High-speed elasticizing low-splashing textile fiber auxiliary agent

Abstract

The invention relates to the field of textile fiber treatment, in particular to a high-speed elasticizing low-splashing textile fiber auxiliary. The textile fiber auxiliary agent comprises the following components in parts by weight: 55-75 parts of a basic auxiliary agent, 10-30 parts of a first mixed additive, 15-45 parts of a second mixed additive and 15-45 parts of a third mixed additive, according to the present invention, the prepared auxiliary agent can maintain the viscoelasticity of the textile fiber during the high-speed spinning or high-speed friction process.

Description

Technical Field

[0001] The invention relates to the field of textile fiber processing, in particular to a high-speed texturing and low-splashing textile fiber auxiliary agent. Background Art

[0002] Textile auxiliaries are essential chemicals used in the production and processing of textiles. They play an indispensable role in improving the product quality and added value of textiles. They not only give textiles various special functions and styles, such as softness, wrinkle resistance, shrinkage resistance, waterproofness, antibacterial, antistatic, and flame retardancy, but also improve dyeing and finishing processes, saving energy and reducing processing costs. Textile auxiliaries are crucial to improving the overall level of the textile industry and their role in the textile industry chain. Existing textile auxiliaries mainly include scouring agents, dyes, leveling agents, softeners, hair effect enhancers, polyester low-temperature dyeing carriers, alkali substitutes, CT powder, chemical fiber oils, high-efficiency deboiling powder, hydrogen peroxide stabilizers, silicon removers, foaming agents, raising agents, color fixatives, etc. However, for textile fibers involved in high-speed spinning, the existing technology rarely involves auxiliaries that can maintain the elasticity and wettability of textile fibers during high-speed spinning. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-speed texturing and low-splashing textile fiber auxiliary agent to solve the deficiencies in the related art.

[0004] To achieve the above object, the present invention provides the following technical solutions: According to a first aspect of an embodiment of the present disclosure, a high-speed texturing and low-splashing textile fiber auxiliary is provided, wherein the textile fiber auxiliary comprises the following components in parts by weight: 55-75 parts by weight of a basic additive, 10-30 parts by weight of a first mixed additive, 15-45 parts by weight of a second mixed additive, and 15-45 parts by weight of a third mixed additive.

[0005] In one aspect of the embodiments of the present disclosure, preferably, the textile fiber auxiliary agent includes the following components in parts by weight: 55-60 parts by weight of a basic additive, 10-15 parts by weight of a first mixed additive, 20-30 parts by weight of a second mixed additive, and 25-35 parts by weight of a third mixed additive.

[0006] In one aspect of the embodiments of the present disclosure, preferably, the textile fiber auxiliary agent includes the following components in parts by weight: 55-60 parts by weight of a basic additive, 10-15 parts by weight of a first mixed additive, 20-25 parts by weight of a second mixed additive, and 25-30 parts by weight of a third mixed additive.

[0007] In one aspect of the embodiments of the present disclosure, the base additive comprises the following components: a: at least one of diethyl tartrate, diethyl maleate, and diethyl succinate; b: at least one of methanol, ethanol, n-propanol and isopropanol; c: at least one of isooctyl palmitate, isooctyl stearate and isooctyl oleate.

[0008] In one aspect of the embodiments of the present disclosure, preferably, the base additive comprises the following components: a: diethyl tartrate, diethyl maleate or diethyl succinate; b: methanol, ethanol, n-propanol or isopropanol; c: Isooctyl palmitate, isooctyl stearate or isooctyl oleate.

[0009] In one aspect of the embodiments of the present disclosure, further preferably, the base additive comprises the following components: a: diethyl tartrate; b: methanol, ethanol, n-propanol or isopropanol; c: Isooctyl palmitate, isooctyl stearate or isooctyl oleate.

[0010] In one aspect of the embodiments of the present disclosure, further preferably, the base auxiliary agent comprises diethyl tartrate, isopropyl alcohol or isooctyl palmitate.

[0011] In one aspect of the embodiments of the present disclosure, the base auxiliary agent comprises 10-20 parts by weight of diethyl tartrate, 15-25 parts by weight of isopropyl alcohol, and 15-25 parts by weight of isooctyl palmitate.

