Light, warm, skin-friendly, environment-friendly and degradable biological warm velvet fabric and preparation process thereof

Abstract

The invention provides a light, warm, skin-friendly, environment-friendly and degradable biological warm velvet fabric which comprises the following components in parts by weight: 90-93 parts of composite fibers and 7-10 parts of elastic yarns, the composite fiber comprises polylactic acid fiber and high moisture absorption rate fiber in a weight ratio of (50-90): (10-50); the biological warm velvet fabric is woven into a complete texture by two paths of looping systems, the first path of looping is performed by a first needle, and the second path of looping is performed by a floating thread or doubling stitch; floating threads or tucking of the first needle in the second path, and looping of the second needle; the first yarn is fed in the first path, and the elastic yarn is fed along with the composite fiber; the second yarn is fed in the second path, and the elastic yarn is fed along with the composite fiber; each of the first yarns and the second yarns comprises polylactic acid fibers and high-moisture-absorption-rate fibers in the weight ratio of (50-90): (10-50). According to the invention, raising treatment is carried out on dyeing and finishing, so that the heat retention property of the fabric is improved, and the skin-friendly property of the fabric is improved; the skin-friendly moisturizing auxiliary is added, so that the wearing comfort of the fabric is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, and in particular to a light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric and a preparation process thereof. Background Art

[0002] As the global climate change problem becomes increasingly serious, the country's attention to environmental protection and carbon neutrality continues to deepen. Environmental protection and sustainable development have become important strategies for national development. All walks of life are actively seeking environmentally friendly and low-carbon development paths; in the apparel industry, this means the need to develop and use more environmentally friendly and renewable materials, reduce carbon emissions in the production process, and reduce the impact on the environment.

[0003] On the other hand, with the improvement of people's quality of life and the enhancement of environmental awareness, the clothing industry is facing the pressure of transformation and upgrading. On the consumer side, users' demand for clothing has gradually changed from simple warmth and covering the body to the pursuit of lightness, comfort and warmth performance. This demand is particularly prominent in autumn and winter. Although traditional heavy clothing has good warmth performance, it often sacrifices the lightness and comfort of clothing. Traditional thermal insulation materials such as polyester and other petroleum-based materials have poor skin affinity, and waste is difficult to degrade, which pollutes the environment. It is contrary to the current national advocacy of environmental protection and carbon neutrality, and cannot meet the modern user's pursuit of comfort and functionality.

[0004] This patented technology proposes an innovative technology for thin and warm fabrics combined with environmentally friendly materials, aiming to meet users' needs for light and comfortable clothing, while actively responding to the country's advocacy of environmental protection and carbon neutrality. With the continuous development of technology and the continuous expansion of the market, it is believed that this new type of fabric will be widely used in the clothing industry in the future, and will make positive contributions to promoting green development and achieving carbon neutrality goals. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric and its preparation process, and improve the light, warm and comfortable performance of the fabric.

[0006] The technical solution adopted by the present invention is:

[0007] A light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric, wherein, by weight, the biological warm fleece fabric comprises 90-93 parts of composite fibers and 7-10 parts of elastic yarns; the composite fibers comprise polylactic acid fibers and high moisture absorption fibers in a weight ratio of 50-90:10-50;

[0008] The biological warm fleece fabric is woven into a complete structure by a two-way looping system, wherein the first way is looped by needle No. 1 and the second way is floating or tucking by needle No. 2; the second way is looped by needle No. 1 and the second way is floating or tucking by needle No. 2;

[0009] The first yarn is fed into the first path, and the elastic yarn is fed together with the first yarn;

[0010] The second yarn is fed into the second path, and the elastic yarn is fed together with the second yarn;

[0011] The first yarn and the second yarn both include polylactic acid fiber and high moisture absorption fiber in a weight ratio of 50-90:10-50.

[0012] The first yarn and the second yarn both include polylactic acid fiber and high moisture absorption fiber in a weight ratio of 50-90:10-50.

[0013] Preferably, the light, warm, skin-friendly, environmentally friendly and degradable bio-warm velvet fabric, wherein the high moisture absorption fiber is selected from one or more of long-staple cotton, wool, silk, acetate fiber, modal fiber and lyocell fiber; the elastic yarn is selected from one of melt-spun spandex or polyolefin filament.

