Pure cotton peach skin yarn-dyed fabric and processing method thereof

Abstract

This invention relates to the field of textile technology, specifically to a pure cotton peach-skin velvet yarn-dyed fabric and its processing method. The method includes the following steps: after dyeing the fabric yarn, it is woven; the greige fabric undergoes singeing, desizing, loose mercerizing, loose washing, diamond abrasion brushing, stretching, and steam pre-shrinking to obtain a pure cotton yarn-dyed fabric with a peach-skin velvet feel. This method overcomes the problems of existing pure cotton peach-skin velvet fabrics having insufficiently short and even nap, insufficient density, and a lack of fullness and elasticity, resulting in an unsatisfactory peach-skin velvet effect. It creates a short and dense layer of nap on the surface of the pure cotton fabric, resulting in a delicate, full, soft, and elastic feel. Furthermore, it possesses excellent anti-pilling and anti-fuzzing properties, washability, and comfortable elasticity, offering a better touch and a more comfortable fit.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, in particular to a pure cotton peach skin yarn-dyed fabric and a processing method thereof. Background Art

[0002] The surface of peach skin fabric is covered with a layer of short and dense fluff, which gives the fabric a soft luster and a delicate and plump feel. Therefore, peach skin fabric has long been loved by customers.

[0003] The materials used in peach skin fabrics nowadays are polyester, nylon, regenerated cellulose fibers, etc. The processing method of peach skin effect is closely related to the materials. For polyester, nylon, regenerated cellulose fibers, etc., the main process is to use alkali reduction, fiber opening and other processes to produce ultrafine fibers, and then combine enzyme washing, brushing, sanding and other processes to produce short fluff on the surface of the fabric. The process is relatively mature and the effect is good. However, the peach skin processing method for pure cotton fabrics is relatively limited. Chinese patent application CN104120606A, published on October 29, 2014, discloses a production process for eco-friendly peach skin home textile fabrics. The production process steps are as follows: pretreatment of grey cloth → primary fibrillation → enzyme defibrillation → dyeing → secondary fibrillation → softening and resin finishing; the grey cloth is made of 65-70% by weight Tencel G100 yarn and 30-35% cotton yarn interwoven with each other. However, the pure cotton fabric prepared by this method has poor effect, and the peach skin effect is not good. Chinese patent application CN105239408A, published on April 24, 2018, introduces a process for producing antibacterial imitation peach skin fabric, which makes full use of biological fermentation technology for modification, and produces imitation peach skin fabric with good hand feel, very soft, very good drape, and good antibacterial properties. It is a new type of fabric with great market potential. Steps: soybean fiber, cotton fiber, and aloe fiber are blended; conventional singeing, whitening, and drying of the blended fabric; dry grinding with metal abrasives; microbial modification treatment; polishing treatment; dyeing, shaping, and drying according to conventional methods to obtain the finished product. The fluff produced by this method is often not dense enough, and the length of the fluff is difficult to control, so it is difficult to achieve the short and dense fluffing effect of peach skin. Chinese patent application CN112981803A, published on June 18, 2021, discloses a high-yarn-count peach-skin pure cotton fabric and its preparation method and application. The main method is to use multiple light raising treatments after liquid ammonia mercerization, and then perform low-fire singeing after raising. After multiple raising, the surface of the fabric will produce a lot of fluff of varying lengths, and the subsequent light singeing process cannot process the length of the fluff on the fabric to a dense and short degree, which cannot meet the requirements of peach skin. Therefore, there is an urgent need for a processing method for pure cotton peach skin fabric. Summary of the invention

[0004] In view of the above deficiencies in the prior art, the object of the present invention is to provide a method for processing pure cotton peach skin suede yarn-dyed fabrics, which can overcome the problem that the fluff on the surface of the existing pure cotton peach skin suede fabrics is not short enough and not dense enough.

[0005] Another object of the present invention is to provide a pure cotton peach skin yarn-dyed fabric, the surface of which has a short and dense layer of fluff, and the fabric feels delicate, plump and soft.

