Dyeing and finishing process of pearl cloth product

Abstract

The present application relates to the technical field of textile, and proposes a pearl cloth product dyeing and finishing process, which comprises the following steps: sequentially dyeing, squeezing water and post-finishing treatment of the pearl cloth fabric to obtain a pearl cloth product; the dyeing solution during dyeing is composed of the following components in mass percentage: 5-25% of reactive dyes, 5-11% of dyeing auxiliaries, 3-8% of pure alkali, and the balance is water; the dyeing auxiliaries are mixed by cocamide polyoxyethylene ether, polyhexamethylene guanidine and acetone. Through the above technical solution, the problem of low color fastness of the pearl cloth product after dyeing and finishing in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textiles, in particular to a pearl wool product dyeing and finishing process. BACKGROUND

[0002] The pearl wool product is a fabric whose main component is wool, and its style is fluffy, smooth and bright, thick and warm, and is named after its color similar to that of pearls. At present, wool fabric dyeing can use acid dyes, acid mordant dyes, metal complex dyes and reactive dyes, and reactive dyes are water-soluble dyes with reactive groups in their chemical structure. In the dyeing process, the dye reacts with the fiber to form a covalent bond. The current research on low-temperature dyeing of wool fibers has its limitations. Modification of fibers can easily cause damage to fiber strength, and the dyeing performance of fabrics is affected by the modification of fibers. New dyeing processes increase the cost of dyeing equipment and cost, and have not been industrialized. In order to improve the dye uptake, the dyeing temperature can only be increased, but long-term high-temperature dyeing can cause great damage to wool, resulting in rough hand feeling of the finished product and affecting the application performance in the textile field, especially in high-end wool cashmere products. Therefore, there are various problems in the current dyeing and finishing methods, and the most important thing is to solve the problems of poor level dyeing and low color fastness in the dyeing and finishing process, which will have a positive impact on the application of pearl wool products. SUMMARY

[0003] The present application provides a pearl wool product dyeing and finishing process, which solves the problem of low color fastness after dyeing and finishing of pearl wool products in the related art.

[0004] The technical scheme of the present application is as follows:

[0005] The present application provides a pearl wool product dyeing and finishing process, which includes the following steps: dyeing, squeezing water, and post-finishing treatment of pearl wool fabric to obtain a pearl wool product; the dyeing dyeing liquid is composed of the following components in mass percentage: reactive dyes 5%~25%, dyeing auxiliaries 5%~11%, soda ash 3%~8%, and the balance is water;

[0006] The dyeing auxiliaries are mixed by cocoamine polyoxyethylene ether, polyhexamethylene guanidine and acetone.

[0007] As a further technical scheme, the mass ratio of cocoamine polyoxyethylene ether, polyhexamethylene guanidine and acetone is 5:4:1~7:2:1.

[0008] As a further technical scheme, the post-finishing process includes drying, softening and steaming in sequence.

[0009] As a further technical scheme, the softener for softening is a mixture of amino silicone oil and 15% sodium cocoyl glutamate solution, and the concentration of the softener is 20g / L.

[0010] As a further technical solution, the mass ratio of the amino silicone oil to the sodium cocoyl glutamate solution is 3:1~2.

[0011] As a further technical solution, the amino silicone oil is two or three of primary amino silicone oil, secondary amino silicone oil and tertiary amino silicone oil.

[0012] As a further technical solution, the pearl fabric is composed of 96% wool and 4% cashmere by weight.

[0013] As a further technical solution, the reactive dye is one of the following: floral blue, mixed brown, light gray, bright gray-pink, and bright gray.

[0014] As a further technical solution, a sewing process was performed before dyeing, with a stitch length of 10-15mm and a machine speed of 10-20m / min.

[0015] As a further technical solution, the staining temperature is 60~80℃, the time is 25~35min, and the liquor ratio is 1:15~30.

[0016] As a further technical solution, the drying roll pressure is 8~10 kg / cm. 2 The temperature is 140~160℃, and the vehicle speed is 6~10m / min; the steaming vehicle speed is 10~15m / min, the steam pressure is 3~6bar, the steam volume is 50%~70%, and the temperature is 140~150℃.

[0017] The working principle and beneficial effects of this invention are as follows:

[0018] 1. In this invention, reactive dyes are used to dye and finish pearl fabric. During the dyeing process, cocoaluminamine polyoxyethylene ether, polyhexamethylene guanidine and acetone are used as dyeing auxiliaries to synergistically improve the activity of reactive dyes and increase the coloring ability of pearl fabric, which significantly improves the color fastness of the dyed pearl fabric. Combined with post-finishing treatment, the dyed pearl fabric also has the characteristic of being soft.

[0019] 2. In this invention, by using amino silicone oil and sodium cocoyl glutamate as composite softeners during the post-finishing softening process, the softness of the pearl fabric product is further improved, and the color fastness of the dyeing of the pearl fabric product is also further improved. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] In the following examples and comparative examples, the pearl fabric is composed of 96 wt% wool and 4 wt% cashmere.

