A machine-washable and anti-fibrillation functional additive

Abstract

The invention discloses a machine-washable anti-fibrillation functional auxiliary agent, comprising an anti-fibrillation agent, sodium sulfate, and a solvent. The anti-fibrillation agent is a multifunctional cross-linking agent, the weight ratio of the anti-fibrillation agent to the sodium sulfate is 5-20:1, and the weight ratio of the anti-fibrillation agent to the solvent is 0.2-2:1. The auxiliary agent can perform a cross-linking treatment on fabrics at room temperature of 20-30°C. After the treatment, the silk, tencel, or fabrics containing such fibers are not prone to fibrillation and fuzzing after multiple machine washing and drying, thereby ensuring that the silk and tencel fabrics have a durable and bright luster.

Description

Technical Field

[0001] The invention relates to the field of textile finishing agents, and in particular to a machine-washable and anti-fibrillation functional auxiliary agent. Background Art

[0002] Silk is soft, comfortable, light, and smooth, with excellent skin affinity and a unique soft luster. It also has excellent wearability properties such as good moisture absorption, breathability, and anti-static properties. However, silk is inherently delicate and has drawbacks such as poor resistance to friction and prone to pilling and wrinkling. Washing can also cause silk fabrics to become gray, dull in color, and stiff in feel.

[0003] Tencel fiber has a dry strength slightly lower than polyester but significantly higher than typical viscose fiber. Its wet strength is significantly improved over viscose, and it exhibits very high rigidity, good dimensional stability after washing, and high hygroscopicity. Its cross-section is round or oval, with a beautiful luster, soft hand, good drape, and excellent flow. However, it has a similar structure to silk fiber, with numerous microfibrils within and few bonds between them. Mechanical friction in a wet state causes Tencel fiber to split into fibrils along the fiber axis. The finished fabric exhibits surface whitening and fuzzing, and even pilling, after machine washing, causing the fabric to appear damaged and worn.

[0004] Currently, high-end silk fabrics and Tencel fibers are generally cleaned by dry cleaning. Even then, it is difficult to avoid wear and tear during the dry cleaning process. Dry cleaning is also costly, and dry cleaning agents are not environmentally friendly and pose a risk of cancer. Machine-washable anti-fibrillation functional additives added to the finishing process of silk or silk-containing fabrics can overcome the fragility of silk, making it wear-resistant, especially able to withstand the wear and tear of wet machine washing. After 30 to 50 washes and dryers at home, the silk fibers in the fabric will not fibrillate, resulting in no noticeable whitening. Furthermore, the treatment process improves the chemical bonding between the dye and the fabric, preventing the fabric from fading significantly after washing, truly achieving a lasting, bright luster and a lasting, smooth feel for silk or silk-containing fabrics.

[0005] Therefore, anti-fibrillation auxiliaries significantly improve the problem of difficult-to-care silk and meet the needs of the current market.

[0006] Currently, research on preventing silk fabric fibrillation and stiffness is limited. Furthermore, treatment of silk often compromises its inherent properties, such as smooth feel, brilliant luster, and moisture-wicking properties. Researchers have mostly attempted to improve the wrinkle and fibrillation resistance of silk or silk-containing fabrics by adding large amounts of resin. However, this treatment often results in a significant decrease in the silk fabric's hydrophilicity and stiffness.

[0007] The inventors previously conducted research on machine-washable silk fabrics, and published a Chinese patent with publication number CN115897233A. This patent discloses a method for treating silk fabrics to prevent dust damage. The method involves soaking the silk fabric in a dust-proofing agent treatment solution and then subjecting it to an alkali treatment. During the alkali treatment step, the silk fabric is first kept at 25-35°C, then heated to 60-90°C for treatment, and then washed and dried. Although the inventors previously disclosed an excellent dust-proofing agent that can basically meet the machine washing requirements of silk or silk-containing fabrics, with no dust damage after 10 machine washes, its washability does not achieve excellent results. At the same time, due to the influence of the textile post-finishing process, the anti-fibrillating agent is easily hydrolyzed, which limits the finishing effect of the anti-fibrillating agent.

[0008] Therefore, there is a need for a functional auxiliary agent that has strong machine washing resistance and anti-fibrillation effect. Summary of the Invention

[0009] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a machine-washable anti-fibrillation functional auxiliary agent to improve the problem of dust damage or wind marks on silk, Tencel or fabrics containing these fibers after machine washing, and to give silk or Tencel fibers machine-washable anti-fibrillation functionality, so that the treated finished fabrics or garments will have almost no dust damage and white marks on the surface after being washed and dried in a washing machine 20 to 50 times.

[0010] To achieve the above object, the present invention provides a machine-washable anti-fibrillation functional auxiliary agent, comprising an anti-fibrillation agent, sodium sulfate, and a solvent, wherein the anti-fibrillation agent is a multi-functional group cross-linking agent.