[0006] The present invention is achieved by adopting the following technical solutions:

[0007] The processing method of the pure cotton peach skin yarn-dyed fabric comprises the following steps:

[0008] (1) Fabric specification design: Use pure cotton yarn and design fabric weaving parameters based on yarn count and fabric structure;

[0009] (2) Yarn dyeing: dyeing the pure cotton yarn using the form of tube dyeing to obtain dyed warp and weft yarns;

[0010] (3) Weaving: warping and sizing the dyed warp yarn obtained in step (2), and weaving according to the weaving parameters designed in step (1) to obtain a pure cotton color-dyed grey fabric;

[0011] (4) Finishing: singeing, desizing, loose pile mercerizing, loose pile washing, emery sanding, tentering and steam preshrinking are performed on the pure cotton color-dyed fabric obtained in step (3) to obtain a pure cotton peach skin color-dyed fabric;

[0012] In the step (1), the pure cotton yarn is a single yarn or a ply yarn, and the yarn count is one or more of 10-70 Ne; the spinning method of the pure cotton yarn in the fabric is one of ordinary ring spinning, compact ring spinning, siro spinning, compact siro spinning, and air spinning; the fabric structure is one of plain weave, twill weave, satin weave, heavy weave or jacquard; the warp finishing shrinkage is 9%-14%, and the weft finishing shrinkage is 9%-20%.

[0013] In the step (2), the pure cotton yarn is pre-treated and then dyed at a dyeing temperature of 60-90°C for a heat preservation time of 40-60 minutes, followed by color fixing, softening and drying.

[0014] In the step (4), the singeing is performed by a forward and reverse singeing method, the vehicle speed is 60-90 m / min, and the flame intensity is 10-15 mbar; amylase is used for desizing, the water washing temperature is 80-100°C, and after water washing, it is dried in a drying barrel at a speed of 60-90 m / min.

[0015] In the step (4), the loose pile mercerizing process uses a padding caustic soda solution, the concentration of the caustic soda solution is 8-15 degrees Baume, the alkali solution temperature is 25-30°C, the rolling rate of the padding car after alkali dipping is 50%-80%, and the coils are stacked for 0.5-2.0 hours after alkali rolling.

[0016] In the step (4), the loose pile washing process is to use a loose type washing machine for washing, use a relaxation tension of 60-70N, first use 40-60℃ water to wash for 5-10min, then add 1-3g / L of neutralizing acid to the 40-60℃ water, wash for 2-3min, so that the moisture content of the fabric is 40%-60%.

[0017] In the step (4), the sanding process is performed using a high-mesh diamond sanding machine, the sanding machine speed is 10-18 m / min, the sandpaper mesh is 400-800 mesh, the front and back sides of the fabric are sanded once each, and the sanding machine tension is 100-400N.

[0018] In the step (4), the tentering speed is 50-80 m / min, the overfeed rate is 2-5%, the drying room temperature is 110-150°C, the amount of polyurethane reinforcing agent is 10-40 g / L, and the amount of softener is 10-40 g / L; the softener is a silicone softener or a fatty acid softener.

[0019] In the step (4), the pre-shrinking speed is 20-40 m / min, the cloth is steam-shaped after entering, and after steam pre-shrinking, it is cold-air dried and then cooled to fall off, the steam pressure is 2.0-3.5 bar, and the steam temperature is 110-130°C.

[0020] The pure cotton peach skin velvet color-woven fabric is prepared by the processing method of the pure cotton peach skin velvet color-woven fabric described above.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) After the method of the present invention is used to sand the fabric, the fluff on the surface of the fabric is more uniform and dense. It is well known that cotton fibers will fully swell under the action of alkali when immersed in low tension, causing the fiber diameter to increase, forcing the fiber curvature radius at the fabric interlacing point to increase, causing the fabric to shrink in the warp and weft directions. In this method, the warp and weft directions of the fabric are both in a tension-free state during the loose pile mercerizing process. Combined with reasonable fabric weaving parameter design, sufficient shrinkage space is designed in the warp and weft directions of the fabric. Therefore, after loose pile mercerizing, the fabric can achieve greater shrinkage in the warp and weft directions, the fabric tightness is significantly increased, and the degree of buckling of the warp and weft points on the surface of the fabric is significantly increased. When sanding with corundum, the contact area between the fabric and the sandpaper is larger, the sanding is more complete, and it is easier to produce uniform and dense fluff.

