A method for washing Tencel denim garments

Abstract

The invention discloses a washing method for Tencel denim garments. Firstly, the denim garments are refined by using Tencel denim special materials HS-3201 and HS-314, then treated by using HS-921 to preliminarily form a suede effect, and finally softened by using HS-721. The method solves the problems in the prior art that Tencel denim garments are prone to fiber slippage, edge rot, cracking, creases, damage to fiber quality, and difficulty in washing out a suede effect during the washing process of the garments.

Description

Technical field:

[0001] The invention relates to a method for washing ready-made clothes, in particular to a method for washing Tencel denim ready-made clothes. Background technology:

[0002] Tencel is a new type of fiber produced by solvent spinning from conifer pulp. It has the "comfort" of cotton, the "strength" of polyester, the "luxury beauty" of wool fabrics, and the "unique touch" and "soft drape" of silk. It is extremely tough whether dry or wet. In wet state, it is the first cellulose fiber with wet strength far superior to cotton. The raw materials are taken from nature, and the production process is environmentally friendly. It is an excellent green fiber.

[0003] Tencel has also received widespread attention for its soft and shiny appearance, soft and smooth feel, and green and environmentally friendly characteristics, attracting many denim manufacturers to apply it to the production of denim clothing.

[0004] However, due to its characteristics of high orientation, high expansion and weak fibril bonding, Tencel has the following three fatal disadvantages in the denim production process, especially in the denim post-finishing washing process: ① Tencel fiber is very smooth, and it is very easy to cause fiber slippage during the steps of electrostatic finishing, enzyme washing and hand finishing of denim, resulting in fabric edge rot and cracking; ② When Tencel fiber is wet, the cellulose in the amorphous or amorphous area can absorb water equivalent to several times its own weight and swell and elongate, resulting in a decrease in fiber elongation and a phenomenon of wet and hard fibers, which makes denim clothing very easy to produce creases during the post-finishing process, doubling the defective rate; ③ The suede effect of Tencel denim is difficult to form in the post-finishing of denim garments.

[0005] Patent CN 110241540 A discloses a method for opening Tencel fabrics, which uses soda ash as an opening agent to form a suede-style opening method. However, the following problems still exist: this method is only applicable to denim fabrics, but not to Tencel denim garment washing, and is prone to causing the fabric to slip and crack. Summary of the invention:

[0006] The invention aims to provide a washing method for Tencel denim garments. Firstly, the Tencel denim garments are refined by using HS-3201 and HS-314, which are special for Tencel denim garments. Subsequently, HS-921 is used for treatment to preliminarily form a suede effect. Finally, HS-721 is used for softening finishing. The method solves the problems of the prior art that Tencel denim garments are prone to fiber slippage, edge rot, cracking, creases, damage to fiber quality, and difficulty in washing out a suede effect during the washing process of the garments.

[0007] The present invention is achieved through the following technical solutions:

[0008] A method for washing Tencel denim garments, the method comprising the following steps:

[0009] 1) Scour the Tencel denim garment in a mixed solution of 2-8 g / L HS-3201 and 2-6 g / L HS-314 at 40-80°C for 15-40 min, and then wash with clean water;

[0010] 2) placing the Tencel denim garment after the scouring treatment in step 1) in a solution of 0.5-2 g / L of HS-921 and 0.5-3 g / L of enzyme powder, washing at room temperature for 10-40 min, and then washing with clean water to obtain the Tencel denim garment with hair and flower removed;

[0011] 3) putting the dehaired and flowered Tencel denim garment obtained in step 2) into a solution containing 4-8 g / L of Usin-HS-3201 and 2-4 g / L of sodium hypochlorite, rinsing at 30-60° C. for 5-20 min, and then bleaching with hydrogen peroxide;

[0012] or

[0013] The depilated and flowered Tencel denim garment obtained in step 2) is placed in 2-8 g / L of Usin-HS-3201 and 4-6 g / L of hydrogen peroxide, rinsed at 40-80° C. for 10-40 min, and then washed with clean water;

[0014] 4) The Tencel denim garment treated in step 3) is placed in a solution of HS-721 with a concentration of 2 to 6 g / L, rinsed at room temperature for 5 to 10 minutes, and then dried.

