waterproof time of the fabric is prolonged, a waterproof additive does not need to be added into the fabric, the waterproof effect cannot be obviously weakened, and the waterproof effect is good.

Description

Technical Field

[0001] The invention belongs to a production process of a fabric, in particular to a production process of a swimsuit fabric with a waterproof function. Background Art

[0002] At present, many swimsuit fabrics on the market do not have waterproof properties. In order to fill this gap, some swimsuit fabrics with waterproof functions have appeared, mainly in the following two categories:

[0003] One type is waterproofed by adding waterproofing agents during the dyeing and finishing process. This type of fabric generally has the problem that the waterproof effect is significantly weakened or disappears after a few regular washes. For swimsuit fabrics that have been immersed in water for a long time, the waterproof effect is particularly weakened.

[0004] The other type uses conventional nylon 6 or polyester waterproof yarn as raw material. The finished fabric has better waterproof effect after washing than the one with waterproof additives, but because the yarn itself is not waterproof enough, the waterproof effect before washing is not as good as that with waterproof additives. Therefore, the existing swimsuit fabrics with waterproof function have poor waterproof effect, and the waterproof effect decreases significantly after washing. Summary of the invention

[0005] The object of the present invention is to provide a production process for a swimsuit fabric with waterproof function which can solve at least one of the above problems.

[0006] According to one aspect of the present invention, a production process of a swimsuit fabric with waterproof function is provided, comprising the following steps:

[0007] S1, choose 44 needles, 34 inches, 102-way weft knitting single-sided circular knitting machine;

[0008] S2, selecting yarn, and weaving the yarn in the selected weft knitting single-sided circular knitting machine to obtain the fabric body;

[0009] S3, dyeing and finishing the fabric body obtained above, the dyeing and finishing process is: degreasing - pre-setting - dyeing - post-setting;

[0010] The fabric body is composed of surface yarn and lining yarn. The surface yarn is made of 40D / 34F high-elastic matte nylon 66 waterproof yarn DTY yarn, and the lining yarn is made of 40D super anti-chlorine lycra. The organizational structure of the fabric body adopts a weft plain needle structure with 1 knitting needle and 1 yarn to form a complete cycle. The yarn arrangement method of the fabric body is: one cycle per one yarn.

[0011] The beneficial effects of the present invention are as follows: a complete cycle of weft plain needle structure is formed by using one knitting needle and one yarn through the surface yarn and the lining yarn, so that the main structure of the woven fabric is compact and the waterproof effect is improved; at the same time, by using 40D / 34F high-elastic matte nylon 66 waterproof yarn DTY yarn as the surface yarn, the surface yarn has a good waterproof effect, and the waterproof time of the fabric is increased, and there is no need to add a waterproof auxiliary agent to the fabric, so that the waterproof effect will not be significantly weakened, and the waterproof effect is good.

[0012] In some embodiments, the needle arrangement of the fabric body is as follows: all needles in the needle cylinder are arranged with first-level needles, thereby facilitating the knitting of the fabric body.

[0013] In some embodiments, the yarn feeding amount of the fabric body is: calculated based on the length of 100 coils, the yarn feeding length of the surface yarn 40D / 34F high elastic matte nylon 66 waterproof yarn DTY is 19cm, and the yarn feeding length of the lining yarn 40D super anti-chlorolycra is 7cm. Thus, the weaving effect of the fabric body is guaranteed and the elasticity requirements of the fabric are met.

[0014] In some embodiments, in the yarn arrangement of the fabric body, the surface yarn is woven with the lining yarn in a weft plain needle structure, thereby facilitating the weaving of the fabric and improving the density of the weaving.

[0015] In some embodiments, the specifications of the fabric body are: width 150-152 cm, weight 180 g / m 2 . As a result, the entire fabric is lighter and avoids feeling heavy.

[0016] In some embodiments, the pre-setting temperature in step S3 is 195°C and the machine speed is 15-18 m / min. The fabric specifications are: width 165 cm, weight 185 g / m 2 .

[0017] In some embodiments, the post-setting temperature in step S3 is 160-180°C, the machine speed is 30-36 m / min, and the off-machine specifications of the fabric body are: width 150-152 cm, gram weight 180 g / m 2 .

[0018] In some embodiments, after each step of the dyeing and finishing process in step S3 is completed, a waterproof test is performed on the fabric body, and the next step in the dyeing and finishing process can be entered only after the waterproof test is passed.

