Multi-fiber all-in-one velvet four-side elastic shark pants thermal velvet fabric and preparation method thereof

Abstract

The invention relates to the field of textile fabrics, in particular to a multi-fiber all-in-one suede four-way stretch shark trouser warm-keeping suede fabric which comprises a weave 1 matched with weft plain stitch weave and made of nylon / polyester filament yarn core-spun elastic fiber spandex materials, a weave 2 adopting core-spun yarn of the weave 1 and matched with elastic spandex, and a weave 3 which is vertically connected double rib weave. Chemical fiber filaments and elastic fibers are adopted as connecting lines, and the weave 4 is a looped pile weave and is made of cellulose fibers with high hygroscopicity and excellent skin-friendly performance. Through the innovative combination of the weave 1 and the weave 4, the fabric has the multiple functions of fine appearance, four-side elastic property, bulge prevention, high elastic resilience, environmental protection, health, skin fitting, comfort, static resistance and the like, and meets the high requirements of underwear in autumn and winter for comprehensive performance.

Description

Technical Field

[0001] The present invention relates to the technical field of textile fabrics, and specifically relates to a multi-fiber integrated fleece four-way stretch shark pants thermal fleece fabric and a preparation method thereof. Background Art

[0002] Shark pants are a type of tight pants made of reflective fabric, named for their smoothness like shark skin, and mainly in colors such as black and gray. Shark pants are similar to yoga pants but have more shaping functions. The fabric is mainly made of spandex and nylon, pursuing the texture of imitation shark skin.

[0003] At present, there are some deficiencies in the use of fabrics such as shark pants on the market. For example, they are prone to bulging, affecting the aesthetics and wearing experience. At the same time, some traditional fabric lamination processes use glue, which is not environmentally friendly and healthy. In addition, autumn and winter close-fitting clothes need to have comprehensive properties such as good warmth retention, comfort, and elasticity. Existing fabrics often cannot fully meet these requirements. Therefore, it is of great practical significance to develop a fabric with better performance. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a multi-fiber integrated fleece four-way stretch shark pants thermal fleece fabric and a preparation method thereof, which solves the problems of poor warmth retention and comfort of shark pants on the market.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A multi-fiber integrated fleece four-way stretch shark pants thermal fleece fabric, the fabric adopts a weft-knitted double-sided changing tissue structure combined with multiple weft-knitted basic tissues, including:

[0006] Tissue 1, in cooperation with the plain stitch tissue, selects nylon / polyester filament core-spun elastic fiber spandex material, endowing the fabric with a delicate appearance, four-way stretch characteristics, and the function of preventing bulging;

[0007] Tissue 2, adopts the core-spun yarn of Tissue 1 and is paired with elastic spandex to increase the elasticity and resilience effect of the fabric;

[0008] Tissue 3, is a double rib tissue connected up and down, uses chemical fiber filaments and elastic fibers as connecting lines, maintains the elasticity of the fabric and enhances the firmness of the fabric, reducing the risk of breakage in the subsequent raising process;

[0009] Tissue 4, is a looped tissue, uses cellulose fiber with high hygroscopicity and excellent skin-friendly property, achieving skin-friendly comfort and the effect of eliminating static electricity.

[0010] Preferably, in the nylon / polyester filament core-spun elastic fiber spandex, the mass ratio of nylon / polyester filament to spandex is (6-8):(2-4). The core-spun structure enables the spandex to be evenly distributed inside the filament wrapping, ensuring the uniformity of the fabric elasticity.

[0011] Preferably, the knitting ratio of the core-spun yarn to the elastic spandex in the tissue 2 is (7-9):(1-3).

[0012] Preferably, in the tissue 3, the chemical fiber filament is polyester filament or polyamide filament, the elastic fiber is spandex or elastic polyolefin fiber, and the two are woven together to form a rib structure. The coil length of the rib structure is 2.5-3.5 mm, so that while the fabric maintains elasticity, the tensile breaking stress reaches 300-500 N.

[0013] Preferably, in the tissue 4, the cellulose fiber is one or more combinations of cotton fiber, viscose fiber or modal fiber, the fiber fineness is 1.0-1.5 tex, the length is 30-40 mm, and the loop height is 2-4 mm, ensuring high hygroscopicity and skin-friendliness, and the frictional charging voltage ≤ 300 V, effectively eliminating static electricity.