[0015] Preferably, step 1) is to scour the Tencel denim garment in a mixed solution of 3-5 g / L HS-3201 and 3-5 g / L HS-314 at 40-80° C. for 15-40 min, and then wash with clean water.

[0016] When the Tencel denim garment is indigo-dyed blue denim, step 3) is: put the Tencel denim garment obtained in step 2) and the depilated and flowered Tencel denim garment into 4-8 g / L Yousisu-HS-3201 and 2-4 g / L sodium hypochlorite solution, rinse at 30-60° C. for 5-20 min, and then bleach with hydrogen peroxide.

[0017] When the Tencel denim garment is sulfur black dyed black denim, step 3 is: put the dehaired and flowered Tencel denim garment obtained in step 2) into 2-8 g / L of HS-3201 and 4-6 g / L of hydrogen peroxide, rinse at 40-80° C. for 10-40 min, and then wash with clean water.

[0018] By weight, the ULS-HS-3201 comprises: 40-50 parts of a multifunctional alkali-releasing agent, 5-10 parts of a surfactant, 5-10 parts of sorbitol, 2-5 parts of a chelating dispersant, and 2-5 parts of alumina. The multifunctional alkali-releasing agent comprises the following components based on a total mass percentage of 100%: 1-3% of sodium hydroxide, 1-3% of potassium hydroxide, 3%-45% of calcium hydroxide, 5%-20% of sodium carbonate, 5%-20% of calcium carbonate, 5%-10% of activated white mud, and 5%-10% of diatomaceous earth; the chelating dispersant is a maleic anhydride-acrylic methyl acid copolymer, in which the maleic anhydride structural unit accounts for 50-80%, the acrylic acid structural unit accounts for 20%-50%, and the weight-average molecular weight is 400-600.

[0019] In parts by weight, the U-Silk HS-314 component comprises: 10-40 parts of an amide-based polymer blend, 10-20 parts of sodium chloride, and 50-60 parts of deionized water; the amide-based polymer blend is a mixture of two or three of polyacrylamide (molecular weight of 10 million), quaternary ammonium stearate dimethyl sulfate, and imidazoline-type cationic softener;

[0020] By weight, the superior silk HS-921 comprises: 10 to 30 parts of neutral cellulase, 10 to 20 parts of sodium chloride, 5 to 10 parts of sorbitol, and 50 to 60 parts of deionized water.

[0021] By weight, the superior silk HS-721 comprises: 10 to 30 parts of a fabric softener compound, 5 to 10 parts of a surfactant, and 30 to 60 parts of deionized water; wherein the fabric softener compound is a mixture of two or three of stearic acid diethylenetriamine diester quaternary ammonium salt, stearic acid triethanolamine diester quaternary ammonium salt, imidazoline type cationic softener, oleic acid triethanolamine diester quaternary ammonium salt, and polyacrylamide (weight average molecular weight of 10 million).

[0022] The surfactant is one or a mixture of tridecane fatty alcohol polyoxyethylene polyoxypropylene ether and fatty acid polyoxyethylene ether.

