Weft-knitted double-sided fabric with deodorizing function and production method thereof

Abstract

The invention discloses a weft-knitted double-sided fabric with deodorizing function and a processing method. The weft-knitted double-sided fabric with deodorizing function comprises a fabric body, the fabric body comprises a surface yarn, a lining yarn, a connecting layer and a bottom yarn, the surface yarn is 20D / 24F high elastic semi-bright nylon DTY yarn as the surface yarn, the lining yarn and the connecting layer are both 20D deodorizing lycra spandex, the bottom yarn is 100S / 1 Micro Modal yarn, the surface yarn and the lining yarn are combined to form an outer layer, the bottom yarn and the lining yarn are combined to form an inner layer, and the outer layer and the inner layer are connected by a connecting layer. The surface yarn is selected so that the front side is not easy to generate pilling and has good appearance shape retention; the bottom yarn is selected so that the moisture absorption and air permeability are good and static electricity is not easy to be generated; 20D deodorizing lycra spandex is used as the lining yarn of the cloth surface and the cloth bottom yarn and the connecting layer yarn connecting the two sides; thus, the whole fabric body has a deodorizing function, good moisture absorption and air permeability, is not easy to pilling, and has a smooth and beautiful appearance.

Description

Technical Field

[0001] The invention belongs to the technical field of knitted underwear fabrics, and in particular relates to a weft-knitted double-sided fabric with deodorizing function and a production method thereof. Background Art

[0002] At present, the fabrics of underwear available in the market are of a single type. One type of fabric is made of nylon and deodorizing spandex. This type of fabric has the function of deodorizing, but nylon is a chemical fiber material with poor moisture absorption, poor breathability when close to the skin, poor moisture absorption, easy to generate static electricity, and certain damage to the skin. The other type is underwear fabric made of materials from natural materials such as cotton and Modal. They have good moisture absorption and breathability and play a good protective role on the skin. However, this type of fabric cannot be matched with deodorizing spandex or cannot meet the deodorizing test requirements because this type of fiber needs to be treated with alkali during the dyeing process. In addition, this type of fabric can only pass the test of removing acetic acid odor after adding deodorizing additives through post-finishing, and does not have the function of removing ammonia odor. At the same time, this type of fabric is also prone to pilling, poor shape retention, and poor appearance. Summary of the invention

[0003] The object of the present invention is to provide a weft-knitted double-sided fabric with an anti-odor function and a production method thereof which can solve at least one of the above-mentioned problems.

[0004] According to one aspect of the present invention, a weft-knitted double-sided fabric with an anti-odor function is provided, comprising a fabric body, the fabric body comprising a surface yarn, a padding yarn, a connecting layer and a bottom layer yarn, the surface yarn is 20D / 24F high-elastic semi-bright nylon DTY yarn as the surface yarn of the fabric, the padding yarn and the connecting layer are both 20D deodorizing Lycra spandex, the bottom layer yarn is 100S / 1MicroModal yarn, the surface yarn and the padding yarn are combined to form an outer layer, the bottom layer yarn and the padding yarn are combined to form an inner layer, and the outer layer and the inner layer are connected by a connecting layer.

[0005] The beneficial effects of the present invention are as follows: 20D / 24F high-elastic semi-bright nylon DTY yarn is selected as the surface yarn of the fabric, and the filament yarn is used as the front side of the fabric, which is not easy to produce pilling and has good appearance shape retention; 100S / 1Micro Modal yarn is selected as the bottom yarn of the fabric, the raw material of the Modal yarn is wood from nature, has good moisture absorption and air permeability, is not easy to generate static electricity, and has a good protective effect on the skin; 20D deodorizing Lycra spandex is selected as the lining yarn of the fabric surface and the bottom yarn and the connecting layer yarn connecting the two sides, the deodorizing spandex ensures the deodorizing performance of the fabric as well as the stretching degree and recovery performance of the fabric; so that the entire fabric body has a deodorizing function, good moisture absorption and air permeability, is not easy to pilling, and has a smooth and beautiful appearance of the weft-knitted double-sided fabric.

[0006] In some embodiments, the fabric body has a structure that uses two knitting needles and six yarns to form a complete cycle of double-sided sandwich structures, thereby meeting the processing requirements of the fabric body.

[0007] In some embodiments, the needle arrangement of the fabric body during knitting is as follows: the needle disk is arranged in two levels of 2 and 1; the needle cylinder is arranged in two levels of 1 and 2; the needle disk and the needle cylinder are in a needle-to-needle form; and the triangle arrangement adopts a 6-way cycle. This facilitates the knitting of the fabric body and the connection of the inner layer and the outer layer.