[0023] (2) After the fabric is sanded using the method of the present invention, the fluff on the surface of the fabric is shorter. When the fabric enters the sanding process, the fabric from the previous process is washed in a loose pile and the moisture content of the fabric is reasonably controlled to obtain a damp fabric. The fabric is in tight contact with the corundum sanding roller, and the moisture causes a certain adhesion between the fibers in the yarn. Under the high-tight holding of the fabric and the sanding roller, and the adhesion between the fibers of the yarn, under the combined action, it is not easy for the fibers to be rubbed out of the yarn when subjected to external friction during the sanding process, and short fluff is formed under the high holding of the fabric and the corundum. Therefore, short fluff is mainly formed after sanding using the method of the present invention.

[0024] (3) The pure cotton peach skin fabric formed by the method of the present invention has a strong and lasting velvety effect. The velvet produced by the peach skin processing method of the present invention is shorter, and the short velvet has greater rigidity than the long velvet, so the short velvet is easier to restore to a straight state after lodging. In addition, the use of a polyurethane enhancer after sanding can form a film on the surface of the fabric, which helps to keep the velvet upright, making the velvet feel of the peach skin fabric delicate and lasting.

[0025] (4) The fabric has natural elasticity and good resilience, which increases wearing comfort. With the processing method of the present invention, after the fabric is fully expanded and retracted through the loose pile mercerizing, it has natural elasticity in both the warp and weft directions. When worn, it can stretch with the movement of body parts, which reduces the restraint of the fabric on the body and increases wearing comfort.

[0026] (5) The fabric has good anti-pilling performance. The peach skin fabric processed by the method of the present invention has short fuzz, which is not easy to be entangled with each other to form pills under the action of external force. It has good anti-pilling performance and is easy to care for. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the appearance characteristics of the finished fabric of Example 1.

[0028] Figure 2 This is a schematic diagram of the appearance characteristics of the finished fabric of Comparative Example 1. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with embodiments, but the present invention is not limited to the following examples.

[0030] The raw materials used in the examples and comparative examples are conventional commercially available raw materials unless otherwise specified, and the process methods used in the examples and comparative examples are conventional methods in the art unless otherwise specified.

[0031] Some of the raw materials used in the examples and comparative examples are described as follows:

[0032] Polyurethane enhancer Qingdao Xianda Fine Chemical Co., Ltd.;

[0033] Silicone softener Zibo Lurui Fine Chemical Co., Ltd.;

[0034] Fatty acid softener Zibo Lurui Fine Chemical Co., Ltd.

[0035] Example 1

[0036] Fabric specification design: warp direction uses pure cotton compact ring-spun plied yarn with a yarn count of 70 Ne, weft direction uses pure cotton compact ring-spun single yarn with a yarn count of 70 Ne. The fabric structure is plain weave, the warp density of the finished product is 670 strands / 10cm, the weft density is 355 strands / 10cm, the warp shrinkage of the fabric is designed to be 13%, and the weft shrinkage is designed to be 9.53%.

[0037] Flower design: light red in warp direction, white in weft direction.

[0038] Yarn dyeing: The warp and weft yarns are dyed in the form of bobbin dyeing, and the conventional cotton fiber bleaching and dyeing process is used. The warp yarn is dyed light red, and the weft yarn is dyed white. The cotton yarn is pre-treated before dyeing. The temperature of the warp and weft yarns is 60℃, and the heat preservation time is 40 minutes. After that, the color fixing and softening treatment are carried out, and finally hot air drying is carried out.

[0039] Fabric weaving: The dyed warp yarn is warped, sizing, hansled, reeded and hung, and woven according to the fabric specification design parameters to obtain pure cotton color-woven grey fabric.

[0040] Singeing: adopt one forward and one reverse singeing method, the speed is 90m / min, and the flame intensity is 10mbar.

[0041] Desizing: Use amylase for desizing, the water washing temperature is 100℃, and then it is dried in a drying barrel at a speed of 60m / min.

[0042] Loose pile mercerizing: Use a padding mill to roll caustic soda solution, the concentration of the caustic soda solution is 8 degrees Baume, the temperature is 25℃, and the rolling rate of the padding mill after alkali dipping is 50%. After rolling, the coils are piled for 0.5 hours.

[0043] Loose pile washing: Use a loose-pile washing machine for washing, use a relaxation tension of 60N, first wash with 40℃ water for 5 minutes, then add 1g / L of neutralizing acid to 40℃ water, wash for 2 minutes, so that the moisture content of the fabric is 40%.

[0044] Sanding: Use high-mesh diamond sand for sanding. The speed of the sanding machine is 18m / min, the mesh number of the sandpaper is 600 mesh, the front and back of the fabric are sanded once each, and the tension of the sanding machine is 100N.