[0012] In one aspect of the embodiments of the present disclosure, the first mixed additive is polyvinyl butyral dissolved in a first organic solvent; wherein the first organic solvent is selected from cyclohexanone and / or butanone.

[0013] In one aspect of the embodiments of the present disclosure, preferably, the first mixed additive is polyvinyl butyral dissolved in a first organic solvent; wherein the first organic solvent is selected from cyclohexanone.

[0014] In one aspect of the embodiments of the present disclosure, the second mixed additive is modified polyvinyl alcohol dissolved in a second organic solvent; wherein the second organic solvent is selected from polyols.

[0015] In one aspect of the embodiments of the present disclosure, the polyol is selected from ethylene glycol, propylene glycol, glycerol, butylene glycol or glycerol.

[0016] In one aspect of the embodiments of the present disclosure, the modified polyvinyl alcohol is polyvinyl alcohol modified with anhydride; wherein the anhydride is selected from maleic anhydride, phthalic anhydride, succinic anhydride or nadic anhydride.

[0017] In one aspect of the embodiments of the present disclosure, the anhydride-modified polyvinyl alcohol is prepared by the following steps: Providing polyvinyl alcohol; dissolving the polyvinyl alcohol in ethyl acetate, then adding acid anhydride and dimethylaminopyridine; raising the temperature to 75°C-85°C and stirring for 2-4 hours, washing and drying to obtain the anhydride-modified polyvinyl alcohol.

[0018] In one aspect of the embodiments of the present disclosure, preferably, the acid anhydride is selected from nadic anhydride.

[0019] In one aspect of an embodiment of the present disclosure, the third mixed additive comprises at least two of an antistatic agent, an anti-ultraviolet agent, a defoaming agent, a dispersant, a leveling agent and a surface tension additive; the third mixed additive further comprises a third organic solvent; the third organic solvent is selected from methyl acetate, ethyl acetate, n-propyl acetate or amyl acetate.

[0020] In one aspect of the embodiments of the present disclosure, the third organic solvent is selected from ethyl acetate.

[0021] In one aspect of an embodiment of the present disclosure, the antistatic agent is selected from any one of phosphate esters, polyethylene glycol esters, quaternary ammonium compounds, polysiloxanes, polyol amines and polyvinyl chloride derivatives; but not limited thereto, the antistatic agent involved in the present disclosure can be selected from any antistatic agent in the prior art in the art, and is not limited thereto.

[0022] In one aspect of an embodiment of the present disclosure, the defoaming agent is selected from any one of tributyl phosphate, defoaming agent Deqian 3100, and defoaming agent BYK088; but not limited to this. The defoaming agent involved in the content of the present disclosure can be selected from any defoaming agent in the prior art in the field, and is not limited to this.

[0023] In one aspect of the embodiment of the present disclosure, the dispersant is selected from polycarboxylate dispersant 5040 or sodium hexametaphosphate; but not limited thereto, the dispersant involved in the present disclosure can be selected from any dispersant in the prior art in the art, and is not limited thereto.

[0024] In one aspect of an embodiment of the present disclosure, the leveling agent is selected from leveling agent BYK-333 or silicone leveling agent HY-5030; but not limited thereto, the leveling agent involved in the present disclosure can be selected from any leveling agent in the prior art in the field, and is not limited thereto.

[0025] In one aspect of the embodiments of the present disclosure, the surface tension modifier involved in the present disclosure can be selected from any surface tension modifier in the prior art.

[0026] In one aspect of the embodiment of the present disclosure, the third mixed additive may also include any one of a softener, a waterproofing agent, a flame retardant, a coating agent, a thickener or an adhesive; the softener, waterproofing agent, flame retardant, coating agent, thickener or adhesive may be selected from any softener, waterproofing agent, flame retardant, coating agent, thickener or adhesive in the prior art.

[0027] In one aspect of an embodiment of the present disclosure, the textile fiber auxiliary agent includes the following components in parts by weight: 8 parts by weight of anhydride-modified polyvinyl alcohol, 16 parts by weight of glycerol, 5 parts by weight of polyvinyl butyral, 8 parts by weight of cyclohexanone, 15 parts by weight of diethyl tartrate, 20 parts by weight of isopropyl alcohol, 22 parts by weight of isooctyl palmitate, 1 part by weight of tributyl phosphate, 4 parts by weight of sodium hexametaphosphate, 2 parts by weight of BYK-333 and 18 parts by weight of ethyl acetate.