[0014] Preferably, the light, warm, skin-friendly, environmentally friendly and degradable bio-warm fleece fabric, wherein the yarn length of the polylactic acid fiber and the high moisture absorption fiber is 2.4-2.9 mm, and the length of the elastic silk thread is 0.8-1 mm.

[0015] The present application also provides a preparation process of a light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric, which includes the following steps:

[0016] Step S1. opening and removing impurities from polylactic acid fiber and high moisture absorption fiber, mixing and combing, and winding into first yarn and second yarn through a roving and spun yarn process; feeding the first yarn and elastic yarn into a first path of a weft knitting machine at the same time, and feeding the second yarn and elastic yarn into a second path of the weft knitting machine at the same time, knitting with two paths as one cycle, and repeating the process to obtain a fabric grey cloth;

[0017] Step S2. Feeding the fabric to the setting machine for presetting, then feeding the presetting fabric to the dyeing machine for bleaching, and then dyeing the bleached fabric in the dyeing machine;

[0018] Step S3. Feeding the fabric processed in step S2 to the setting machine, then adding the first additive into the rolling groove, so that the fabric passes through the rolling groove, is dipped into the first additive, and passes through the setting machine at a uniform speed;

[0019] Step S4. Performing a roughening treatment on the front and / or back surface of the fabric processed in step S3;

[0020] Step S5. Shearing the front and / or back of the fabric by a shearing machine;

[0021] Step S6. Feed the fabric processed in step S5 to a setting machine, then add a second auxiliary agent into the rolling groove, make the fabric pass through the rolling groove to immerse the second auxiliary agent and pass through the setting machine at a uniform speed to obtain a bio-warm fleece fabric.

[0022] Preferably, in the process for preparing the light, warm, skin-friendly, environmentally friendly and degradable bio-warm fleece fabric, the first auxiliary agent in step S3 comprises 1-5% of a sanding softener and 95-99% of water.

[0023] Preferably, in the preparation process of the light, warm, skin-friendly, environmentally friendly and degradable bio-warm velvet fabric, the liquid squeezing rate in step S3 is 70% to 75%, the setting temperature of the setting machine is 110-120°C, and the speed of feeding the fabric grey cloth to the setting machine is 18 to 22 m / min.

[0024] Preferably, in the preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric, the distance between the flat knife and the round knife of the shearing machine during the shearing process in step S5 is 0.3-0.5 mm, and the speed is 28-30 m / min.

[0025] Preferably, in the process for preparing the light, warm, skin-friendly, environmentally friendly and degradable bio-warm fleece fabric, the second auxiliary agent in step S6 comprises 3-7% avocado oil softener and 93-97% water.

[0026] Preferably, in the preparation process of the light, warm, skin-friendly, environmentally friendly and degradable bio-warm velvet fabric, the liquid pressing rate in step S6 is 70% to 75%, the setting temperature of the setting machine is 110 to 120°C, and the speed of feeding the fabric grey cloth to the setting machine is 18 to 22 m / min.

[0027] Advantages of the present invention:

[0028] (1) The light, warm, skin-friendly, environmentally friendly and degradable bio-warm velvet fabric and its preparation process of the present invention are as follows: the fabric blank is dipped in the first auxiliary agent through a rolling groove and passed through a shaping machine at a uniform speed, and then subjected to a napping treatment to enhance the warmth retention of the fabric and improve its skin-friendliness, so that the final fabric has fine and uniform fluff, and is not prone to pilling and knotting after washing, and the fluff is dense. Different from the general sandpaper or brush napping, the napping process of the present invention first uses a steel needle napping machine to pull out long fluff fibers, and then uses a shearing machine to cut them short and flat, so that the fluff is short, dense, uniform and flat.

[0029] (2) The light, warm, skin-friendly, environmentally friendly and degradable bio-warm velvet fabric of the present invention and its preparation process, the sheared fabric is impregnated with a second auxiliary agent through a rolling groove, the second auxiliary agent includes an avocado oil softener, and the fabric is impregnated with the avocado oil softener to further improve the wearing comfort of the fabric, reduce the discomfort during wearing, and make the fabric more skin-friendly.