[0045] Stretching: the speed is 80m / min, the overfeed rate is 2%, the drying room temperature is 110℃, the dosage of polyurethane reinforcing agent is 10g / L, and the dosage of silicone softener is 10g / L.

[0046] Pre-shrinkage: The machine speed is 30m / min. The cloth is steam-shaped after entering. After steam pre-shrinkage, it is cold-air dried and then cooled to fall. The steam pressure is 2.5bar and the steam temperature is 120℃.

[0047] Example 2

[0048] Fabric specification design: ordinary ring-spun pure cotton yarn 40 Nes is used in the warp direction, and ring-spun pure cotton yarn 10 Nes single yarn is used in the weft direction. The yarn organization is 2 / 2 weight flat, the warp density of the finished product is 394 strands / 10cm, the weft density is 177 strands / 10cm, the warp shrinkage of the fabric is designed to be 9.5%, and the weft shrinkage is designed to be 17.13%.

[0049] Pattern design: Lattice pattern, 10 white yarns and 10 navy blue yarns are arranged alternately in the warp direction, and 10 white yarns and 10 navy blue yarns are arranged alternately in the weft direction.

[0050] Yarn dyeing: The warp and weft yarns are dyed in the form of bobbin dyeing, and the conventional cotton fiber bleaching and dyeing process is used. The cotton yarn is dyed after pre-treatment. The dyeing temperature of the white yarn in the warp and weft yarns is 60℃, and the heat preservation time is 40min. The dyeing temperature of the navy blue yarn in the warp and weft yarns is 80℃, and the heat preservation time is 50min. After dyeing, the color is fixed and softened, and finally hot air drying is carried out.

[0051] Fabric weaving: The dyed warp yarn is warped, sizing, hansled, reeded and hung, and woven according to the fabric specification design parameters to obtain pure cotton color-woven grey fabric.

[0052] Singeing: adopt one forward and one reverse singeing method, the speed is 60m / min, and the flame intensity is 12mbar.

[0053] Desizing: Use amylase for desizing, the water washing temperature is 80℃, and after water washing, it is dried in a drying barrel at a speed of 90m / min.

[0054] Loose pile mercerizing: Use a padding mill to roll with alkali, the alkali concentration is 15 degrees Baume, the alkali solution temperature is 25℃, and the rolling rate of the padding car after alkali rolling is 80%. After rolling with alkali, roll and pile for 1 hour.

[0055] Loose pile washing: Use a loose-pile washing machine for washing, use a relaxation tension of 70N, first use 60℃ water to wash for 10 minutes, then add 2g / L of neutralizing acid to 60℃ water, wash for 3 minutes, so that the moisture content of the fabric is 50%.

[0056] Sanding: Use high-mesh diamond sand for sanding. The speed of the sanding machine is 12m / min, the mesh number of the sandpaper is 600 mesh, the front and back of the fabric are sanded once each, and the tension of the sanding machine is 300N.

[0057] Stretching: the speed is 60m / min, the overfeed rate is 4%, the drying room temperature is 140℃, the dosage of polyurethane reinforcing agent is 30g / L, and the dosage of silicone softener is 30g / L.

[0058] Pre-shrinkage: The machine speed is 25m / min. The cloth is steam-shaped after entering. After steam pre-shrinkage, it is cold-air dried and then cooled to fall. The steam pressure is 2.0bar and the steam temperature is 110℃.

[0059] Example 3

[0060] Fabric specification design: warp direction uses compact siro-spun pure cotton yarn 50 Ne ply yarn, weft direction uses compact siro-spun pure cotton 50 Ne ply yarn. The yarn structure is 3 / 1 twill, the warp density of the finished product is 315 strands / 10cm, the weft density is 275 strands / 10cm, the warp shrinkage of the fabric is designed to be 10.5%, and the weft shrinkage is designed to be 19.56%.

[0061] Flower design: light yellow in warp direction, dark blue in weft direction.

[0062] Yarn dyeing: The warp and weft yarns are dyed in the form of bobbin dyeing, and the conventional cotton fiber bleaching and dyeing process is used. The cotton yarn is dyed after pre-treatment. The light yellow warp yarn is dyed at 60℃ and the heat preservation time is 40min. The dark blue weft yarn is dyed at 80℃ and the heat preservation time is 50min. After dyeing, the color is fixed and softened, and finally hot air drying is performed.