[0028] Compared with the prior art, the present invention has the beneficial effect of preparing an auxiliary agent capable of maintaining the viscoelasticity of textile fibers during high-speed spinning or high-speed friction. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of this application, rather than all the embodiments. The relevant embodiments described herein are illustrative and are used to provide a basic understanding of this application. The embodiments of this application should not be interpreted as limiting this application.

[0030] For the sake of clarity, only some numerical ranges are specifically disclosed herein. However, any lower limit may be combined with any upper limit to form an unspecified range; and any lower limit may be combined with other lower limits to form an unspecified range, and similarly, any upper limit may be combined with any other upper limit to form an unspecified range. In addition, each individually disclosed point or single value may itself serve as a lower limit or upper limit and be combined with any other point or single value, or with other lower limits or upper limits, to form an unspecified range.

[0031] As used herein, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0032] In the description herein, unless otherwise specified, “above” and “below” include the number itself.

[0033] Unless otherwise specified, the terms used in this disclosure have the commonly understood meanings commonly understood by those skilled in the art. Unless otherwise specified, the numerical values of the various parameters mentioned in this disclosure can be measured using various measurement methods commonly used in the art (for example, they can be tested according to the methods given in the examples of this disclosure).

[0034] The term "about" is used to describe and illustrate small changes. When used in conjunction with an event or situation, the term may refer to an example in which the event or situation occurs precisely and an example in which the event or situation occurs very approximately. For example, when used in conjunction with a numerical value, the term may refer to a variation range of less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%. In addition, amounts, ratios, and other numerical values are sometimes presented in this article in a range format. It should be understood that such range formats are for convenience and brevity, and should be flexibly understood to include not only numerical values explicitly designated as range limits, but also all individual numerical values or subranges encompassed within the range, as if each numerical value and subrange were explicitly designated.

[0035] A list of items connected by the terms "at least one of," "at least one of," "at least one of," or other similar terms can mean any combination of the listed items. For example, if items A and B are listed, the phrase "at least one of A and B" means only A; only B; or A and B. In another example, if items A, B, and C are listed, the phrase "at least one of A, B, and C" means only A; or only B; only C; A and B (excluding C); A and C (excluding B); B and C (excluding A); or all of A, B, and C. Item A can contain a single component or multiple components. Item B can contain a single component or multiple components. Item C can contain a single component or multiple components.

[0036] In the present disclosure, the reaction formula for polyvinyl alcohol modified with anhydride is shown below (taking nadic anhydride as an example): The present disclosure is further described below with reference to the following examples. It should be understood that these examples are only used to illustrate the present disclosure and are not intended to limit the scope of the present disclosure.

[0037] Examples and Comparative Examples: Example 1 The first embodiment includes the following steps: 1. Preparation of anhydride-modified polyvinyl alcohol: Weigh 50 g of polyvinyl alcohol (PVA-2088, degree of polymerization of approximately 2000); dissolve the polyvinyl alcohol in 300 mL of ethyl acetate, then add 10 g of nadic anhydride and 0.5 g of dimethylaminopyridine; raise the temperature to 80°C and stir for 3 hours. After washing and drying, obtain polyvinyl alcohol modified with nadic anhydride.

[0038] 2. Preparation of the textile fiber auxiliary agent of Example 1: Weigh 8 parts by weight of anhydride-modified polyvinyl alcohol and dissolve it in 16 parts by weight of glycerol as a second mixed additive; Weigh 5 parts by weight of polyvinyl butyral (TB-14) and dissolve it in 8 parts by weight of cyclohexanone as a first mixed additive; Weigh 15 parts by weight of diethyl tartrate, 20 parts by weight of isopropyl alcohol, and 22 parts by weight of isooctyl palmitate as base additives; Weigh 1 part by weight of tributyl phosphate as a defoaming agent, 4 parts by weight of sodium hexametaphosphate as a dispersant, and 2 parts by weight of BYK-333 as a leveling agent; dissolve them in 18 parts by weight of ethyl acetate; The aforementioned additives are mixed to obtain the high-speed texturing and low-splashing textile fiber additive of Example 1.