[0030] (3) The light, warm, skin-friendly, environmentally friendly and degradable bio-warm velvet fabric and its preparation process of the present invention, the main material polylactic acid is a new type of sustainable bio-based environmentally friendly material, which can replace petroleum-based products such as polyester, conforms to the national green development concept, fills the market gap, and expands the application scenarios of new materials; the bio-warm velvet fabric provided by the present invention is higher in thickness, fluffiness, and thermal insulation rate than conventional fabrics, and can be lighter but more fluffy and warm; in addition, the skin-friendly and anti-static properties are equivalent to cotton fabrics, and it is soft and skin-friendly without static electricity problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a weaving structure diagram of comparative example 1-2 of the present invention.

[0032] Figure 2 This is a diagram of the weaving structure of embodiments 1-4 of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with specific embodiments.

[0034] Example 1

[0035] A light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric, wherein the biological warm fleece fabric comprises 94 parts of composite fibers and 6 parts of elastic yarns by weight; the composite fibers comprise polylactic acid fibers and long-staple cotton in a weight ratio of 50:50;

[0036] like Figure 2 The biological warm fleece fabric is woven into a complete structure by a two-way looping system, wherein the first way is looped by needle No. 1 and the second way is floating; the second way is floating by needle No. 1 and the second way is looped by needle No. 2;

[0037] The first yarn is fed into the first path, and the elastic yarn is fed together with the first yarn;

[0038] The second yarn is fed into the second path, and the elastic yarn is fed together with the second yarn;

[0039] The first yarn and the second yarn both include 32S compact siro-spun yarns of polylactic acid fiber and long-staple cotton in a weight ratio of 50:50, and the elastic yarn fineness specification is 30D.

[0040] The elastic yarn is made of melt-spun spandex that can be low-temperature fixed at 110-120°C; the length of the 32S compact siro-spun yarn is 2.86mm, and the length of the elastic yarn is 0.95mm.

[0041] The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric of this embodiment includes the following steps:

[0042] Step S1. opening and removing impurities from polylactic acid fiber and long-staple cotton, mixing and combing, and then winding the fibers into first yarn and second yarn through a roving and spun yarn process. The first yarn and the elastic yarn are simultaneously fed into a first pass of a 24-needle 34-inch single-sided weft knitting machine, and the second yarn and the elastic yarn are simultaneously fed into a second pass of a 24-needle 34-inch single-sided weft knitting machine. The two passes are used as a cycle for weaving, and the process is repeated to obtain a fabric grey cloth.

[0043] Step S2. Feeding the fabric to the setting machine for presetting, then feeding the presetting fabric to the dyeing machine for bleaching, and then dyeing the bleached fabric in the dyeing machine;

[0044] The predetermined rolling liquid rate is 75%, the temperature is 120°C, and the vehicle speed is 24m / min; the bleaching temperature is 60°C, the time is 40min, the bath ratio is 1:8, and the bleaching agent includes 1.5% BFA200 degreasing agent of Rudolf Company and 5.8ml / L hydrogen peroxide; the bath ratio of the dyeing treatment is 1:8, the dyeing temperature is 100°C, the dyeing insulation time is 30min, and the dyes include 0.2% disperse red, 0.2% disperse yellow, 1.5% disperse blue, and 0.2mL / L acetic acid.

[0045] Step S3. Feed the fabric to the setting machine, then add the first auxiliary agent into the rolling groove, the first auxiliary agent includes 3% of Rudolf's PERRUSTOL SUB sanding softener and 97% of water, make the fabric pass through the rolling groove to roll the first auxiliary agent and pass through the setting machine at a uniform speed, the rolling rate is 75%, the setting temperature of the setting machine is 120° C., and the speed of the fabric feeding the fabric to the setting machine is 18 m / min;

[0046] Step S4. Performing a roughening treatment on the reverse side of the fabric processed in step S3;

[0047] Step S5. The reverse side of the fabric is sheared by a shearing machine, the distance between the flat knife and the circular knife of the shearing machine is 0.5 mm, and the speed is 28 m / min;

[0048] Step S6. Feed the fabric grey cloth treated in step S5 to a setting machine, and then add a second auxiliary agent into the rolling groove, the second auxiliary agent includes 5% of Rudolf's avocado oil softener and 95% water, so that the fabric grey cloth is dipped into the second auxiliary agent through the rolling groove and passes through the setting machine at a uniform speed, the rolling rate is 75%, the setting temperature of the setting machine is 120°C, and the speed of feeding the fabric grey cloth to the setting machine is 18m / min, so as to obtain a bio-warm velvet fabric.