[0008] In some embodiments, the yarn arrangement of the fabric body is as follows: the 1st and 4th yarns are used as the middle connecting layer with 20D deodorizing Lycra spandex; the 2nd and 5th yarns are used as the bottom yarns, and the 20D deodorizing Lycra spandex lining yarns are woven together to form the inner layer of the fabric; the 3rd and 6th yarns are used as the surface yarns with 20D deodorizing Lycra spandex lining yarns, and the outer layer of the fabric is woven together. In this way, the inner layer and the outer layer are conveniently processed, and the connection through the connecting layer is convenient.

[0009] In some embodiments, the yarn feeding amount of the fabric body is calculated based on the length of 100 coils, the yarn length of the surface yarn 20D / 24F high elastic semi-bright nylon DTY is 26CM, the yarn length of the bottom yarn 100S / 1Micro Modal is 28CM, and the yarn length of the lining yarn and the connecting layer 20D deodorizing Lycra spandex is 9.6CM. Thus, the size of the fabric body is stable.

[0010] According to another aspect of the present invention, there is provided a method for producing a weft-knitted double-sided fabric with an anti-odor function, comprising the following steps:

[0011] S1, choose 32 needles, 34 inches, 84 routes of weft knitting double-sided circular knitting machine;

[0012] S2, knitting the fabric body in the selected circular knitting machine according to the organization structure, needle arrangement method, needle alignment method, yarn arrangement method and yarn feeding amount to obtain the fabric body;

[0013] S3, dyeing and finishing the fabric body obtained above, and the process after dyeing and finishing is degreasing in a setting machine, pre-setting, dyeing and post-setting. Thus, the obtained fabric has a deodorizing function, good moisture absorption and air permeability, is not easy to pilling, and has a smooth and beautiful appearance. Weft knitted double-sided fabric.

[0014] In some embodiments, the degreasing and pre-setting of the setting machine are completed together. The pre-setting is carried out at a high temperature of 195°C, a machine speed of 15 to 18 m / min, and the fabric specifications are: 162 cm x 190 g / m 2Therefore, the degreasing of the setting machine and the pre-setting are completed together. After the grey cloth is loosened, it passes through the degreasing device of the setting machine and then directly undergoes high-temperature initial setting. This process greatly shortens the production process and reduces production costs. At the same time, since the cloth is directly put into the setting machine after degreasing, the hidden danger of overlapping creases caused by long-term stacking of wet cloth is reduced, and the quality stability of the product is improved; at the same time, the fabric specifications are stable.

[0015] In some embodiments, the dyeing process is: first dyeing Modal fiber with reactive dyes, and then dyeing nylon with acid or neutral dyes; specifically comprising the following steps:

[0016] a. Add water to the overflow dyeing machine at a bath ratio of 1:10-15 and add fabric;

[0017] b. Dye Modal fiber, add active dyes, heat to 60℃, add 15-60g / L sodium sulfate linearly, keep warm for 30min, add 5-30g / L soda ash, keep warm for 30-60min, drain, neutralize with acid, and wash;

[0018] c. Dyeing nylon: add 0.5%-3% leveling agent, acid agent, acid or neutral dye, heat to 98℃-105℃ at a rate of 0.5-1.5℃ / min, keep warm for 30-60 minutes, cool to 60℃, and drain;

[0019] d. Add 4-6% (owf) of color fixing agent into warm water, keep warm at 70-80℃ for 20-30 minutes, cool down to 60℃, drain. Add warm water, add 0.5-1.0g / L of citric acid, wash for 10-15 minutes, adjust the pH value of the fabric to be weakly acidic; after dyeing, the fabric is post-shaped. In this way, the performance of the fabric is stable.

[0020] In some embodiments, the post-setting is carried out at a temperature of 160-180 degrees Celsius, a machine speed of 30-36 meters / minute, and a tail trimming process. The fabric specifications are: 152cm X 200g / m 2 This makes the fabric smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The invention relates to a weaving process triangle diagram of a weft-knitted double-sided fabric with anti-odor function. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Reference Figure 1A weft-knitted double-sided fabric with an anti-odor function comprises a fabric body, wherein the fabric body comprises a surface yarn, a lining yarn, a connecting layer and a bottom yarn, wherein the surface yarn is 20D / 24F high elastic semi-bright nylon DTY yarn as the surface yarn of the fabric, the lining yarn and the connecting layer are both 20D deodorizing Lycra spandex, the bottom yarn is 100S / 1Micro Modal yarn, the surface yarn and the lining yarn are combined to form an outer layer, the bottom yarn and the lining yarn are combined to form an inner layer, and the outer layer and the inner layer are connected by a connecting layer. By selecting 20D / 24F high-elastic semi-bright nylon DTY yarn as the surface yarn of the fabric, the filament yarn as the front side of the fabric is not easy to produce pilling and has good appearance shape retention; 100S / 1Micro Modal yarn is selected as the bottom yarn of the fabric. The raw material of Modal yarn is wood from nature, with good moisture absorption and air permeability, not easy to generate static electricity, and has a good protective effect on the skin; 20D deodorizing Lycra spandex is selected as the lining yarn of the surface and bottom yarns of the fabric and the connecting layer yarn connecting the two sides. The deodorizing spandex ensures the deodorizing performance of the fabric as well as the stretching degree and recovery performance of the fabric; thus, the entire fabric body has a deodorizing function, good moisture absorption and air permeability, is not easy to pilling, and has a smooth and beautiful appearance of the weft-knitted double-sided fabric.