[0023] The present invention firstly adopts HS-3201 and HS-314 to refine the garment, and solves the problems such as creases caused by the wet and hard Tencel with lower fabric damage than caustic soda, and at the same time lays a good foundation for the subsequent formation of suede effect. Subsequently, HS-921 is used to treat the Tencel denim to preliminarily form the suede effect, and HS-721 is used for finishing to solve the problem of easy slippage of Tencel.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1) After being treated by the present invention, the Tencel denim garment is soft and skin-friendly, has good moisture absorption and air permeability, and has an obvious suede effect, which effectively improves the added value and wearing comfort of the Tencel denim;

[0026] 2) Using the washing aids and improved washing process developed by us, the denim garments will not have creases, scratches or other defective products after treatment;

[0027] 3) By using the washing aids and improved washing process developed by us, the denim garments will not have rotten edges or cracks after treatment. Description of the drawings:

[0028] Figure 1-Figure 5 The schematic diagrams show the effects of the products obtained from Example 1, Example 4, Comparative Example 1, Comparative Example 4 and Comparative Example 12 respectively. Specific implementation method:

[0029] The following is a further description of the present invention, rather than a limitation of the present invention.

[0030] In the following examples, the described Usilk HS-3201 contains: 40 parts of multifunctional alkali-releasing agent, 5 parts of tridecyl fatty alcohol polyoxyethylene polyoxypropylene ether, 10 parts of sorbitol, 5 parts of chelating dispersant, and 5 parts of sodium sulfate, wherein the multifunctional alkali-releasing agent, calculated by the total mass percentage of 100%, includes the following components: 3% sodium hydroxide, 3% potassium hydroxide, 44% calcium hydroxide, 20% sodium carbonate, 10% calcium carbonate, 10% activated white mud, and 10% diatomaceous earth; wherein the chelating dispersant is a maleic anhydride propylene methyl acid copolymer, wherein the maleic anhydride structural unit accounts for 50% to 80%, the acrylic acid structural unit accounts for 20% to 50%, and the weight average molecular weight is about 500. )

[0031] In parts by weight, the U-Silk HS-314 component comprises: 10 parts of amide polymer blend, 10 parts of sodium chloride, and 60 parts of deionized water; the amide polymer copolymer is: a mixture of two or three of one part by weight of polyacrylamide (molecular weight 10 million), two parts by weight of stearic acid dimethyl sulfate quaternary ammonium salt, and two parts by weight of imidazoline type cationic softener;

[0032] By weight, the Ulticin HS-921 contains: 30 parts of neutral cellulase, 20 parts of sodium chloride, 10 parts of sorbitol, and 50 parts of deionized water.

[0033] In parts by weight, the ULS-HS-721 comprises: 10 parts of a fabric softener compound, 5 parts of tridecyl fatty alcohol polyoxyethylene polyoxypropylene ether, and 60 parts of deionized water; wherein the fabric softener compound consists of one part by weight of stearic acid diethylenetriamine diester quaternary ammonium salt, one part by weight of stearic acid triethanolamine diester quaternary ammonium salt, and two parts by weight of an imidazoline type cationic softener.

[0034] Embodiment 1:

[0035] A method for washing Tencel ready-made jeans, using 100% Tencel twill blue jeans, the washing process is as follows:

[0036] ① Use a 100-pound washing machine to scour the fabric: scour the ready-made denim in a mixed solution consisting of 4g / L of HS-3201 solution and 2g / L of HS-314 solution at 50°C for 20 minutes, and then wash with clean water.

[0037] ② Use a 100-pound washing machine to remove the hair and flowers from the fabric: 0.5g / L of Yousisu-HS-921 solution and 1g / L of enzyme powder, wash at room temperature for 20 minutes, and then wash with clean water.

[0038] ③ Use a 100-pound washing machine to rinse the fabric: 4g / L of Yousisu-HS-3201, 2g / L of sodium hypochlorite solution, rinse at 40℃ for 8min, and then bleach with hydrogen peroxide.

[0039] ④ Use a 100-pound washing machine to soften the fabric: 2g / L of HS-721 solution, rinse at room temperature for 5 minutes, and then dry.

[0040] See also Figure 1 , it feels soft, has obvious suede effect, and has no creases or rotten edges.

[0041] Example 2: Refer to Example 1, except that the concentration of the HS-3201 solution in step ① is 2 g / L.