[0049] The bulkiness of the fabric after processing in step S3 is 5cm 3 / g or more; the wool length of the fabric after shearing in step S5 is not more than 0.5mm; the width of the fabric after the finished product is finalized in step S6 is 160-165cm, and the weight is 230g / m 2 ; The fabric is light, soft and warm, and has anti-static properties.

[0050] Example 2

[0051] A light, warm, skin-friendly, environmentally friendly and degradable bio-warm fleece fabric, wherein the bio-warm fleece fabric comprises 93 parts of composite fibers and 7 parts of elastic yarns by weight; the composite fibers comprise polylactic acid fibers and high moisture absorption fibers in a weight ratio of 90:10;

[0052] like Figure 2 The biological warm fleece fabric is woven into a complete structure by a two-way looping system, wherein the first way is looped by needle No. 1 and tucked by needle No. 2; the second way is tucked by needle No. 1 and looped by needle No. 2;

[0053] The first yarn is fed into the first path, and the elastic yarn is fed together with the first yarn;

[0054] The second yarn is fed into the second path, and the elastic yarn is fed together with the second yarn;

[0055] The first yarn comprises a 60S compact siro-spun yarn of polylactic acid fiber and wool in a weight ratio of 90:10; the second yarn comprises a 60S compact siro-spun yarn of polylactic acid fiber and mulberry silk in a weight ratio of 90:10, and the elastic yarn fineness specification is 20D;

[0056] The elastic yarn is a polyolefin filament that can be low-temperature set at 110-120°C; the yarn length of polylactic acid fiber, wool and mulberry silk is 2.4mm, and the length of the elastic yarn is 0.8mm.

[0057] The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric of this embodiment includes the following steps:

[0058] Step S1. opening and removing impurities from polylactic acid fiber and high moisture absorption fiber, mixing and combing, and winding into first yarn and second yarn through a roving and spun yarn process; feeding the first yarn and elastic yarn into a first path of a weft knitting machine at the same time, and feeding the second yarn and elastic yarn into a second path of the weft knitting machine at the same time, knitting with two paths as one cycle, and repeating the process to obtain a fabric grey cloth;

[0059] Step S2. Feeding the fabric to the setting machine for presetting, then feeding the presetting fabric to the dyeing machine for bleaching, and then dyeing the bleached fabric in the dyeing machine;

[0060] The predetermined rolling liquid rate is 75%, the temperature is 120°C, and the vehicle speed is 30m / min; the bleaching temperature is 60°C, the time is 40min, the bath ratio is 1:8, the bleaching agent includes 1.5% BFA200 degreasing agent of Rudolf Company, 5.8ml / L hydrogen peroxide, and 0.5% RUCOLAN WSH wool and silk protective agent of Rudolf Company; the bath ratio of the dyeing treatment is 1:8, the dyeing temperature is 100°C, the dyeing insulation time is 30min, the dyeing agent includes 0.2% disperse red, 0.2% disperse yellow, 1.5% disperse blue, 0.2mL / L acetic acid, and 0.5% RUCOLAN WSH wool and silk protective agent of Rudolf Company.

[0061] Step S3. Feed the fabric to the setting machine, then add the first auxiliary agent into the rolling groove, the first auxiliary agent includes 3% of Rudolf's PERRUSTOL SUB sanding softener and 97% of water, make the fabric pass through the rolling groove to roll the first auxiliary agent and pass through the setting machine at a uniform speed, the rolling rate is 70%, the setting temperature of the setting machine is 110° C., and the speed of the fabric feeding the fabric to the setting machine is 22 m / min;

[0062] Step S4. Performing a roughening treatment on the reverse side of the fabric processed in step S3;

[0063] Step S5. The reverse side of the fabric is sheared by a shearing machine, the distance between the flat knife and the circular knife of the shearing machine is 0.3 mm, and the speed is 30 m / min;

[0064] Step S6. Feed the fabric grey cloth treated in step S5 to a setting machine, and then add a second auxiliary agent into the rolling groove, the second auxiliary agent includes 5% of Rudolf's avocado oil softener and 95% water, so that the fabric grey cloth is dipped into the second auxiliary agent through the rolling groove and passes through the setting machine at a uniform speed, the rolling rate is 70%, the setting temperature of the setting machine is 110°C, and the speed of feeding the fabric grey cloth to the setting machine is 22m / min, so as to obtain a bio-warm velvet fabric.