[0011] Furthermore, the multifunctional cross-linking agent of the anti-fibrillating agent is one or more of aziridine, triglycidyl isocyanurate, and cyanuric chloride derivatives.

[0012] Furthermore, the solvent is an alcohol solvent.

[0013] Furthermore, the solvent is one or more of ethanol, propanol, isopropanol and butanol.

[0014] Furthermore, the weight ratio of the anti-fibrillating agent to sodium sulfate is 5-10:1.

[0015] Furthermore, the weight ratio of the antifibrillating agent to the solvent is 0.2-1:1.

[0016] Furthermore, a penetrant is also included.

[0017] Furthermore, the weight ratio of the penetrant to the anti-fibrillating agent is 1:10-200.

[0018] The present invention has the following advantages:

[0019] The machine-washable anti-fibrillation functional additive provided by the present invention is applicable to various silks, fabrics containing silk or Tencel, or fabrics containing Tencel. After adding the machine-washable anti-fibrillation functional additive during the finishing process, the silk still feels soft and elegant, retaining the original color and unique luster of the silk. After 20 to 50 washes and drying cycles, the color and luster of the silk surface remain unchanged, and there are no gray scratches or white marks. The machine-washable anti-fibrillation functional additive provided by the present invention has low corrosion to textiles, does not cause secondary pollution, and does not affect the hand feel.

[0020] The machine-washable anti-fibrillation functional auxiliary agent of the present invention adopts a proportion of an anti-fibrillation agent and sodium sulfate, so that the anti-fibrillation agent can be more quickly and fully bound to the fiber during the finishing process, greatly improving the binding and loading capacity of the anti-fibrillation agent, and at the same time solving the problem that the anti-fibrillation agent is easily hydrolyzed in subsequent finishing process steps, reducing the hydrolysis of the anti-fibrillation agent, greatly improving the anti-fibrillation effect of the finished product of silk, containing silk or Tencel, or containing Tencel fabric, reducing the amount of the anti-fibrillation agent used, and increasing the washing durability of the finished product.

[0021] The selected multifunctional cross-linking agent, combined with sodium sulfate, significantly improves the anti-fibrillation effect. The alcohol solvent is selected as the solvent of the composite auxiliary agent to help the anti-fibrillation agent dissolve in water and prevent its hydrolysis and ineffectiveness. At the same time, the treated silk-containing fabric can have a better touch during subsequent use and become softer and smoother with each wash. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with embodiments and effect examples, but the scope of the present invention is not limited thereto.

[0023] Example 1:

[0024] A machine-washable and anti-fibrillation functional additive, composed of the following parts by weight:

[0025] 20 parts of cyanuric chloride derivative, 1 part of sodium sulfate, 20 parts of ethanol, and 0.1 part of BASF's Kieralon XC-J emulsifying penetrant.

[0026] The preparation method of cyanuric chloride derivative is as follows: 5.85g of sodium p-aminobenzenesulfonate is dissolved in 40ml of water, and then sodium bicarbonate is added, which is recorded as solution A; 20g of ice cubes and 5.53g of cyanuric chloride monomer are added to the reaction device, and the stirrer is started for stirring, and then solution A is slowly dripped into the reaction device, and the mixture is reacted at 10°C for 2h. The reacted material is acidified and then filtered, washed with ether, and dried to obtain the finished anti-fibrillating agent.

[0027] Example 2:

[0028] A machine-washable and anti-fibrillation functional additive, composed of the following parts by weight:

[0029] 20 parts of aziridine, 1 part of sodium sulfate, 20 parts of ethanol, and 0.1 part of BASF's Kieralon XC-J emulsifying penetrant.

[0030] Example 3:

[0031] The difference from Example 2 is that a machine washable anti-fibrillation functional additive is composed of the following parts by weight:

[0032] 20 parts of aziridine, 4 parts of sodium sulfate, 20 parts of ethanol, and 0.1 part of BASF's Kieralon XC-J emulsifying penetrant.

[0033] Example 3:

[0034] The difference from Example 2 is that a machine washable anti-fibrillation functional additive is composed of the following parts by weight:

[0035] 20 parts of aziridine, 1 part of sodium sulfate, 20 parts of propanol, and 0.1 part of BASF's Kieralon XC-J emulsifying penetrant.

[0036] Example 4:

[0037] The difference from Example 2 is that a machine washable anti-fibrillation functional additive is composed of the following parts by weight:

[0038] 20 parts of aziridine, 1 part of sodium sulfate, 20 parts of isopropyl alcohol, and 0.1 part of BASF's Kieralon XC-J emulsifying penetrant.

[0039] Example 5:

[0040] The difference from Example 2 is that a machine washable anti-fibrillation functional additive is composed of the following parts by weight:

[0041] 20 parts of aziridine, 1 part of sodium sulfate, 20 parts of ethanol, and 0.5 parts of BASF's Kieralon XC-J emulsifying penetrant.