[0014] Preferably, a preparation method of a multi-fiber integrated fleece four-way stretch shark pants thermal fleece fabric comprises the following steps:

[0015] S1. Yarn pretreatment: degreasing and softening the nylon / polyester filament core-spun elastic fiber spandex, elastic spandex, chemical fiber filament and cellulose fiber to improve the weavability of the yarn;

[0016] S2. Knitting process: using a double-sided weft knitting machine, first knitting the tissue 1 and the plain weft knitting, then introducing elastic spandex to knit the tissue 2, then knitting the tissue 3 with chemical fiber filament and elastic fiber, and finally knitting the tissue 4 loop structure;

[0017] S3. Post-finishing process: pre-shaping at a temperature of 150-170 °C for 15-25 s, and then performing raising treatment and shaping treatment to make the fabric reach the required style and performance.

[0018] Preferably, in the S2 step, when knitting the tissue 3, the electronic needle selection technology is used to accurately control the coil structure to ensure the consistency and stability of the rib structure and improve the overall quality of the fabric.

[0019] Preferably, in the S3 step, pre-shrinking and water treatment is added before the raising treatment, and the pre-shrinking rate is controlled at 3%-5% to reduce the shrinkage phenomenon of the fabric in subsequent use and improve the dimensional stability.

[0020] Preferably, in the S2 step, the machine speed is controlled at 15-25 r / min and the yarn feeding tension is 10-20 N during the knitting process.

[0021] Preferably, in the step S3, the speed of the roughening vehicle for roughening treatment is 10-15 m / min, the speed of the roughening roller is 800-1200 r / min, the setting temperature of the setting treatment is 160-180° C., and the time is 20-30 s.

[0022] The invention provides a multi-fiber integrated fleece four-way stretch warm fleece fabric for shark pants and a preparation method thereof.

[0023] It has the following beneficial effects:

[0024] 1. The present invention uses an innovative combination of tissues 1 to 4 to enable the fabric to have multiple functions such as delicate appearance, four-way stretch properties, bulge prevention, high elastic rebound, environmental protection and health, skin-friendly and comfortable, and anti-static, thereby meeting the high requirements for comprehensive performance of autumn and winter underwear.

[0025] 2. The present invention can ensure uniform distribution of spandex through the mass ratio of nylon / polyester filament to spandex and the core-spun structure, so that the elasticity of the fabric is uniform, and the force on each part is consistent when worn, thereby improving wearing comfort and fit.

[0026] 3. The present invention makes the tensile breaking stress of the fabric reach 300-500N through the material selection of tissue 3 and the design of the length of the double rib coil, which not only maintains the elasticity but also enhances the firmness, and is suitable for the subsequent processes such as napping; at the same time, it replaces the traditional glue bonding process, avoids chemical pollution, and is more in line with the concept of environmental protection and health. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the fabric weaving structure of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] like Figure 1 The embodiment of the present invention provides a multi-fiber integrated fleece four-sided stretch shark pants warm fleece fabric, the fabric adopts a weft knitted double-sided variable structure structure combined with multiple weft knitted basic structures, including:

[0031] Weave 1, in combination with the weft plain needle weave, uses nylon / polyester filament core-spun elastic fiber spandex material to give the fabric a delicate appearance, four-way stretch properties and anti-bulging function;

[0032] Weave 2 uses the core-spun yarn of weave 1 and adds elastic spandex to increase the elasticity and rebound effect of the fabric;

[0033] Structure 3 is a double rib structure connected from top to bottom, using chemical fiber filaments and elastic fibers as connecting lines to maintain the elasticity of the fabric and enhance the firmness of the fabric, reducing the risk of breakage in the subsequent napping process;

[0034] Structure 4 is a terry structure that uses cellulose fibers with high moisture absorption and excellent skin affinity to achieve skin-friendly comfort and eliminate static electricity.

[0035] In the nylon / polyester filament core-spun elastic fiber spandex, the mass ratio of nylon / polyester filament to spandex is 6:2. The core-spun structure makes the spandex evenly distributed inside the filament package, ensuring the uniformity of the fabric's elasticity.

[0036] The weaving ratio of core-spun yarn to elastic spandex in weave 2 is 7:1.

[0037] In tissue 3, the chemical fiber filaments are polyester filaments or polyamide filaments, and the elastic fibers are spandex or elastic polyolefin fibers. The two are interwoven to form a double rib structure. The coil length of the double rib structure is 2.5 mm, so that the fabric maintains elasticity while the tensile breaking stress reaches 300-500N.

[0038] The cellulose fibers in tissue 4 are one or more combinations of cotton fibers, viscose fibers or modal fibers, with a fiber fineness of 1.0 tex, a length of 30 mm, and a loop height of 2 mm, ensuring high hygroscopicity and skin-friendliness. The friction charging voltage is ≤300 V, effectively eliminating static electricity.