[0024] The fabric structure: 2 needles and 6 yarns form a complete loop of double-sided sandwich structure, see Figure 1 Chinese weaving process triangle diagram.

[0025] The needle arrangement method of the fabric body during knitting is as follows: the needle disk is arranged in two levels of 2 and 1; the needle cylinder is arranged in two levels of 1 and 2; the needle disk and the needle cylinder are in the form of needle against needle; the triangle arrangement adopts 6 routes in one cycle.

[0026] The yarn arrangement method of the fabric body: the 1st and 4th routes are used as the middle connecting layer with 20D deodorizing Lycra spandex; the 2nd and 5th routes use 100S / 1Micro Modal as the bottom yarn, and are woven together with the 20D deodorizing Lycra spandex lining yarn to form the inner layer of the fabric; the 3rd and 6th routes use 20D / 24F high elastic semi-gloss nylon DTY as the surface yarn, and are woven together with the 20D deodorizing Lycra spandex lining yarn to form the outer layer of the fabric.

[0027] The yarn feeding amount of the fabric body is calculated based on the length of 100 coils. The yarn length of the surface yarn 20D / 24F high elastic semi-bright nylon DTY is 26CM, the yarn length of the bottom yarn 100S / 1Micro Modal is 28CM, and the yarn length of the lining yarn and connecting layer 20D deodorizing Lycra spandex is 9.6CM.

[0028] The fabric body obtained by the knitting method has stable size specifications, has deodorizing function, good moisture absorption and air permeability, is not easy to pilling, and has a smooth and beautiful appearance.

[0029] A method for producing a weft-knitted double-sided fabric with an anti-odor function comprises the following steps:

[0030] S1, choose 32 needles, 34 inches, 84 routes of weft knitting double-sided circular knitting machine;

[0031] S2, knitting the fabric body in the selected circular knitting machine according to the organization structure, needle arrangement method, needle alignment method, yarn arrangement method and yarn feeding amount to obtain the fabric body;

[0032] S3, dyeing and finishing the fabric body obtained above, and the process of post-dyeing and finishing is degreasing in a setting machine, pre-setting, dyeing and post-setting.

[0033] The degreasing and pre-setting of the setting machine are completed together. The pre-setting is carried out at a high temperature of 195°C, the machine speed is 15-18 m / min, and the fabric specifications are: 162cm X 190g / m 2 . Since the degreasing of the shaping machine is completed together with the first high-temperature initial setting, that is, the grey cloth is directly subjected to the high-temperature initial setting after passing through the degreasing device of the shaping machine after loosening, this process greatly shortens the production process and reduces production costs. At the same time, since the wet cloth is directly put into the shaping machine after degreasing, the hidden danger of overlapping creases caused by long-term stacking of wet cloth is reduced, and the quality stability of the product is improved. At the same time, the fabric specifications off the machine are: 162cm X 190g / m 2 , making the fabric specifications stable.

[0034] The dyeing process is: first dye Modal fiber with reactive dyes, and then dye nylon with acid or neutral dyes; specifically includes the following steps:

[0035] a. Add water to the overflow dyeing machine at a bath ratio of 1:10-15 and add fabric;

[0036] b. Dye Modal fiber, add active dyes, heat to 60℃, add 15-60g / L sodium sulfate linearly, keep warm for 30min, add 5-30g / L soda ash, keep warm for 30-60min, drain after the color is accurate, then neutralize with acid, wash with hot water, soap, and warm water for cleaning;

[0037] c. Dyeing nylon: add 0.5%-3% leveling agent, acid agent, acid or neutral dye, heat to 98℃-105℃ at a rate of 0.5-1.5℃ / min, keep warm for 30-60 minutes, cool to 60℃, and drain;

[0038] d. Add 4-6% (owf) of color fixing agent into warm water, keep warm at 70-80℃ for 20-30 minutes, cool to 60℃, drain. Add warm water, add 0.5-1.0g / L of citric acid, wash for 10-15 minutes, adjust the pH value of the fabric to be weakly acidic; after dyeing, the fabric is finalized.