[0022] Example 1

[0023] The dyeing solution consists of the following components by mass percentage: 5% reactive dye, 2% cocoamine polyoxyethylene ether, 2.5% polyhexamethylene guanidine, 0.5% acetone, 3% soda ash, and the balance being water.

[0024] The dyeing and finishing process for pearl-textured fabric products includes the following steps:

[0025] The pearl wool fabric is first sewn into tubes with 10mm stitches at a speed of 10m / min. Then, it is dyed for 25 minutes at 60℃ and a liquor ratio of 1:15. Afterward, the fabric is squeezed dry, and the roller pressure is set to 8kg / cm. 2 The dyed fabric is dried at a temperature of 140℃ and a speed of 6m / min. The dried fabric is then steamed at a speed of 10m / min, a steam pressure of 3bar, a steam volume of 50%, and a temperature of 140℃ to obtain the pearl fabric product.

[0026] Example 2

[0027] The dyeing solution consists of the following components by mass percentage: 15% reactive dye, 3.6% cocoamine polyoxyethylene ether, 4% polyhexamethylene guanidine, 0.8% acetone, 5% soda ash, and the balance being water.

[0028] The dyeing and finishing process for pearl-textured fabric products includes the following steps:

[0029] The pearl wool fabric is first sewn into tubes with 15mm stitches at a speed of 20m / min. Then, it is dyed for 30 minutes at 70℃ and a liquor ratio of 1:20. Afterward, the fabric is squeezed dry, and the roller pressure is set to 9kg / cm. 2 The dyed fabric is dried at a temperature of 1450℃ and a speed of 8m / min. The dried fabric is then steamed at a speed of 15m / min, a steam pressure of 5bar, a steam volume of 60%, and a temperature of 150℃ to obtain the pearl fabric product.

[0030] Example 3

[0031] The dyeing solution consists of the following components by mass percentage: 25% reactive dye, 4% cocoamine polyoxyethylene ether, 5% polyhexamethylene guanidine, 1% acetone, 8% soda ash, and the balance being water.

[0032] The dyeing and finishing process for pearl-textured fabric products includes the following steps:

[0033] The pearl wool fabric is first sewn into tubes with 15mm stitches at a speed of 20m / min. Then, it is dyed for 35 minutes at 80℃ and a liquor ratio of 1:30. Afterward, the fabric is squeezed dry, and the roller pressure is set to 10kg / cm. 2 The dyed fabric is dried at a temperature of 160℃ and a speed of 10m / min. The dried fabric is then steamed at a speed of 15m / min, a steam pressure of 6bar, a steam volume of 70%, and a temperature of 150℃ to obtain the pearl fabric product.

[0034] Example 4

[0035] The only difference between this embodiment and Embodiment 3 is the addition of 8% by weight of coconut oil amine polyoxyethylene ether, 1% by weight of polyhexamethylene guanidine, and 2% by weight of acetone.

[0036] Example 5

[0037] The only difference between this embodiment and Embodiment 3 is the addition of 5% by weight of coconut oil amine polyoxyethylene ether, 4% by weight of polyhexamethylene guanidine, and 1% by weight of acetone.

[0038] Example 6

[0039] The only difference between this embodiment and Embodiment 3 is the addition of 7% by weight of coconut oil amine polyoxyethylene ether, 2% by weight of polyhexamethylene guanidine, and 2% by weight of acetone.

[0040] Example 7

[0041] The only difference between this embodiment and Embodiment 6 is the dyeing and finishing process of the pearl fabric product, which includes the following steps:

[0042] The pearl wool fabric is first sewn into tubes with 15mm stitches at a speed of 20m / min. Then, it is dyed for 35 minutes at 80℃ and a liquor ratio of 1:30. Afterward, the fabric is squeezed dry, and the roller pressure is set to 10kg / cm. 2 The dyed fabric is dried at a temperature of 160℃ and a speed of 10m / min. A 20g / L aqueous solution of primary and secondary amino silicone oils is used as a softener, with a mass ratio of 2:1. The fabric is softened at a liquor ratio of 1:10. The softened fabric is then steamed at a speed of 15m / min, a steam pressure of 6bar, a steam volume of 70%, and a temperature of 150℃ to obtain the pearl fabric product.

[0043] Example 8

[0044] The only difference between this embodiment and Embodiment 6 is that a mixed aqueous solution of primary amino silicone oil, secondary amino silicone oil and sodium cocoyl glutamate with a concentration of 20 g / L is used as the softener, and the mass ratio of primary amino silicone oil, secondary amino silicone oil and sodium cocoyl glutamate is 1:1:1.

[0045] Example 9

[0046] The only difference between this embodiment and Example 6 is that a mixed aqueous solution of primary amino silicone oil, secondary amino silicone oil, tertiary amino silicone oil and sodium cocoyl glutamate with a concentration of 20 g / L is used as a softener, and the mass ratio of primary amino silicone oil, secondary amino silicone oil, tertiary amino silicone oil and sodium cocoyl glutamate is 1:1:1:1.