[0039] A method for preparing a multi-fiber integrated fleece four-sided stretch shark pants warm fleece fabric comprises the following steps:

[0040] S1. Yarn pretreatment: degreasing and softening of nylon / polyester filament core-spun elastic fiber spandex, elastic spandex, chemical fiber filament, and cellulose fiber to improve the yarn weavability. When weaving structure 3, electronic needle selection technology is used to accurately control the coil structure to ensure the consistency and stability of the double rib structure and improve the overall quality of the fabric;

[0041] S2 weaving process: using a double-sided weft knitting machine, first weaving tissue 1 and weft plain needle tissue, then introducing elastic spandex weaving tissue 2, then chemical fiber filament and elastic fiber weaving tissue 3, and finally weaving tissue 4 terry tissue, the weaving process control speed 15r / min, feeding yarn tension 10N;

[0042] S3. Post - finishing process: Perform pre - shaping at a temperature of 150°C for 15 s, followed by raising and shaping processes to make the fabric reach the required style and performance. Add pre - shrinking treatment before raising treatment, with the pre - shrinking rate controlled at 3% - 5% to reduce the shrinkage phenomenon of the fabric during subsequent use and improve dimensional stability. The raising speed of the raising treatment is 10 m / min, the rotation speed of the raising roller is 800 r / min, the shaping temperature of the shaping treatment is 160°C, and the time is 20 s.

[0043] Example 2:

[0044] As Figure 1 , this embodiment of the present invention provides a multi - fiber integrated fleece four - way stretch shark - pants warm fleece fabric. The fabric adopts a weft - knitted double - sided changing tissue structure combined with a multi - weft knitted basic tissue, including:

[0045] Tissue 1, in cooperation with the plain stitch tissue, selects nylon / polyester filament core - spun elastic fiber spandex material, endowing the fabric with a delicate appearance, four - way stretch characteristics, and the function of preventing bulging;

[0046] Tissue 2, adopts the core - spun yarn of Tissue 1 and is paired with elastic spandex to increase the elasticity and resilience effect of the fabric;

[0047] Tissue 3, is a double - rib tissue connected up and down, uses chemical fiber filaments and elastic fibers as connecting lines, maintains the elasticity of the fabric and enhances the firmness of the fabric, reducing the risk of breakage during the subsequent raising process;

[0048] Tissue 4, is a terry tissue, adopts cellulose fibers with high hygroscopicity and excellent skin - friendliness, achieving skin - friendly comfort and the effect of eliminating static electricity.

[0049] In the nylon / polyester filament core - spun elastic fiber spandex, the mass ratio of nylon / polyester filament to spandex is 8:4. The core - spun structure enables the spandex to be evenly distributed inside the filament wrapping, ensuring the uniformity of the fabric elasticity.

[0050] The knitting ratio of the core - spun yarn to elastic spandex in Tissue 2 is 9:3.

[0051] In Tissue 3, the chemical fiber filament is a polyester filament or a polyamide filament, and the elastic fiber is spandex or an elastic polyolefin fiber. The two form a double - rib structure through interlaced knitting. The coil length of the double - rib structure is 3.5 mm, enabling the fabric to maintain elasticity while the tensile breaking stress reaches 500 N.

[0052] In Tissue 4, the cellulose fiber is one or a combination of cotton fiber, viscose fiber, or modal fiber. The fiber fineness is 1.5 tex, the length is 40 mm, and the terry height is 4 mm, ensuring high hygroscopicity and skin - friendliness, and the frictional charging voltage ≤ 300 V, effectively eliminating static electricity.

[0053] A preparation method of a warm fleece fabric for multi-fiber integrated fleece four-way stretch shark pants, comprising the following steps:

[0054] S1. Yarn pretreatment: Degreasing and softening treatment are carried out on nylon / polyester filament core-spun elastic fiber spandex, elastic spandex, chemical fiber filament, and cellulose fiber to improve the weavability of the yarn;

[0055] S2. Knitting process: Using a double-sided weft knitting machine, first knit stitch pattern 1 and plain stitch pattern, then introduce elastic spandex to knit stitch pattern 2, then knit stitch pattern 3 with chemical fiber filament and elastic fiber, and finally knit stitch pattern 4 fleece stitch pattern. When knitting stitch pattern 3, use electronic needle selection technology to precisely control the coil structure, ensure the consistency and stability of the rib stitch pattern, and improve the overall quality of the fabric. During the knitting process, control the machine speed at 25 r / min and the yarn feeding tension at 20 N;

[0056] S3. Post-finishing process: Perform pre-setting at a temperature of 170 °C for 25 s, then carry out raising treatment and setting treatment to make the fabric reach the required style and performance. Add pre-shrinking treatment before raising treatment, control the pre-shrinking rate at 5%, reduce the shrinkage phenomenon of the fabric during subsequent use, and improve the dimensional stability. The raising speed of the raising treatment is 15 m / min, the rotation speed of the raising roller is 1200 r / min, the setting temperature of the setting treatment is 180 °C, and the time is 30 s.