[0065] The bulkiness of the fabric after processing in step S3 is 5cm 3 / g or more; the wool length of the fabric after shearing in step S5 is not more than 0.3mm; the width of the fabric after the finished product is finalized in step S6 is 170cm, and the weight is 160g / m 2 ; The fabric is light, soft and warm, and has anti-static properties.

[0066] Example 3

[0067] A light, warm, skin-friendly, environmentally friendly and degradable bio-warm fleece fabric, wherein the bio-warm fleece fabric comprises 93 parts of composite fibers and 7 parts of elastic yarns by weight; the composite fibers comprise polylactic acid fibers and high moisture absorption fibers in a weight ratio of 70:30;

[0068] like Figure 2 The biological warm fleece fabric is woven into a complete structure by a two-way looping system, wherein the first way is looped by needle No. 1 and the second way is floating; the second way is floating by needle No. 1 and the second way is looped by needle No. 2;

[0069] The first yarn is fed into the first path, and the elastic yarn is fed together with the first yarn;

[0070] The second yarn is fed into the second path, and the elastic yarn is fed together with the second yarn;

[0071] The first yarn comprises a 40S compact siro-spun yarn of polylactic acid fiber and modal fiber in a weight ratio of 70:30; the first yarn and the second yarn both comprise a 40S compact siro-spun yarn of polylactic acid fiber and lyocell fiber in a weight ratio of 70:30, and the elastic yarn fineness specification is 30D;

[0072] The elastic yarn is a polyolefin filament that can be low-temperature set at 110-120°C; the yarn length of polylactic acid fiber, modal and lyocell is 2.9mm, and the length of the elastic yarn is 1mm.

[0073] The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric of this embodiment includes the following steps:

[0074] Step S1. opening and removing impurities from polylactic acid fiber and high moisture absorption fiber, mixing and combing, and winding into first yarn and second yarn through a roving and spun yarn process; feeding the first yarn and elastic yarn into a first path of a weft knitting machine at the same time, and feeding the second yarn and elastic yarn into a second path of the weft knitting machine at the same time, knitting with two paths as one cycle, and repeating the process to obtain a fabric grey cloth;

[0075] Step S2. Feeding the fabric to the setting machine for presetting, then feeding the presetting fabric to the dyeing machine for bleaching, and then dyeing the bleached fabric in the dyeing machine;

[0076] The pre-molding liquid rolling rate is 75%, the temperature is 120°C, and the vehicle speed is 30m / min; the bleaching temperature is 60°C, the time is 40min, the bath ratio is 1:8, the bleaching agent includes 1.5% of Rudolf's BFA200 degreasing agent, 5.8ml / L of hydrogen peroxide, the bath ratio of dyeing treatment is 1:8, the dyeing temperature is 100°C, the dyeing holding time is 30min, and the dyeing agent includes 0.2% disperse red, 0.2% disperse yellow, 1.5% disperse blue, and 0.2mL / L acetic acid;

[0077] Step S3. Feed the fabric to the setting machine, then add the first auxiliary agent into the rolling groove, the first auxiliary agent includes 3% of Rudolf's PERRUSTOL SUB sanding softener and 97% of water, make the fabric pass through the rolling groove to roll the first auxiliary agent and pass through the setting machine at a uniform speed, the rolling rate is 70%, the setting temperature of the setting machine is 120°C, and the speed of the fabric feeding the fabric to the setting machine is 22m / min;

[0078] Step S4. Performing a roughening treatment on the front and back sides of the fabric processed in step S3;

[0079] Step S5. The front and back sides of the fabric are sheared by a shearing machine, the distance between the flat knife and the circular knife of the shearing machine is 0.3 mm, and the speed is 30 m / min;

[0080] Step S6. Feed the fabric grey cloth treated in step S5 to the setting machine, and then add the second auxiliary agent in the rolling groove, the second auxiliary agent includes 5% of Rudolf's avocado oil softener and 95% water, so that the fabric grey cloth is dipped in the second auxiliary agent through the rolling groove and passes through the setting machine at a uniform speed, the rolling rate is 70%, the setting temperature of the setting machine is 120°C, and the speed of feeding the fabric grey cloth to the setting machine is 22m / min, so as to obtain the bio-warm velvet fabric.