[0039] The post-setting process is carried out at a temperature of 160-180 degrees Celsius and a machine speed of 30-36 meters per minute. The machine tail is trimmed. The fabric specifications are: 152cm X 200g / m 2 . Thus, the fabric is smoother; in the actual operation process, a hydrophilic softening agent containing silicon is added to the material trough during post-setting to improve the softness of the fabric and make the fabric super soft.

[0040] Therefore, the fabric prepared by the method has good moisture absorption and breathability, is not easy to generate static electricity, has a good protective effect on the skin; is not easy to generate pilling, has good appearance shape retention; has a deodorizing function, and can remove sweat and body odor produced by the human body.

[0041] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for producing a weft-knitted double-sided fabric with an anti-odor function, characterized in that: The steps include: S1, choose 32 needles, 34 inches, 84 routes of weft knitting double-sided circular knitting machine; S2, knitting the fabric body in the selected circular knitting machine according to the organization structure, needle arrangement method, needle alignment method, yarn arrangement method and yarn feeding amount to obtain the fabric body; The fabric body comprises a surface yarn, a lining yarn, a connecting layer and a bottom yarn, wherein the surface yarn is 20D / 24F high elastic semi-gloss nylon DTY yarn as the surface yarn of the fabric, the lining yarn and the connecting layer are both 20D deodorizing Lycra spandex, the bottom yarn is 100S / 1 Micro Modal yarn, the surface yarn and the lining yarn are combined to form an outer layer, the bottom yarn and the lining yarn are combined to form an inner layer, and the outer layer and the inner layer are connected by a connecting layer; The fabric structure of the main body is: a double-sided sandwich structure with 2 knitting needles and 6 yarns forming a complete cycle; The needle arrangement mode of the fabric body during knitting is as follows: the needle disk is arranged in two levels of 2 and 1; the needle cylinder is arranged in two levels of 1 and 2; the needle disk and needle cylinder are in the form of needles; the triangle arrangement adopts 6 routes in one cycle; The yarn arrangement method of the fabric body is as follows: the 1st and 4th routes are used as the middle connecting layer with 20D deodorizing lycra spandex; the 2nd and 5th routes are used with 100S / 1 Micro Modal as the bottom yarn, and the 20D deodorizing lycra spandex padding yarn is woven together to form the inner layer of the fabric; the 3rd and 6th routes are used with 20D / 24F high elastic semi-gloss nylon DTY as the surface yarn, and the 20D deodorizing lycra spandex padding yarn is woven together to form the outer layer of the fabric; The yarn feeding amount of the fabric body is calculated based on the length of 100 coils, the yarn length of the surface yarn 20D / 24F high elastic semi-bright nylon DTY is 26CM, the yarn length of the bottom yarn 100S / 1Micro Modal is 28CM, and the yarn length of the lining yarn and the connecting layer 20D deodorizing Lycra spandex is 9.6CM; S3, dyeing and finishing the fabric body obtained above, and the process of post-dyeing and finishing is degreasing in a setting machine, pre-setting, dyeing and post-setting; The setting machine is used for degreasing and pre-setting. The pre-setting is performed at a high temperature of 195°C and a machine speed of 15-18 m / min. The fabric specifications are: 162 cm x 190 g / m 2 ; The dyeing process is: first dyeing Modal fiber with reactive dyes, and then dyeing nylon with acid or neutral dyes; specifically includes the following steps: a. Add water to the overflow dyeing machine at a bath ratio of 1:10-15 and add fabric; b. Dye Modal fiber, add active dyes, heat to 60℃, add 15-60g / L sodium sulfate linearly, keep warm for 30min, add 5-30g / L soda ash, keep warm for 30-60min, drain, neutralize with acid, and wash; c. Dyeing nylon: add 0.5%-3% leveling agent, acid agent, acid or neutral dye, heat to 98-105℃ at a rate of 0.5-1.5℃ / min, keep warm for 30-60 minutes, cool to 60℃, and drain; d. Add 4-6% (owf) of color fixing agent into warm water, keep warm at 70-80℃ for 20-30 minutes, cool down to 60℃, and drain; add 0.5-1.0g / L of citric acid into warm water, wash for 10-15 minutes, and adjust the pH value of the fabric to be weakly acidic; after dyeing, the fabric is finalized.

2. The method for producing a weft-knitted double-sided fabric with deodorizing function according to claim 1, characterized in that: The post-setting is carried out at a temperature of 160-180 degrees Celsius, a machine speed of 30-36 meters / minute, and a tail trimming process. The fabric specifications are: 152cm X 200g / m 2 .

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