[0042] Comparative Example 1:

[0043] The difference from Example 1 is that a functional additive for preventing machine washing and fibrillation is composed of the following parts by weight: 20 parts of cyanuric chloride derivatives and 0.1 parts of BASF's Kieralon XC-J emulsifying penetrant.

[0044] The synthesis process is as follows: 5.85g of sodium p-aminobenzenesulfonate is dissolved in 40ml of water, and then sodium bicarbonate is added, which is recorded as solution A. 20g of ice cubes and 5.53g of cyanuric chloride monomer are added to the reaction device, and the stirrer is started to stir. Then, solution A is slowly dripped into the reaction device and reacted at 10°C for 2h. The reacted material is acidified and filtered, washed with ether, and dried to obtain the finished anti-fibrillating agent.

[0045] Comparative Example 2:

[0046] The difference from Example 2 is that a machine washable anti-fibrillation functional additive is composed of the following parts by weight:

[0047] 20 parts of aziridine, 20 parts of ethanol, and 0.1 parts of BASF's Kieralon XC-J emulsifying penetrant.

[0048] Comparative Example 3:

[0049] The difference from Example 2 is that a machine washable anti-fibrillation functional additive is composed of the following parts by weight:

[0050] 20 parts of aziridine, 20 parts of ethanol.

[0051] Comparative Example 4:

[0052] The difference from Example 2 is that a machine washable anti-fibrillation functional additive is composed of the following parts by weight:

[0053] 20 parts of aziridine, 1 part of sodium sulfate, 20 parts of deionized water, and 0.1 part of BASF's Kieralon XC-J emulsifying penetrant.

[0054] The machine washable anti-fibrillation functional additives prepared in Examples 1-6 and Comparative Examples 1-4 were applied to the fabric finishing process.

[0055] Fabric: Silk crepe satin, 70g / m 2 , reactive black. The treatment process includes the following steps:

[0056] ①. After the silk crepe satin is beam-dyed, it is shaped and dried on a stenter;

[0057] ② in the rolling tank configuration machine wash anti-fibrillation functional additives, wherein the concentration of machine wash anti-fibrillation functional additives is 100g / L, the temperature is maintained at 20 ℃, the silk crepe satin padding the above treatment solution, the rolling rate is 80% to 100%;

[0058] ③. The silk crepe satin, after being padded with the treatment solution, was rolled and stacked on an A-frame for 24 hours. During this process, the fabric reel on the A-frame rotated evenly at a speed of 15m / min.

[0059] ④ After cold stacking, the silk crepe satin was alkali washed in a continuous washing machine. Sodium carbonate was added to the alkali washing tank of the continuous washing machine at a concentration of 15g / L. The fabric was treated at 50°C for 5 minutes.

[0060] ⑤. The silk crepe satin after alkali washing is neutralized in a continuous water washing machine, wherein acetic acid is added to the neutralization tank of the washing machine with a concentration of 0.5g / L. The fabric is treated at room temperature for 5 minutes, and then the treated silk crepe satin is shaped and softened.

[0061] Table 1 Comparison of anti-fibrillation effects of examples

[0062]

[0063]

[0064] Finally, it is necessary to explain here that the above embodiments are only used to further illustrate the technical solution of the present invention in detail and cannot be understood as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made by technicians in this field based on the above content of the present invention all fall within the scope of protection of the present invention.

Claims

1. A machine washable anti-fibrillation functional additive, characterized by: Including an anti-fibrillating agent, sodium sulfate, a solvent, the anti-fibrillating agent is a multifunctional cross-linking agent, the solvent is an alcohol solvent, the weight ratio of the anti-fibrillating agent to the solvent is 0.2-1: 1; The multifunctional cross-linking agent of the anti-fibrillation agent is one or more of aziridine and cyanuric chloride derivatives; The alcohol solvent is one or more of ethanol, propanol, isopropanol and butanol; The preparation method of the cyanuric chloride derivative is as follows: 5.85g of sodium p-aminobenzenesulfonate is dissolved in 40ml of water, and then sodium bicarbonate is added, which is recorded as solution A; 20g of ice cubes and 5.53g of cyanuric chloride monomer are added to a reaction device, and a stirrer is started to stir, and then solution A is slowly dripped into the reaction device, and the mixture is reacted at 10°C for 2h. The reacted material is subjected to acid treatment and then filtered, washed with ether, and dried to obtain a finished anti-fibrillating agent.

2. The machine-washable anti-fibrillation functional additive according to claim 1, characterized in that: The weight ratio of the anti-fibrillating agent to sodium sulfate is 5-10:

1.

3. The machine washable anti-fibrillation functional additive according to claim 1, characterized in that: Also included are penetrants.

4. The machine-washable anti-fibrillation functional additive according to claim 3, characterized in that: The weight ratio of the penetrant to the anti-fibrillating agent is 1:10-200.

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