[0019] Therefore, through the dyeing and finishing process in step S3, waterproof testing is required between each process. Therefore, the production process of the fabric body can be controlled, and the addition of waterproof additives in each process of the dyeing and finishing process can be avoided to ensure the waterproof effect of the fabric body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a triangular pattern woven by the production process of swimsuit fabric with waterproof function. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] Reference Figure 1 A production process for a swimsuit fabric with waterproof function, comprising the following steps:

[0023] S1, choose 44 needles, 34 inches, 102-way weft knitting single-sided circular knitting machine;

[0024] S2, selecting yarn, and weaving the yarn in the selected weft knitting single-sided circular knitting machine to obtain the fabric body;

[0025] S3, dyeing and finishing the fabric body obtained above, the dyeing and finishing process is: degreasing - pre-setting - dyeing - post-setting;

[0026] The fabric body is composed of surface yarn and lining yarn. The surface yarn is made of 40D / 34F high-elastic matte nylon 66 waterproof yarn DTY (Draw texturing yarn), and the lining yarn is made of 40D super-strong anti-chlorine lycra. The organizational structure of the fabric body adopts a weft plain needle structure with 1 knitting needle and 1 yarn to form a complete cycle. The yarn arrangement method of the fabric body is: one cycle per one knitting needle.

[0027] Therefore, the fabric body is woven into a compact structure and has a high waterproof effect, and has a good sun protection effect and strong wrapping properties through the above-mentioned organizational structure and yarn arrangement method. At the same time, combined with the corresponding surface yarn and lining yarn, the fabric body has the functions of resisting pilling and being highly resistant to chlorine water corrosion.

[0028] The surface yarn is made of 40D / 34F high-elastic matte nylon 66 waterproof yarn DTY yarn, which makes the yarn itself have a good waterproof effect. Therefore, no waterproof additives need to be added to the fabric body during the production process, making the waterproof effect of the fabric body more durable, and achieving the effect that the waterproof effect of the fabric is not significantly weakened before washing and after washing 30 to 50 times. At the same time, the lining yarn is made of 40D super chlorine-resistant Lycra, which makes the fabric have a super strong resistance to chlorine water corrosion.

[0029] The needle arrangement of the fabric body is: all needles of the needle cylinder are arranged with level 1 needles. When knitting the fabric body, a 44-needle 34-inch 102-way weft knitting single-sided circular machine is selected, and the machine speed is 10 to 12 revolutions / min.

[0030] The yarn feeding amount of the fabric body is: calculated based on the length of 100 coils, the yarn feeding length of the surface yarn 340D / 34F high elastic matte nylon 66 waterproof yarn DTY is 19cm, and the yarn feeding length of the lining yarn 40D super anti-chlorolycra is 7cm.

[0031] The fabric body is woven in a yarn arrangement method in which the surface yarn is matched with the lining yarn in a weft plain needle structure.

[0032] The specifications of the fabric body are: width 150~152cm, weight 180g / m 2 .

[0033] The pre-setting temperature in step S3 is 195°C and the machine speed is 15-18 m / min. The fabric specifications are: width 165 cm, weight 185 g / m 2 During the degreasing process of pre-setting, conventional water washing is used to remove oil, and waterproofing agents are avoided in each process. Therefore, through the pre-setting treatment, the specifications of the fabric body are stabilized and the creases, curling and curling of the fabric are reduced during the dyeing process.

[0034] Among them, dyeing adopts liquid flow machine dyeing.

[0035] The post-setting temperature in step S3 is 160-180°C, the machine speed is 30-36 m / min, and the machine specifications of the fabric body are: width 150-152 cm, gram weight 180 g / m 2 During post-setting, the trough and the rolling machine need to be cleaned repeatedly to avoid the residual additives from the front end affecting the waterproof effect of the fabric. Only cold water can be added to the trough, and no other hand feel additives can be added.

[0036] After each process of the dyeing and finishing process in step S3 is completed, the waterproof test of the fabric body is carried out. Only after the waterproof test is qualified can the next process in the dyeing and finishing process be entered. The waterproof test in the dyeing and finishing process is carried out by dripping water directly on the fabric body for waterproof test. When the dripping water droplets can form complete water beads, it is visually judged that the waterproof effect is qualified and the next process can be entered.