[0042] Example 3: Refer to Example 1, except that the concentration of the HS-3201 solution in step ① is 6 g / L.

[0043] Embodiment 4:

[0044] A method for washing Tencel ready-made jeans, using 100% Tencel twill black jeans, the washing process is as follows:

[0045] ① Use a 100-pound washing machine to scour the fabric: 4g / L of HS-3201 solution and 2g / L of HS-314 solution, scour the ready-made denim in a 50°C solution for 20 minutes, and then wash with clean water.

[0046] ② Use a 100-pound washing machine to remove the hair and flowers from the fabric: 0.5g / L of Yousisu-HS-921 solution and 1g / L of enzyme powder, wash at room temperature for 20 minutes, and then wash with clean water.

[0047] ③ Use a 100-pound washing machine to rinse the fabric: 2g / L of Yousisu-HS-3201 solution, 4g / L of hydrogen peroxide, rinse at 50℃ for 20min, and then wash with clean water.

[0048] ④ Use a 100-pound washing machine to soften the fabric: 2g / L of Yusisu-HS-721 solution:, room temperature × 5min, then dry. Figure 2 , it feels soft, has obvious suede effect, and has no creases or rotten edges.

[0049] Comparative Example 1:

[0050] Refer to Example 1, except that 4 g / L caustic soda is used instead of HS-3201 in the refining step.

[0051] See also Figure 3 It feels soft and has a distinct suede effect, but has rotten edges and the fabric is gray and reddish in color.

[0052] Comparative Example 2:

[0053] Refer to Example 4, except that 4 g / L sodium hydroxide is used instead of HS-3201 in the refining step.

[0054] Comparative Example 3:

[0055] Refer to Example 1, except that 4 g / L sodium carbonate is used in the refining step instead of Usilk-HS-3201

[0056] Comparative Example 4:

[0057] Refer to Example 4, except that 4 g / L sodium carbonate is used instead of HS-3201 in the refining step.

[0058] Comparative Example 5:

[0059] Refer to Example 1, except that the HS-3201 is not used in the refining step.

[0060] Comparative Example 6:

[0061] Refer to Example 4, except that the refining step does not use Urosan HS-3201.

[0062] Comparative Example 7:

[0063] Refer to Example 1, except that the commercially available fiber opening agent YZ-101 (Shanghai Shenzhi Chemical Technology Co., Ltd.) is used in the refining step instead of HS-3201.

[0064] Comparative Example 8:

[0065] Refer to Example 4, except that the commercially available fiber opening agent YZ-101 (Shanghai Shenzhi Chemical Technology Co., Ltd.) is used in the refining step instead of HS-3201.

[0066] Comparative Example 9:

[0067] Refer to Example 1, except that the HS-314 is not used in the refining step.

[0068] Comparative Example 10:

[0069] Refer to Example 4, except that the HS-314 is not used in the refining step.

[0070] Comparative Example 11:

[0071] Refer to Example 1, except that in the softening step, a commercially available softening finishing agent TYW-126 super soft finishing agent (main component: amino-modified silicone emulsion, produced by Dongguan Taiyang New Material Technology Co., Ltd.) is used instead of Yousisu-HS-721.

[0072] Comparative Example 12:

[0073] Refer to Example 4, the difference is that in the softening finishing step, the commercially available softening finishing agent TYW-126 super soft finishing agent (the main component is amino-modified silicone emulsion, produced by Dongguan Taiyang New Material Technology Co., Ltd.) is used instead of Yousisu-HS-721.

[0074] Comparative Example 13:

[0075] The traditional denim washing process is used to wash 100% Tencel twill blue jeans. The washing process is as follows:

[0076] ① Use a 100-pound washing machine to desize the fabric: 2g / L soap oil A207 solution, 50℃×10min; then wash with clean water.