[0047] Example 10

[0048] The difference between this embodiment and Embodiment 6 is that a mixed aqueous solution of primary amino silicone oil, secondary amino silicone oil, tertiary amino silicone oil and sodium cocoyl glutamate with a concentration of 20 g / L is used as a softener, and the mass ratio of primary amino silicone oil, secondary amino silicone oil, tertiary amino silicone oil and sodium cocoyl glutamate is 1:1:1:2.

[0049] Comparative Example 1

[0050] The only difference between this comparative example and Example 3 is that the dyeing solution is composed of the following components by mass percentage: 25% reactive dye, 9% cocoaamine polyoxyethylene ether, 2% acetone, 8% soda ash, and the balance being water.

[0051] Comparative Example 2

[0052] The only difference between this comparative example and Example 3 is that the dye solution without dyeing is composed of the following components by mass percentage: 25% reactive dye, 9% polyhexamethylene guanidine, 2% acetone, 8% soda ash, and the balance being water.

[0053] The color fastness to rubbing and perspiration of the pearl-embellished fabric products prepared in Examples 1-10 and Comparative Examples 1-2 were tested using a Ci4000 color fastness tester for rubbing and a Ci4000 color fastness tester for perspiration (Atlas). The test results for the color fastness of the pearl-embellished fabric products are shown in the table below:

[0054]

[0055] By comparing the data of Examples 1-10 and Comparative Examples 1-2, it was found that the pearl fabric products of Examples 1-10 have higher color fastness to rubbing and perspiration compared with Comparative Examples 1-2. This indicates that the use of reactive dyes to dye and finish pearl fabric, and the addition of cocoamine polyoxyethylene ether, polyhexamethylene guanidine and acetone as dyeing auxiliaries during dyeing, significantly improves the color fastness of the dyeing of pearl fabric products.

[0056] Comparing the data from Examples 6-10, it was found that the pearl fabric products of Examples 8-10 had higher color fastness to rubbing and perspiration compared to Comparative Examples 6-7. This indicates that by using amino silicone oil and sodium cocoyl glutamate as composite softeners during the finishing softening process, the color fastness of the dyeing of pearl fabric products can be further improved.

[0057] Softness Test: Thirty volunteers were recruited to rate and evaluate the softness of the pearl wool products from Examples 6 to 10. The score range was 0 to 10, with low to high scores indicating high softness. The evaluation results were the total score, and the results are shown in the table below:

[0058]

[0059] By comparing the data from Examples 6 to 10, it was found that the softness scores of the pearl fabric products in Examples 8 to 10 were higher than those in Examples 6 to 7. This indicates that the use of amino silicone oil and sodium cocoyl glutamate as composite softeners during the finishing softening process further improved the softness of the pearl fabric products.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. The dyeing and finishing process for pearl-textured fabric products, characterized in that, Includes the following steps: The pearl fabric is dyed, squeezed, and finished in sequence to obtain the pearl fabric product; the dyeing liquor is composed of the following components by mass percentage: 5%~25% reactive dye, 5%~11% dyeing auxiliary agent, 3%~8% soda ash, and the balance is water. The dyeing auxiliary agent is a mixture of cocoamine polyoxyethylene ether, polyhexamethylene guanidine and acetone; The finishing process involves drying, softening, and steaming in sequence. The softener used for softening is a mixture of amino silicone oil and a 15% (w / w) sodium cocoyl glutamate solution, with a softener concentration of 20 g / L.

2. The dyeing and finishing process for pearl-textured fabric products according to claim 1, characterized in that, The mass ratio of the coconut oil amine polyoxyethylene ether, polyhexamethylene guanidine, and acetone is 5:4:1 to 7:2:

1.

3. The dyeing and finishing process for pearl-textured fabric products according to claim 1, characterized in that, The mass ratio of the amino silicone oil to the sodium cocoyl glutamate solution is 3:1~2.

4. The dyeing and finishing process for pearl-textured fabric products according to claim 1, characterized in that, The amino silicone oil is two or three of the following: primary amino silicone oil, secondary amino silicone oil, and tertiary amino silicone oil.

5. The dyeing and finishing process for pearl-textured fabric products according to claim 1, characterized in that, The pearl fabric is composed of 96% wool and 4% cashmere by weight.

6. The dyeing and finishing process for pearl-textured fabric products according to claim 1, characterized in that, Before dyeing, the dyeing process also involved sewing, with stitches of 10-15mm and a machine speed of 10-20m / min.

7. The dyeing and finishing process for pearl-textured fabric products according to claim 1, characterized in that, The staining temperature is 60~80℃, the time is 25~35min, and the liquor ratio is 1:15~30.

8. The dyeing and finishing process for pearl-textured fabric products according to claim 1, characterized in that, The drying roller pressure is 8~10 kg / cm. 2 The temperature is 140~160℃, and the vehicle speed is 6~10m / min; the steaming vehicle speed is 10~15m / min, the steam pressure is 3~6bar, the steam volume is 50%~70%, and the temperature is 140~150℃.

Images