[0063] Fabric weaving: The dyed warp yarn is warped, sizing, hansled, reeded and hung, and woven according to the fabric specification design parameters to obtain pure cotton color-woven grey fabric.

[0064] Singeing: adopt one forward and one reverse singeing method, the speed is 60m / min, and the flame intensity is 13mbar.

[0065] Desizing: Use amylase for desizing, the water washing temperature is 90℃, and after water washing, it is dried in a drying barrel at a speed of 90m / min.

[0066] Loose pile mercerizing: Use a padding mill to roll caustic soda solution, the concentration of the caustic soda solution is 15 degrees Baume, the temperature is 28℃, and the rolling rate of the padding mill after alkali dipping is 70%. After rolling, roll and stack for 2 hours.

[0067] Loose pile washing: Use a loose-pile washing machine for washing, use a relaxation tension of 70N, first use 60℃ water to wash for 8 minutes, then add 2g / L of neutralizing acid to 60℃ water, wash for 3 minutes, so that the moisture content of the fabric is 60%.

[0068] Sanding: Use high-mesh diamond sand for sanding. The speed of the sanding machine is 10m / min, the mesh number of the sandpaper is 400 mesh, the front and back of the fabric are sanded once each, and the tension of the sanding machine is 400N.

[0069] Stretching: the speed is 50m / min, the overfeed rate is 3%, the drying room temperature is 110℃, the dosage of polyurethane reinforcing agent is 40g / L, and the dosage of fatty acid softener is 40g / L.

[0070] Pre-shrinkage: The machine speed is 35m / min. The cloth is steam-set after entering. After steam pre-shrinkage, it is cold-air dried and then cooled to fall. The steam pressure is 3.0bar and the steam temperature is 130℃.

[0071] Example 4

[0072] Fabric specification design: Siro-spun pure cotton yarn 50 Ne, Siro-spun pure cotton 40 Ne plied yarn is used in the warp direction. The yarn organization is 5-piece 3-fly warp satin, the warp density of the finished product is 866 strands / 10cm, the weft density is 472 strands / 10cm, the warp shrinkage of the fabric is designed to be 13.5%, and the weft shrinkage is designed to be 10.34%.

[0073] Pattern design: black in both warp and weft directions.

[0074] Yarn dyeing: The warp and weft yarns are dyed in the form of bobbin dyeing, and the conventional cotton fiber bleaching and dyeing process is used. The cotton yarn is dyed after pre-treatment. The dyeing temperature of the black warp and weft yarns is 90℃, and the heat preservation time is 60min. After dyeing, the color is fixed and softened, and finally hot air drying is performed.

[0075] Fabric weaving: The dyed warp yarn is warped, sizing, hansled, reeded and hung, and woven according to the fabric specification design parameters to obtain pure cotton color-woven grey fabric.

[0076] Singeing: adopt one forward and one reverse singeing method, the speed is 80m / min, and the flame intensity is 13mbar.

[0077] Desizing: Use amylase for desizing, the water washing temperature is 90℃, and after water washing, it is dried in a drying barrel at a speed of 80m / min.

[0078] Loose pile mercerizing: Use a padding mill to roll caustic soda solution, the concentration of the caustic soda solution is 12 degrees Baume, the temperature is 30℃, and the rolling rate of the padding mill after alkali dipping is 70%. After rolling, roll and stack for 1.5 hours.

[0079] Loose pile washing: Use a loose-pile washing machine for washing, use a relaxation tension of 60N, first use 50℃ water to wash for 8 minutes, then add 2g / L of neutralizing acid to 50℃ water, wash for 2 minutes, so that the moisture content of the fabric is 50%.

[0080] Sanding: Use high-mesh diamond sand for sanding. The speed of the sanding machine is 15m / min, the mesh number of the sandpaper is 700 mesh, the front and back of the fabric are sanded once each, and the tension of the sanding machine is 200N.

[0081] Stretching: the speed is 70m / min, the overfeed rate is 3%, the drying room temperature is 130℃, the dosage of polyurethane reinforcing agent is 30g / L, and the dosage of fatty acid softener is 20g / L.

[0082] Pre-shrinkage: The machine speed is 25m / min. The cloth is steam-shaped after entering. After steam pre-shrinkage, it is cold-air dried and then cooled to fall. The steam pressure is 3.0bar and the steam temperature is 120℃.