[0077] ② Use a 100-pound washing machine to perform enzyme washing on the fabric: 0.5g / L enzyme water 5516 solution, soap oil A207, wash at room temperature for 20 minutes, and then wash with clean water.

[0078] ③ Use a 100-pound washing machine to rinse the fabric: 2g / L sodium carbonate solution, 2g / L sodium hypochlorite solution, 40℃×8min, then bleach with hydrogen peroxide.

[0079] ④ Use a 100-pound washing machine to soften the fabric: 2g / L TYW-126 super-softening finishing agent solution, dry at room temperature for 5 minutes.

[0080] Comparative Example 14:

[0081] The traditional denim washing process is used to wash 100% Tencel twill black jeans. The washing process is as follows:

[0082] ① Use a 100-pound washing machine to desize the fabric: 2g / L soap oil A207 solution, 50℃×10min; then wash with clean water.

[0083] ② Use a 100-pound washing machine to perform enzyme washing on the fabric: 0.5g / L enzyme water 5516 solution, 2g / L soap oil A207, wash at room temperature for 20 minutes, and then wash with clean water.

[0084] ③ Use a 100-pound washing machine to rinse the fabric: 2g / L sodium carbonate solution, 4g / L hydrogen peroxide, 50℃×20min, then wash with clean water.

[0085] ④ Use a 100-pound washing machine to soften the fabric: 2g / L TYW-126 super-softening finishing agent solution, dry at room temperature for 5 minutes.

[0086] The wearing performance of the products of Examples 1-4 and Comparative Examples 1-14 before and after washing was evaluated.

[0087] 1. Comparison of fabric thickness after washing

[0088] Fabric thickness test is based on GB / T 3820-1997 "Determination of thickness of textiles and textile products", using YG141D fabric thickness tester. Each sample is tested at least ten times at different locations, and the results are averaged. The results are shown in Table 1.

[0089] Table 1. Comparison of fabric thickness after washing

[0090]

[0091]

[0092] Unit: mm

[0093] From Examples 1, 2, and 3 in Table 1, we can see that the thickness of the fabric decreases slightly with the increase in the amount of HS-3201 added in the refining step, but the decrease is not obvious. However, by comparing Example 1 with Comparative Examples 1, 3, and 7, and Example 4 with Comparative Examples 2, 4, and 8, it can be seen that the degree of damage to the thickness of the fabric by HS-3201 is significantly less than that by sodium hydroxide, sodium carbonate, and the commercially available fiber opening agent L. By comparing Example 1 with Comparative Example 13, and Example 4 with Comparative Example 14, it can be clearly seen that compared with the traditional process, our loss of fabric thickness is less, proving that the products and supporting processes developed by us are superior, can reduce fabric loss, and reduce the defect rate in the washing process.

[0094] 2. Comparison of fabric weight after washing

[0095] Use 100cm 2 The standard disc sampler cuts 5 longitudinal and 5 transverse specimens in parallel on the sample within 50 mm from the edge of the fabric using a template of specified size and weighs them. The average value is the weight measurement value. The results are shown in Table 2.

[0096] Table 2. Comparison of fabric weight after washing

[0097]

[0098]

[0099] Unit: g / 100cm 2

[0100] From Examples 1, 2, and 3 in Table 2, we can see that the weight of the fabric decreases slightly with the increase in the amount of HS-3201 added in the refining step, but the decrease is not obvious. However, by comparing Example 1 with Comparative Examples 1, 3, and 7, and Example 4 with Comparative Examples 2, 4, and 8, it can be seen that the degree of damage to the weight of the fabric by HS-3201 is significantly less than that by sodium hydroxide, sodium carbonate, and the commercially available fiber opening agent L. By comparing Example 1 with Comparative Example 13, and Example 4 with Comparative Example 14, it can be clearly seen that compared with the traditional process, our weight loss of the fabric is less, proving that the products and supporting processes developed by us are superior, can reduce fabric loss, and reduce the defect rate in the washing process.