[0081] The bulkiness of the fabric after processing in step S3 is 5cm 3 / g or more; the wool length of the fabric after shearing in step S5 is not more than 0.3mm; the width of the fabric after the finished product is finalized in step S6 is 175cm, and the weight is 190g / m 2 ; The fabric is light, soft and warm, and has anti-static properties.

[0082] Example 4

[0083] A light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric, the biological warm fleece fabric comprising 92 parts of composite fibers and 8 parts of elastic yarns by weight; the composite fibers comprise polylactic acid fibers and acetate fibers in a weight ratio of 80:20;

[0084] like Figure 2 The biological warm fleece fabric is woven into a complete structure by a two-way looping system, wherein the first way is looped by needle No. 1 and tucked by needle No. 2; the second way is tucked by needle No. 1 and looped by needle No. 2;

[0085] The first yarn is fed into the first path, and the elastic yarn is fed together with the first yarn;

[0086] The second yarn is fed into the second path, and the elastic yarn is fed together with the second yarn;

[0087] The first yarn and the second yarn both include 50S compact siro-spun yarns of polylactic acid fiber and acetate fiber in a weight ratio of 80:20; the fineness specification of the elastic yarn is 30D.

[0088] The elastic yarn is a polyolefin spandex that can be low-temperature set at 110-120°C; the yarn length of polylactic acid fiber and acetate fiber is 2.68mm, and the length of the elastic yarn is 0.89mm.

[0089] The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric of this embodiment includes the following steps:

[0090] Step S1. opening and removing impurities from polylactic acid fiber and acetate fiber, mixing and combing, and winding into first yarn and second yarn through a roving and spun yarn process; feeding the first yarn and elastic yarn into a first path of a weft knitting machine at the same time, and feeding the second yarn and elastic yarn into a second path of the weft knitting machine at the same time, knitting with two paths as one cycle, and repeating the process to obtain a fabric grey cloth;

[0091] Step S2. Feeding the fabric to the setting machine for presetting, then feeding the presetting fabric to the dyeing machine for bleaching, and then dyeing the bleached fabric in the dyeing machine;

[0092] The predetermined rolling liquid rate is 75%, the temperature is 120°C, and the vehicle speed is 24m / min; the bleaching temperature is 60°C, the time is 40min, the bath ratio is 1:8, the bleaching agent includes 1.5% BFA200 degreasing agent of Rudolf Company, 5.8ml / L hydrogen peroxide, the bath ratio of dyeing treatment is 1:8, the dyeing temperature is 100°C, the dyeing insulation time is 30min, and the dyeing agent includes 0.2% disperse red, 0.2% disperse yellow, 1.5% disperse blue, and 0.2mL / L acetic acid.

[0093] Step S3. Feed the fabric to the setting machine, then add the first auxiliary agent into the rolling groove, the first auxiliary agent includes 3% of Rudolf's PERRUSTOL SUB sanding softener and 97% of water, make the fabric pass through the rolling groove to roll the first auxiliary agent and pass through the setting machine at a uniform speed, the rolling rate is 75%, the setting temperature of the setting machine is 110° C., and the speed of the fabric feeding the fabric to the setting machine is 18 m / min;

[0094] Step S4. Performing a roughening treatment on the reverse side of the fabric processed in step S3;

[0095] Step S5. The reverse side of the fabric is sheared by a shearing machine, the distance between the flat knife and the circular knife of the shearing machine is 0.3 mm, and the speed is 28 m / min;

[0096] Step S6. Feed the fabric grey cloth treated in step S5 to a setting machine, then add a second auxiliary agent into the rolling groove, the second auxiliary agent includes 5% of Rudolf's avocado oil softener and 95% water, so that the fabric grey cloth is dipped into the second auxiliary agent through the rolling groove and passes through the setting machine at a uniform speed, the rolling rate is 75%, the setting temperature of the setting machine is 110°C, and the speed of feeding the fabric grey cloth to the setting machine is 18m / min, so as to obtain a bio-warm velvet fabric.

[0097] The bulkiness of the fabric after processing in step S3 is 5cm 3 / g or more; the wool length of the fabric after shearing in step S5 is not more than 0.3mm; the width of the fabric after the finished product is finalized in step S6 is 190cm, and the weight is 170g / m 2 ; The fabric is light, soft and warm, and has anti-static properties.