[0037] Therefore, through the organizational structure, yarn arrangement, needle arrangement and coordination of the fabric body, the fabric body has good waterproof performance and good elasticity. The corresponding performance tests of the fabric body are as follows:

[0038] ISO test was carried out under standard laboratory conditions of temperature 20℃ and humidity 65%. The dry friction fastness of the fabric was ≥3-4, wet friction fastness was ≥3, color fastness to washing was ≥3-4, staining was ≥3, color fastness to water stain was ≥3-4, staining was ≥3. BS EN 14704-120N was used to test the tensile strength. The elongation of the fabric was 180% in the warp and 130% in the weft. The recovery rate was 87% in the warp and 97% in the weft. The modulus (40%) was 0.9N in the warp and 1.6N in the weft. ASTM D3939 was used to test the snagging. The warp was level 4 and the weft was level 4. GB / T 4802.1E was used to test the pilling. The warp was level 4-5 and the weft was level 4-5. The film was sent to a notary office for testing of UV resistance and coolness. The UV resistance was tested according to GB / T 18830-2009 method, and the result was UPF 268, greater than 50, and UVA 3.17, less than 5; the coolness was tested according to GB / T35263-2017 method, and the result was 0.20J / (CM2*S), greater than 0.15J / (CM2*S).

[0039] The waterproof performance of the fabric produced by the production process of the swimsuit fabric with waterproof function of the present invention is compared with that of the existing commonly used swimsuit fabric. The composition of the existing commonly used swimsuit fabric is: 73% polyamide fiber and 27% spandex. The comparison fabric is added with a waterproofing auxiliary agent during the dyeing and finishing process. The data in the following table is selected according to GB / T 4745-2012 and the washing method ISO 63304N 40°C. The waterproof effect is evaluated every 5 washes. The specific performance test comparison results are as follows:

[0040]

[0041] It can be seen from the test data in the above table that the waterproof effect of the fabric produced by the present invention is the same as that of the comparative fabric before washing. After 10 washes, the waterproof effect of the comparative fabric decreases rapidly, while the waterproof effect of the present fabric remains unchanged; after 30 washes, the waterproof effect of the present fabric remains unchanged, and after 50 washes, the waterproof effect of the present fabric does not significantly weaken. It can be seen that the fabric produced by the present invention has a lasting waterproof effect and a stable waterproof effect.

[0042] The above are only preferred embodiments of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A production process for a swimsuit fabric with waterproof function, characterized in that: The steps include: S1, select a 44-needle, 34-inch, 102-way weft knitting single-sided circular knitting machine; S2, selecting yarn, and weaving the yarn in the selected weft knitting single-sided circular knitting machine to obtain the fabric body; S3, dyeing and finishing the fabric body obtained above, the dyeing and finishing process is: degreasing - pre-setting - dyeing - post-setting; The fabric body is composed of a surface yarn and a lining yarn. The surface yarn is made of 40D / 34F high-elastic matte nylon 66 waterproof yarn DTY yarn, and the lining yarn is made of 40D super-strong anti-chlorine lycra. The organizational structure of the fabric body adopts a weft plain needle structure in which one knitting needle and one yarn form a complete cycle. The yarn arrangement method of the fabric body is: one cycle per one yarn.

2. The production process of a swimsuit fabric with waterproof function according to claim 1, characterized in that: The needle arrangement mode of the fabric body is that all needles in the needle cylinder are arranged with first-level needles.

3. The production process of a swimsuit fabric with waterproof function according to claim 2, characterized in that: The yarn feeding amount of the fabric body is: calculated based on the length of 100 coils, the yarn feeding length of the surface yarn 40D / 34F high elastic matte nylon 66 waterproof yarn DTY is 19cm, and the yarn feeding length of the lining yarn 40D super anti-chlorolycra is 7cm.

4. The production process of a swimsuit fabric with waterproof function according to claim 3, characterized in that: In the yarn arrangement mode of the fabric body, the surface yarn is woven together with the lining yarn in a weft plain needle structure.

5. The production process of a swimsuit fabric with waterproof function according to any one of claims 1 to 4, characterized in that: The specifications of the fabric body are: width 150-152cm, weight 180g / m 2 .

6. The production process of a swimsuit fabric with waterproof function according to claim 1, characterized in that: The pre-setting temperature in step S3 is 195°C and the machine speed is 15-18 m / min. The fabric specifications are: width 165 cm, weight 185 g / m 2 .

7. The production process of a swimsuit fabric with waterproof function according to claim 6, characterized in that: The post-setting temperature in step S3 is 160-180°C, the machine speed is 30-36 m / min, and the machine specifications of the fabric body are: width 150-152 cm, gram weight 180 g / m 2 .

8. The production process of a swimsuit fabric with waterproof function according to claim 1, 6 or 7, characterized in that: After each step of the dyeing and finishing process in step S3 is completed, a waterproof test is performed on the fabric body. Only after the waterproof test is passed can the next step in the dyeing and finishing process be entered.

Images