[0101] 3. Comparison of fabric air permeability after washing

[0102] The fabric air permeability was determined in accordance with GB / T 5453-1997 "Determination of air permeability of textile fabrics". The YG461E computerized fabric air permeability tester was used, and the pressure difference was set to 100Pa. After testing the calibration parameters, the No. 6 nozzle was selected for the experiment. After one test was completed, the sample locking handle was opened and the sample was changed for another test. Each sample was tested 10 times at different locations, and the results were averaged. See Table 3.

[0103] Table 3. Comparison of fabric air permeability during washing

[0104] experiment Average air permeability (mm / s) experiment Average air permeability (mm / s) Example 1 866.145 Comparative Example 6 745.514 Example 2 845.718 Comparative Example 7 841.213 Example 3 879.651 Comparative Example 8 773.145 Example 4 789.211 Comparative Example 9 856.123 Comparative Example 1 905.121 Comparative Example 10 797.231 Comparative Example 2 854.236 Comparative Example 11 861.231 Comparative Example 3 899.125 Comparative Example 12 806.254 Comparative Example 4 821.362 Comparative Example 13 876.022 Comparative Example 5 821.712 Comparative Example 14 800.144

[0105] From Examples 1, 2, and 3 in Table 3, we can see that the air permeability of the fabric increases slightly with the increase in the amount of HS-3201 added in the refining step. By comparing Example 1 with Comparative Examples 1, 3, and 7, and Example 4 with Comparative Examples 2, 4, and 8, it can be seen that the air permeability of the fabric treated with HS-320 is slightly lower than that of sodium hydroxide, sodium carbonate, and the commercially available fiber opening agent L, which may be due to the small effect on the thickness of the fabric. By comparing Example 1 with Comparative Example 13, and Example 4 with Comparative Example 14, it can be clearly seen that the air permeability of the fabric obtained by the present application is not much different from that of the fabric obtained by the traditional process.

[0106] 4. Comparison of tearing strength of fabrics after washing

[0107] Fabric tearing strength comparison is carried out according to GB / T3917.1-2009 "Tear properties of textile fabrics Part 1: Determination of tearing strength by impact pendulum method", and the test is carried out using YG(B)003A fabric tearing instrument. Ten longitudinal and transverse specimens are cut in parallel on the sample 100mm away from the edge of the fabric using a sample of specified size, and the fan-shaped pendulum is raised to a vertical position, i.e. the starting position of the test, and the pointer is pushed to the baffle. The bottom edge of the semicircular specimen is placed at the bottom position in the middle of the two clamps, and then the two clamps are tightened, and the cutter handle is pressed to make a 20mm long incision from the bottom to the top in the middle of the specimen. Check the data, measure 10 times, and take the average result. See Table 4.

[0108] Table 4. Comparison of tearing strength of fabrics after washing

[0109] experiment Tear strength(N) experiment Tear strength(N) Example 1 47.6 Comparative Example 6 38.0 Example 2 48.0 Comparative Example 7 46.4 Example 3 47.1 Comparative Example 8 36.1 Example 4 37.4 Comparative Example 9 47.5 Comparative Example 1 45.4 Comparative Example 10 37.3 Comparative Example 2 35.1 Comparative Example 11 45.1 Comparative Example 3 47.1 Comparative Example 12 34.9 Comparative Example 4 47.2 Comparative Example 13 45.1 Comparative Example 5 48.7 Comparative Example 14 34.9

[0110] From Examples 1, 2, and 3 in Table 4, we can see that the tear strength of the fabric decreases slightly with the increase in the amount of HS-3201 added in the refining step. By comparing Example 1 with Comparative Examples 1, 3, and 7, and Example 4 with Comparative Examples 2, 4, and 8, it can be seen that the tear strength of the fabric treated with HS-3201 is less than that of sodium hydroxide, sodium carbonate, and the commercially available fiber opening agent L. By comparing Example 1 with Comparative Example 13, and Example 4 with Comparative Example 14, it can be clearly seen that compared with the traditional process, our tear force damage to the fabric is smaller, which further proves that the products and supporting processes developed by us are superior, can reduce the loss of Tencel fabrics, and reduce the defective rate in the washing process.