[0057] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-fiber integrated fleece four-way stretch shark pants warm fleece fabric, characterized in that: The fabric adopts a double-sided weft-knitted variable organizational structure combined with multiple basic weft-knitted structures, including: Structure (1), in cooperation with the plain weft-knitted structure, selects nylon / polyester filament core-spun elastic fiber spandex material, endowing the fabric with a delicate appearance, four-way stretch characteristics, and the function of preventing bulging; Structure (2), uses the core-spun yarn of Structure (1) and is paired with elastic spandex to increase the elasticity and resilience of the fabric; Structure (3), is a double rib structure connected up and down, uses chemical fiber filaments and elastic fibers as connecting lines, maintains the elasticity of the fabric and enhances the firmness of the fabric, reducing the risk of breakage in the subsequent raising process; Structure (4), is a terry structure, uses cellulose fibers with high hygroscopicity and excellent skin-friendly properties to achieve skin-friendly comfort and the effect of eliminating static electricity.

2. The thermal fleece fabric of a multi-fiber integrated fleece four-way stretch shark pants according to claim 1, characterized in that: In the nylon / polyester filament core-spun elastic fiber spandex, the mass ratio of nylon / polyester filament to spandex is (6-8):(2-4). The core-spun structure enables the spandex to be evenly distributed inside the filament wrapping, ensuring the uniformity of the fabric elasticity.

3. A multi-fiber integrated fleece four-way stretch shark pants thermal fleece fabric according to claim 1, characterized in that: In Structure (2), the knitting ratio of the core-spun yarn to elastic spandex is (7-9):(1-3).

4. The warm fleece fabric of a multi-fiber integrated fleece four-way stretch shark pants according to claim 1, characterized in that: In Structure (3), the chemical fiber filament is a polyester filament or a polyamide filament, and the elastic fiber is spandex or an elastic polyolefin fiber. The two are interwoven to form a double rib structure. The coil length of the double rib structure is 2.5-3.5mm, enabling the fabric to maintain elasticity while the tensile breaking stress reaches 300-500N.

5. A multi-fiber integrated fleece four-way stretch shark pants thermal fleece fabric according to claim 1, characterized in that: In Structure (4), the cellulose fiber is one or a combination of cotton fiber, viscose fiber, or modal fiber. The fiber fineness is 1.0-1.5tex, the length is 30-40mm, and the terry height is 2-4mm, ensuring high hygroscopicity and skin-friendliness, and the triboelectric charging voltage ≤ 300V, effectively eliminating static electricity.

6. The preparation method of a warm fleece fabric for a multi-fiber integrated fleece four-way stretch shark pants according to any one of claims 1-5, characterized in that: Including the following steps: S1. Yarn pretreatment: Perform degreasing and softening treatment on nylon / polyester filament core-spun elastic fiber spandex, elastic spandex, chemical fiber filaments, and cellulose fibers to improve the weavability of the yarn; S2. Knitting process: Use a double-sided weft knitting machine. First, knit Structure (1) and the plain weft-knitted structure, then introduce elastic spandex to knit Structure (2), then use chemical fiber filaments and elastic fibers to knit Structure (3), and finally knit Structure (4) terry structure; S3. Post-finishing process: Perform pre-shaping at a temperature of 150-170°C for 15-25s, and then perform raising treatment and shaping treatment to make the fabric reach the required style and performance.

7. The preparation method of a warm fleece fabric for multi-fiber integrated fleece four-way stretch shark pants according to claim 6, characterized in that: In step S2, when knitting Structure (3), use electronic needle selection technology to precisely control the coil structure, ensure the consistency and stability of the double rib structure, and improve the overall quality of the fabric.

8. The preparation method of a warm fleece fabric for multi-fiber integrated fleece four-way stretch shark pants according to claim 6, characterized in that: In step S3, add pre-shrinking and water treatment before the raising treatment, and control the pre-shrinking rate at 3%-5% to reduce the shrinkage phenomenon of the fabric in subsequent use and improve the dimensional stability.

9. The preparation method of a warm fleece fabric for multi-fiber integrated fleece four-way stretch shark pants according to claim 6, characterized in that: In step S2, control the machine speed at 15-25r / min and the yarn feeding tension at 10-20N during the knitting process.

10. The preparation method of a warm fleece fabric for multi-fiber integrated fleece four-way stretch shark pants according to claim 6, characterized in that: In the step S3, the speed of the brushing treatment is 10 - 15 m / min, the rotational speed of the brushing roller is 800 - 1200 r / min, the setting temperature of the setting treatment is 160 - 180 °C, and the time is 20 - 30 s.

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