Dyeing process for silk and pashm blended yarn

Abstract

The invention provides a process for dyeing silk-cashmere blended yarns, belonging to the weaving yarn dyeing technical field. The process comprises the following steps that: silk-cashmere blended yarns ready to be dyed are put in a dye vat, water is added in the dye vat, and the bath ratio is controlled; at the normal temperature, auxiliary agent and dyes are added in the dye vat; the dye vat is kept warmth at the normal temperature; at the normal temperature, salt is added in the dye vat for the first time; the dye vat is kept warmth at the normal temperature again; alkali is added in the dye vat for the first time; the dye vat is kept warmth at the normal temperature again; the dye vat is heated, and the temperature-rise speed is controlled; the dye vat is kept warmth; alkali is added in the dye vat for the second time; the dye vat is kept warmth again; salt is added in the dye vat for the second time; the dye vat is kept warmth again; finally after sequent steps of temperature drop and liquid discharging, fresh water washing, soap washing, hot water washing, color fixation, upper flexibility, dewatering and drying, dyed silk-cashmere blended yarns are obtained. The process has the advantages of high color fastness, good level-dyeing property, good homochromaatism, high breaking strength, bright color, filled yarns, uneasy teasing, time conservation, low dye cost, simple processing step, energy consumption reduction, low sewage discharge and environment protection.

Description

technical field

[0001] The invention belongs to the technical field of textile yarn dyeing, in particular to a dyeing process of silk and cashmere blended yarn. Background technique

[0002] Silk and cashmere blended yarn is made of silk and cashmere. Its products not only retain the soft and high-grade essence of cashmere, but also overcome the shortcomings of cashmere such as easy shrinkage and felting. Clothing made of silk cashmere is famous for its high softness, strong warmth retention, good moisture absorption and air permeability, and luxurious texture. It is a new product that has become popular in the international fashion industry in recent years, especially in France, which represents the world fashion trend.

[0003] There are roughly two ingredients in silk cashmere: one is 45% cashmere and 55% silk; the other is 15% cashmere and 85% silk. At present, in order to achieve the same color of silk and cashmere, the dyeing method of silk and cashmere blended yarn m...

Examples

Embodiment 1

[0023] It is 60S / 2 (two-ply, 45% cashmere, 55% silk) with specification, and quantity is 100Kg, and dyeing color and luster is blue silk and cashmere blended package yarn as example.

[0024] Please refer to figure 2 with image 3 . Firstly, loosen the commercially available 60S / 2 silk cashmere blended package yarn. The loose tube referred to here refers to the dyeing tube that rewinds the silk cashmere blended yarn previously placed on the paper bobbin with a yarn rewinding device to enter the dyeing vat. On the tube, preferably but not limited to, the yarn weight of each dyed bobbin is 0.8Kg, and the winding density is 0.38g / cm 3 , and then put the dyeing bobbin on the sarong, and lock the top lock.

[0025] Put the dyed bobbin wrapped with silk and cashmere blended yarn in the sarong into a semi-filled dyeing vat such as that produced by Hong Kong Lixin Co., Ltd., and fill the dyeing vat with water. The liquor ratio is 1:8, that is, 1Kg of yarn is mixed with 8Kg water,...

Embodiment 2

[0027] It is 60S / 2 (two-ply, 45% cashmere, 55% silk) with specification, and quantity is 60Kg, and dyeing color and luster is dark green silk cashmere blended bobbin yarn as example.

[0028] Please refer to figure 2 with Figure 4 . Firstly, loosen the commercially available 60S / 2 silk cashmere blended package yarn. The loose tube referred to here refers to the dyeing tube that rewinds the silk cashmere blended yarn previously placed on the paper bobbin with a yarn rewinding device to enter the dyeing vat. On the tube, preferably but not limited to, the yarn weight of each dyed bobbin is 0.9Kg, and the winding density is 0.39g / cm 3 , and then put the dyeing bobbin on the sarong, and lock the top lock.

[0029] Put the dyeing bobbin wrapped with silk and cashmere blended yarn in the sarong into a half-filled dyeing vat such as that produced by Hong Kong Lixin Co., Ltd., and fill the dyeing vat with water. The liquor ratio is 1:9.5, that is, 1Kg of yarn is mixed with 9.5Kg ...

Embodiment 3

[0031] Be 60S / 2 (two-ply, 15% cashmere, 85% silk) with specification, quantity is 600Kg, dyeing color and luster is the silk cashmere blended cheese of dark gray as example.