[0111] 5. Comparison of fabric feel after washing:

[0112] The characteristics of Tencel denim are analyzed from four aspects: softness, smoothness, suede effect, and gloss. These four aspects are divided into 1 to 5 levels, 1 (poor), 2 (good), 3 (average), 4 (good), and 5 (best). Ten experienced hand feel masters were selected to evaluate the trouser legs obtained in the experiment, and the results were averaged. See Table 5-Table 8.

[0113] Table 5. Comparison of fabric softness after washing

[0114] experiment 1 2 3 4 5 6 7 8 9 10 average value Example 1 4 4 4 4 5 5 5 5 5 4 4.5 Example 2 4 4 4 4 4 4 5 5 4 5 4.3 Example 3 5 5 5 5 4 4 4 5 5 4 4.6 Example 4 4 4 4 5 5 5 4 5 4 5 4.5 Comparative Example 1 5 5 5 5 4 4 4 4 5 5 4.6 Comparative Example 2 5 4 5 4 5 4 4 5 5 4 4.5 Comparative Example 3 4 4 4 5 5 5 4 5 4 5 4.5 Comparative Example 4 4 5 5 4 4 4 4 5 4 4 4.3 Comparative Example 5 3 3 2 3 3 3 2 3 2 3 2.7 Comparative Example 6 3 3 3 2 2 2 3 2 2 2 2.4 Comparative Example 7 4 4 3 4 4 3 4 4 3 4 3.7 Comparative Example 8 3 3 4 4 3 4 4 3 3 4 3.5 Comparative Example 9 3 4 4 3 4 4 4 3 4 4 3.7 Comparative Example 10 4 3 4 3 4 3 3 4 3 4 3.5 Comparative Example 11 4 4 5 5 4 5 4 5 4 5 4.5 Comparative Example 12 4 5 5 5 4 5 5 4 4 5 4.6 Comparative Example 13 3 3 4 4 4 3 4 4 4 4 3.7 Comparative Example 14 4 4 3 4 3 4 3 4 4 3 3.6

[0115] Table 6. Comparison of fabric smoothness after washing

[0116]

[0117]

[0118] Table 7. Comparison of suede effects of fabrics after washing

[0119]

[0120]

[0121] Table 8. Description of fabric exterior light status

[0122]

[0123]

[0124] Combining the data in Tables 5 to 8 Figure 1-Figure 5After analysis, we can see from Examples 1, 2, and 3 that the use of excellent silk-HS-3201 in the refining step can make the fabric produce a good suede effect of Tencel. With the increase of the content of excellent silk-HS-3201, the suede effect will be more obvious, but there will be a risk of rotten edges. 4g / L of excellent silk-HS-3201 is more suitable. Comparing Example 1 with Comparative Examples 1, 3, and 7, and Example 4 with Comparative Examples 2, 4, and 8, it can be seen that the damage of excellent silk-HS-3201 to the fabric is much less than that of sodium hydroxide, sodium carbonate, and commercially available fiber opening agent L, and will not cause rotten edges, slippage, etc. At the same time, it can produce a good suede effect, reflecting the characteristics of Tencel. Comparing Example 1 with Comparative Example 9, Example 4 with Comparative Example 10, it can be seen that not adding excellent silk has no effect on the suede effect, softness, and smoothness, but it will easily produce creases in the process, increasing the defective rate. By comparing Example 1 with Comparative Example 9, and Example 4 with Comparative Example 10, it can be seen that the commercially available soft finishing agent TYW-126 ultra-soft finishing agent has no effect on the suede effect, softness, and smoothness, but it is easy to cause slippage and edge rot in the process, increasing the defect rate, while the selected HS-721 will not have this situation. By comparing Example 1 with Comparative Example 13, and Example 4 with Comparative Example 14, it can be clearly seen that the traditional process cannot wash out the unique suede effect of Tencel, and at the same time causes great damage to Tencel.