[0083] Example 5

[0084] Fabric specification design: 21-neg air-spun pure cotton yarn is used in the warp direction, and 21-neg ring-spun pure cotton yarn is used in the weft direction. The yarn organization is 2 / 2 jacquard, the warp density of the finished product is 291 strands / 10cm, the weft density is 252 strands / 10cm, the warp shrinkage of the fabric is designed to be 12%, and the weft shrinkage is designed to be 19.64%.

[0085] Pattern design: Stripe pattern, 6 light green yarns and 6 dark green yarns are arranged alternately in the warp direction, and light green is in the weft direction.

[0086] Yarn dyeing: The warp and weft yarns are dyed in the form of bobbin dyeing, and the conventional cotton fiber bleaching and dyeing process is used. The cotton yarn is dyed after pre-treatment. The dyeing temperature of the light green warp and weft yarns is 60℃, and the heat preservation time is 40min. The dyeing temperature of the dark green warp yarn is 80℃, and the heat preservation time is 50min. After dyeing, the color is fixed and softened, and finally hot air drying is carried out.

[0087] Fabric weaving: The dyed warp yarn is warped, sizing, hansled, reeded and hung, and woven according to the fabric specification design parameters to obtain pure cotton color-woven grey fabric.

[0088] Singeing: adopt one forward and one reverse singeing method, the speed is 60m / min, and the flame intensity is 15mbar.

[0089] Desizing: Use amylase for desizing, the water washing temperature is 80℃, and after water washing, it is dried in a drying barrel at a speed of 90m / min.

[0090] Loose pile mercerizing: Use a padding mill to roll caustic soda solution, the concentration of the caustic soda solution is 15 degrees Baume, the alkali solution temperature is 25℃, and the rolling rate of the padding mill after alkali dipping is 80%. After rolling, roll and stack for 2 hours.

[0091] Loose pile washing: Use a loose-pile washing machine for washing, use a relaxation tension of 70N, first use 60℃ water to wash for 10 minutes, then add 3g / L of neutralizing acid to 60℃ water, wash for 3 minutes, so that the moisture content of the fabric is 60%.

[0092] Sanding: Use high-mesh diamond sand for sanding. The speed of the sanding machine is 10m / min, the mesh number of the sandpaper is 400 mesh, the front and back of the fabric are sanded once each, and the tension of the sanding machine is 400N.

[0093] Stretching: the speed is 50m / min, the overfeed rate is 5%, the drying room temperature is 150℃, the dosage of polyurethane reinforcing agent is 40g / L, and the dosage of silicone softener is 40g / L.

[0094] Pre-shrinkage: The machine speed is 20m / min. The cloth is steam-shaped after entering. After steam pre-shrinkage, it is cold-air dried and then cooled to fall. The steam pressure is 3.5bar and the steam temperature is 128℃.

[0095] Comparative Example 1: The difference from Example 1 is that the fabric does not go through the loose pile mercerization process and the loose pile washing process after desizing, but uses a straight roller mercerization machine for conventional mercerization, the alkali concentration is 20 degrees Baume, the alkali solution temperature is 30°C, and after the alkali treatment, it is flat-width high-tension flat washing, and dried in a drying barrel. Pre-shrinkage is rubber strip pre-shrinkage. Others are the same as Example 1.

[0096] The fabrics prepared in Examples 1-5 and Comparative Example 1 were tested for performance, and the testing method was as follows:

[0097] Washing dimensional stability, tested according to the test standard ISO 6330;

[0098] Breaking strength is tested according to the test standard ISO 13934-2;

[0099] Tear strength is tested according to the test standard ISO 13937-1;

[0100] Elastic elongation, tested according to the test standard ASTM D3107-07;

[0101] Pilling resistance, tested according to the test standard ISO 12945-2;

[0102] The test results of the fabric properties prepared in Examples 1-5 and Comparative Example 1 are shown in Table 1.

[0103] Table 1 Test results of fabric properties prepared in Examples 1-5 and Comparative Example 1

[0104]

[0105] It can be seen from the data in Table 1 that the dimensional stability, breaking strength and tearing strength of the pure cotton peach skin fabric processed by the method introduced in the present invention can meet the wearing requirements. It has good anti-pilling effect, is not easy to pilling in daily wear, and is easy to take care of. It also has comfortable elasticity in both the warp and weft directions, which reduces the sense of restraint when wearing and makes the fabric have a sense of resilience. Figure 1 and Figure 2 From the comparison of the sanding effects, it can be seen that in Example 1, the surface of the fabric and the sanding roller are more closely and fully held during processing, and the warp and weft points of the fabric can be fully rubbed, thereby producing short and dense fluff; while in Comparative Example 1 processed by the conventional method, only the relatively protruding tissue points on the surface of the fabric form point contact with the sanding roller, and the position of the fabric rubbing with the sanding roller is limited. It can also be seen that the method introduced by the present invention will not produce long fluff like the conventional method.