[0032] Please refer to figure 2 with Figure 5 . Firstly, loosen the commercially available 60S / 2 silk cashmere blended package yarn. The loose tube referred to here refers to the dyeing tube that rewinds the silk cashmere blended yarn previously placed on the paper bobbin with a yarn rewinding device to enter the dyeing vat. On the tube, preferably but not limited to, the yarn weight of each dyed bobbin is 1.0Kg, and the winding density is 0.40g / cm 3 , and then put the dyeing bobbin on the sarong, and lock the top lock.

[0033] Put the dyeing bobbin wrapped with silk and cashmere blended yarn in the sarong into a half-filled dyeing vat such as that produced by Hong Kong Lixin Co., Ltd., and fill the dyeing vat with water. The liquor ratio is 1:7, that is, 1Kg of yarn is mixed with 7Kg of water. Th...

technical field

[0001] The invention belongs to the technical field of textile yarn dyeing, in particular to a dyeing process of silk and cashmere blended yarn. Background technique

[0002] Silk and cashmere blended yarn is made of silk and cashmere. Its products not only retain the soft and high-grade essence of cashmere, but also overcome the shortcomings of cashmere such as easy shrinkage and felting. Clothing made of silk cashmere is famous for its high softness, strong warmth retention, good moisture absorption and air permeability, and luxurious texture. It is a new product that has become popular in the international fashion industry in recent years, especially in France, which represents the world fashion trend.

[0003] There are roughly two ingredients in silk cashmere: one is 45% cashmere and 55% silk; the other is 15% cashmere and 85% silk. At present, in order to achieve the same color of silk and cashmere, the dyeing method of silk and cashmere blended yarn m...

Examples

Embodiment 1

[0023] It is 60S / 2 (two-ply, 45% cashmere, 55% silk) with specification, and quantity is 100Kg, and dyeing color and luster is blue silk and cashmere blended package yarn as example.

[0024] Please refer to figure 2 with image 3 . Firstly, loosen the commercially available 60S / 2 silk cashmere blended package yarn. The loose tube referred to here refers to the dyeing tube that rewinds the silk cashmere blended yarn previously placed on the paper bobbin with a yarn rewinding device to enter the dyeing vat. On the tube, preferably but not limited to, the yarn weight of each dyed bobbin is 0.8Kg, and the winding density is 0.38g / cm 3 , and then put the dyeing bobbin on the sarong, and lock the top lock.

[0025] Put the dyed bobbin wrapped with silk and cashmere blended yarn in the sarong into a semi-filled dyeing vat such as that produced by Hong Kong Lixin Co., Ltd., and fill the dyeing vat with water. The liquor ratio is 1:8, that is, 1Kg of yarn is mixed with 8Kg water,...

Embodiment 2

[0027] It is 60S / 2 (two-ply, 45% cashmere, 55% silk) with specification, and quantity is 60Kg, and dyeing color and luster is dark green silk cashmere blended bobbin yarn as example.

[0028] Please refer to figure 2 with Figure 4 . Firstly, loosen the commercially available 60S / 2 silk cashmere blended package yarn. The loose tube referred to here refers to the dyeing tube that rewinds the silk cashmere blended yarn previously placed on the paper bobbin with a yarn rewinding device to enter the dyeing vat. On the tube, preferably but not limited to, the yarn weight of each dyed bobbin is 0.9Kg, and the winding density is 0.39g / cm 3 , and then put the dyeing bobbin on the sarong, and lock the top lock.

[0029] Put the dyeing bobbin wrapped with silk and cashmere blended yarn in the sarong into a half-filled dyeing vat such as that produced by Hong Kong Lixin Co., Ltd., and fill the dyeing vat with water. The liquor ratio is 1:9.5, that is, 1Kg of yarn is mixed with 9.5Kg ...

Embodiment 3

[0031] Be 60S / 2 (two-ply, 15% cashmere, 85% silk) with specification, quantity is 600Kg, dyeing color and luster is the silk cashmere blended cheese of dark gray as example.

[0032] Please refer to figure 2 with Figure 5 . Firstly, loosen the commercially available 60S / 2 silk cashmere blended package yarn. The loose tube referred to here refers to the dyeing tube that rewinds the silk cashmere blended yarn previously placed on the paper bobbin with a yarn rewinding device to enter the dyeing vat. On the tube, preferably but not limited to, the yarn weight of each dyed bobbin is 1.0Kg, and the winding density is 0.40g / cm 3 , and then put the dyeing bobbin on the sarong, and lock the top lock.

[0033] Put the dyeing bobbin wrapped with silk and cashmere blended yarn in the sarong into a half-filled dyeing vat such as that produced by Hong Kong Lixin Co., Ltd., and fill the dyeing vat with water. The liquor ratio is 1:7, that is, 1Kg of yarn is mixed with 7Kg of water. Th...

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