Claims

1. A method for washing Tencel denim garments, characterized in that: The method comprises the following steps: 1) The Tencel denim garment is placed in a mixed solution of 2-8 g / L HS-3201 and 2-6 g / L HS-314 at 40-80° C. and scoured for 15-40 min, and then washed with clean water; by weight, the HS-3201 comprises: 40-50 parts of a multifunctional alkali-releasing agent, 5-10 parts of a surfactant, 5-10 parts of sorbitol, 2-5 parts of a chelating dispersant, and 2-5 parts of sodium sulfate, wherein the multifunctional alkali-releasing agent comprises the following components based on a total mass percentage of 100%: 1-3% sodium hydroxide, 1-3% potassium hydroxide, 3%-45% calcium hydroxide, and 5% sodium carbonate ~20%, calcium carbonate 5%~20%, activated white mud 5%~10%, diatomaceous earth 5%~10%; wherein the chelating dispersant is maleic anhydride acrylate copolymer, wherein the maleic anhydride structural unit accounts for 50%~80%, the structural unit of methyl acrylate accounts for 20%~50%, and the weight average molecular weight is 400-600; by weight, the Yusisu-HS-314 component comprises: 10~40 parts of amide-based polymer blend, 10~20 parts of sodium chloride, and 50~60 parts of deionized water; the amide-based polymer blend is composed of a mixture of polyacrylamide, stearic acid dimethyl sulfate quaternary ammonium salt, and imidazoline-type cationic softener; 2) placing the Tencel denim garment after the scouring treatment in step 1) in a solution of 0.5-2 g / L of HS-921 and 0.5-3 g / L of enzyme powder, washing at room temperature for 10-40 min, and then washing with clean water to obtain the Tencel denim garment with hair removal and flower removal; the HS-921 contains, by weight, 10-30 parts of neutral cellulase, 10-20 parts of sodium chloride, 5-10 parts of sorbitol, and 50-60 parts of deionized water; 3) The dehaired and flowered Tencel denim garment obtained in step 2) is placed in a solution of 4-8 g / L Yousisu-HS-3201 and 2-4 g / L sodium hypochlorite, rinsed at 30-60° C. for 5-20 min, and then bleached with hydrogen peroxide; or, The depilated Tencel denim garment obtained in step 2) is placed in 2-8 g / L HS-3201 and 4-6 g / L hydrogen peroxide, rinsed at 40-80° C. for 10-40 min, and then washed with clean water; 4) Putting the Tencel denim garment treated in step 3) into a solution of HS-721 with a concentration of 2-6 g / L, rinsing at room temperature for 5-10 minutes, and drying; by weight, the HS-721 comprises: 10-30 parts of a fabric softener compound, 5-10 parts of a surfactant, and 30-60 parts of deionized water; wherein the fabric softener compound is a mixture of two or three of stearic acid diethylenetriamine quaternary ammonium salt, stearic acid triethanolamine diester quaternary ammonium salt, imidazoline type cationic softener, oleic acid triethanolamine diester quaternary ammonium salt, and polyacrylamide.

2. The water washing method according to claim 1, characterized in that: The surfactant is one or two of tridecaned fatty alcohol polyoxyethylene polyoxypropylene ether and fatty acid polyoxyethylene ether.

3. The water washing method according to claim 1, characterized in that: Step 1) is to scour the Tencel denim garment in a mixed solution of 3-5 g / L HS-3201 and 3-5 g / L HS-314 at 40-80° C. for 15-40 minutes, and then wash with clean water.

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