Claims

1. A method for processing pure cotton peach skin yarn-dyed fabric, characterized in that: The following steps are involved: (1) Fabric specification design: Use pure cotton yarn and design fabric weaving parameters based on yarn count and fabric structure; (2) Yarn dyeing: dyeing the pure cotton yarn using the form of tube dyeing to obtain dyed warp yarn and weft yarn; (3) Weaving: warping and sizing the dyed warp yarn obtained in step (2), and weaving according to the weaving parameters designed in step (1) to obtain a pure cotton color-dyed grey fabric; (4) Finishing: singeing, desizing, loose pile mercerizing, loose pile washing, emery sanding, tentering and steam preshrinking are performed on the pure cotton color-dyed fabric obtained in step (3) to obtain a pure cotton peach skin color-dyed fabric; In the step (4), the loose pile mercerizing process uses a padding mill to roll a caustic soda solution, the concentration of the caustic soda solution is 8-15 degrees Baume, the alkali solution temperature is 25-30°C, the rolling rate of the padding mill after alkali dipping is 50%-80%, and the coils are piled for 0.5-2.0 hours after rolling; In step (4), the loose pile washing process is to use a loose type washing machine for washing, use a relaxation tension of 60-70N, first use 40-60℃ water for washing for 5-10min, then add 1-3g / L of neutralizing acid to the 40-60℃ water, wash for 2-3min, so that the moisture content of the fabric is 40%-60%; In the step (4), the tentering speed is 50-80 m / min, the overfeed rate is 2-5%, the drying room temperature is 110-150°C, the amount of polyurethane reinforcing agent is 10-40 g / L, and the amount of softener is 10-40 g / L; the softener is a silicone softener or a fatty acid softener.

2. The processing method of pure cotton peach skin yarn-dyed fabric according to claim 1, characterized in that: In the step (1), the pure cotton yarn is a single yarn or a ply yarn, and the yarn count is one or more of 10-70 Ne; the spinning method of the pure cotton yarn in the fabric is one of ordinary ring spinning, compact ring spinning, siro spinning, compact siro spinning, and air spinning; the fabric structure is one of plain weave, twill weave, satin weave, heavy weave or jacquard; the warp finishing shrinkage is 9%-14%, and the weft finishing shrinkage is 9%-20%.

3. The processing method of pure cotton peach skin yarn-dyed fabric according to claim 1, characterized in that: In the step (2), the pure cotton yarn is pre-treated and then dyed at a dyeing temperature of 60-90°C for a heat preservation time of 40-60 minutes, followed by color fixing, softening and drying.

4. The processing method of pure cotton peach skin yarn-dyed fabric according to claim 1, characterized in that: In the step (4), the singeing is performed by a forward and reverse singeing method, the vehicle speed is 60-90 m / min, and the flame intensity is 10-15 mbar; amylase is used for desizing, the water washing temperature is 80-100°C, and after water washing, it is dried in a drying barrel at a speed of 60-90 m / min.

5. The processing method of pure cotton peach skin yarn-dyed fabric according to claim 1, characterized in that: In the step (4), the sanding process is performed using a high-mesh diamond sanding machine, the sanding machine speed is 10-18 m / min, the sandpaper mesh is 400-800 mesh, the front and back sides of the fabric are sanded once each, and the sanding machine tension is 100-400N.

6. The processing method of pure cotton peach skin yarn-dyed fabric according to claim 1, characterized in that: In the step (4), the pre-shrinking speed is 20-40 m / min, the cloth is steam-shaped after entering, and after steam pre-shrinking, it is cold-air dried and then cooled to fall off, the steam pressure is 2.0-3.5 bar, and the steam temperature is 110-130°C.

7. A pure cotton peach skin yarn-dyed fabric, characterized in that: The invention is prepared by the processing method of the pure cotton peach skin yarn-dyed fabric according to any one of claims 1 to 6.

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