[0098] Comparative Example 1

[0099] A light, warm, skin-friendly, environmentally friendly and biodegradable warm fleece fabric, made of 32S 100% cotton yarn on a 24-needle 34-inch single-sided weft knitting machine to weave the fabric. All needle cylinders are filled with needles and woven according to the single-sided weft plain needle structure. The weaving process is one cycle for each route, and the above-mentioned fabric is obtained over and over again; the structural weaving diagram is as follows Figure 1 As shown, the yarn is 32S 100% cotton, the elastic yarn is conventional spandex, the yarn length is 3.2 mm, and the elastic yarn length is 1 mm.

[0100] The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric of this comparative example comprises the following steps:

[0101] Step S1. Feed the cotton yarn and the elastic yarn simultaneously into a 24-needle 34-inch single-sided weft knitting machine for one cycle per route, and repeat the process to obtain a fabric grey cloth;

[0102] Step S2. Feeding the fabric to the setting machine for presetting, then feeding the presetting fabric to the dyeing machine for bleaching, and then dyeing the bleached fabric in the dyeing machine;

[0103] The predetermined rolling liquid rate is 75%, the temperature is 185°C, and the vehicle speed is 30m / min; the bleaching temperature is 90°C, the time is 40min, the bath ratio is 1:8, and the bleaching agent includes 1.5% BFA200 degreasing agent of Rudolf Company and 5.8ml / L hydrogen peroxide; the bath ratio of the dyeing treatment is 1:8, the dyeing temperature is 60°C, the dyeing insulation time is 30min, and the dyeing agent includes 0.1% disperse red, 0.03% disperse yellow, 0.2% disperse blue, 0.2mL / L acetic acid, 5g / L soda ash, and 10g / L sodium sulfate.

[0104] Step S3. The finished product is stretched and shaped. The cloth is fed to the shaping machine. 20 g / L of avocado oil softener from Rudolf Company is added to the rolling groove. The fabric grey cloth is passed through the rolling groove to be dipped in the softener and passed through the shaping machine at a uniform speed. The rolling rate is 75%, the temperature is 180°C, and the speed is 20 m / min, and finally the finished fabric is obtained.

[0105] Comparative Example 2

[0106] 100D polyester yarn is used to spin fabric grey cloth on a 24-needle 34-inch single-sided weft knitting machine. All needle cylinders are filled with needles and woven according to the single-sided weft plain needle structure. The weaving process is one cycle for each route, and it is repeated over and over again to obtain the above-mentioned grey cloth. The structural weaving diagram is as follows Figure 1 As shown, the yarn is 100D polyester yarn, the stretch yarn is regular spandex, the yarn length is 2.8mm, and the stretch yarn length is 1mm.

[0107] The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric of this comparative example comprises the following steps:

[0108] Step S1. Feeding the polyester yarn and the elastic yarn simultaneously into a 24-needle 34-inch single-sided weft knitting machine for one cycle per route, and knitting the fabric grey cloth repeatedly;

[0109] Step S2. Feeding the fabric to the setting machine for presetting, then feeding the presetting fabric to the dyeing machine for bleaching, and then dyeing the bleached fabric in the dyeing machine;

[0110] The predetermined rolling liquid rate is 75%, the temperature is 180°C, and the vehicle speed is 30m / min; the bleaching temperature is 80°C, the time is 20min, the bath ratio is 1:6, the bleaching agent includes 1.5% BFA200 degreasing agent of Rudolf Company, 1% soda ash, the bath ratio of dyeing treatment is 1:10, the dyeing temperature is 130°C, the dyeing insulation time is 30min, the dyeing agent includes 0.2% disperse red, 0.2% disperse yellow, 1.5% disperse blue, and 0.2mL / L acetic acid.

[0111] Step S3. The finished product is stretched and shaped. The cloth is fed to the shaping machine. 20 g / L of avocado oil softener from Rudolf Company is added to the rolling groove. The fabric grey cloth is passed through the rolling groove to be dipped in the softener and passed through the shaping machine at a uniform speed. The rolling rate is 75%, the temperature is 180°C, and the speed is 20 m / min, and finally the finished fabric is obtained.

[0112] The finished fabrics of Examples 1-4 and Comparative Examples 1-2 were subjected to performance tests, and the test results are shown in Table 1.

[0113] Table 1

[0114]

[0115] It can be seen from the data in Table 1 that the fabric design scheme provided by the present invention is superior to the comparative fabric in thickness, fluffiness and thermal insulation rate, so it can be lighter but fluffier and warmer; in addition, it is comparable to cotton-spandex fabric in terms of wetting time and anti-static properties, is soft and skin-friendly, and has no static electricity problems, making it suitable for wearing in autumn and winter; in addition, the raw material of this product is a new type of bio-based fiber, which is an environmentally friendly material that can replace petroleum-based products such as polyester. It has the characteristics of being plantable and easy to plant, and the waste being naturally degradable in nature. It is a sustainable ecological fiber that complies with the national green development strategy of carbon neutrality and carbon peak.

[0116] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric, characterized in that: The biological warm fleece fabric comprises 90-93 parts of composite fibers and 7-10 parts of elastic yarns by weight; the composite fibers comprise polylactic acid fibers and high moisture absorption fibers in a weight ratio of 50-90:10-50; The biological warm fleece fabric is woven into a complete structure by a two-way looping system, wherein the first way is looped by needle No. 1, and the second way is floating or tucking by needle No. 2; the second way is looped by needle No. 1, and the second way is floating or tucking by needle No. 2; The first yarn is fed into the first path, and the elastic yarn is fed together with the first yarn; The second yarn is fed into the second path, and the elastic yarn is fed together with the second yarn; The first yarn and the second yarn both include polylactic acid fiber and high moisture absorption fiber in a weight ratio of 50-90:10-50.

2. The light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric according to claim 1 is characterized in that: The high moisture absorption fiber is selected from one or more of long-staple cotton, wool, silk, acetate fiber, modal fiber and lyocell fiber; the elastic yarn is selected from one of melt-spun spandex or polyolefin filament.

3. The light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric according to claim 1 is characterized in that: The yarn lengths of the polylactic acid fibers and high moisture absorption fiber are 2.4 to 2.9 mm, and the length of the elastic thread is 0.8 to 1 mm.

4. The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step S1. opening and removing impurities from polylactic acid fiber and high moisture absorption fiber, mixing and combing, and winding into first yarn and second yarn through a roving and spun yarn process; feeding the first yarn and elastic yarn into a first path of a weft knitting machine at the same time, and feeding the second yarn and elastic yarn into a second path of the weft knitting machine at the same time, knitting with two paths as one cycle, and repeating the process to obtain a fabric grey cloth; Step S2. Feeding the fabric to the setting machine for presetting, then feeding the presetting fabric to the dyeing machine for bleaching, and then dyeing the bleached fabric in the dyeing machine; Step S3. Feeding the fabric processed in step S2 to the setting machine, then adding the first additive into the rolling groove, so that the fabric passes through the rolling groove, is dipped into the first additive, and passes through the setting machine at a uniform speed; Step S4. Performing a roughening treatment on the front and / or back surface of the fabric processed in step S3; Step S5. Shearing the front and / or back of the fabric by a shearing machine; Step S6. Feed the fabric processed in step S5 to a setting machine, then add a second auxiliary agent into the rolling groove, make the fabric pass through the rolling groove to immerse the second auxiliary agent and pass through the setting machine at a uniform speed to obtain a bio-warm fleece fabric.

5. The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric according to claim 1 is characterized in that: In step S3, the first auxiliary agent includes 1-5% of a sanding softener and 95-99% of water.

6. The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric according to claim 1 is characterized in that: In step S3, the squeezing rate is 70% to 75%, the setting temperature of the setting machine is 110-120° C., and the speed of feeding the fabric grey cloth to the setting machine is 18 to 22 m / min.

7. The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric according to claim 1 is characterized in that: During the shearing process in step S5, the distance between the flat knife and the circular knife of the shearing machine is 0.3-0.5 mm, and the speed is 28-30 m / min.

8. The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric according to claim 1, characterized in that: In step S6, the second auxiliary agent includes 3-7% avocado oil softener and 93-97% water.

9. The preparation process of the light, warm, skin-friendly, environmentally friendly and degradable biological warm fleece fabric according to claim 1, characterized in that: In step S6, the squeezing rate is 70% to 75%, the setting temperature of the setting machine is 110 to 120° C., and the speed of feeding the fabric grey cloth to the setting machine is 18 to 22 m / min.

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