[0039] Example 2 The steps of Example 2 are the same as those of Example 1, except that in Example 2, maleic anhydride of equal mass is used to modify the polyvinyl alcohol instead of nadic anhydride used in Example 1.

[0040] Example 3 The steps of Example 3 are the same as those of Example 1, except that in Example 3, an equal mass of succinic anhydride is used to modify the polyvinyl alcohol instead of nadic anhydride used in Example 1.

[0041] Example 4 The steps of Example 4 are the same as those of Example 1, except that in Example 4, phthalic anhydride of equal mass is used to modify the polyvinyl alcohol instead of nadic anhydride used in Example 1.

[0042] Comparative Example 1 The steps of Comparative Example 1 are the same as those of Example 1, except that in Comparative Example 1, 13 parts by weight of cyclohexanone is directly added instead of dissolving 5 parts by weight of polyvinyl butyral (TB-14) in 8 parts by weight of cyclohexanone.

[0043] Comparative Example 2 The steps of Comparative Example 2 are the same as those of Example 1, except that Comparative Example 2 does not use 15 parts by weight of diethyl tartrate, 20 parts by weight of isopropyl alcohol, and 22 parts by weight of isooctyl palmitate as base additives; instead, 27 parts by weight of isopropyl alcohol and 30 parts by weight of isooctyl palmitate are used as base additives.

[0044] Comparative Example 3 The steps of Comparative Example 3 are the same as those of Example 1, except that in Comparative Example 3, the polyvinyl alcohol is not modified with anhydride, but unmodified polyvinyl alcohol is directly used.

[0045] Test method for tensile elastic recovery of textiles: FDY polyester 150D fiber was soaked in Examples 1 to 4 and Comparative Examples 1 to 2 at 30°C for 4 hours, and then spun at a high speed of 4500 m / min. The tensile elastic recovery rate was then tested according to the method of FZ / T70006-2022. The recovery rate of Example 1 was 58%; the recovery rate of Example 2 was 42%; the recovery rate of Example 3 was 38%; the recovery rate of Example 4 was 35%; the recovery rate of Comparative Example 1 was 25%; the recovery rate of Comparative Example 2 was 32%; the recovery rate of Comparative Example 3 was 26%; and the recovery rate of the sample obtained after high-speed spinning of ordinary FDY polyester 150D (referred to as Comparative Example 4) was 17%.

[0046] In the present disclosure, anhydride-modified polyvinyl alcohol (PVA) exhibits excellent film-forming properties, resulting in films with high transparency and strength, effectively bonding fibers. Polyvinyl butyral, in organic solvents, can form coatings with high tensile strength, impact resistance, and elasticity. The anhydride-modified PVA exhibits improved compatibility and synergy with the polyvinyl butyral, enabling the additive to form a more uniform, robust bonding layer and high-performance film on the fiber surface. This enhances interfiber bonding and reduces fiber breakage and spattering during high-speed texturing.

[0047] In addition, anhydride modification can introduce a structure with higher heat resistance and solvent resistance, so that the modified polyvinyl alcohol and polyvinyl butyral combination can still maintain good performance stability in high temperature and organic solvent environments, avoiding the failure of the additive or the decrease in fiber elasticity due to the effects of high temperature or solvents.

[0048] Therefore, the performance of Examples 1 to 4 is better than that of Comparative Example 1 and Comparative Example 4.

[0049] In the present disclosure, diethyl tartrate has a melting point of 17°C and exhibits good adhesion at low temperatures and good fluidity at high temperatures. Therefore, during the soaking process, the additive containing diethyl tartrate can fully adhere to the textile fibers. During high-speed spinning, as the temperature rises, the additive containing diethyl tartrate fully infiltrates the textile fibers, facilitating the modified polyvinyl alcohol and polyvinyl butyral to exert the aforementioned effects. Therefore, the performance of Examples 1 to 4 is superior to that of Comparative Example 2.

[0050] By comparing Examples 1 to 4, it can be seen that after polyvinyl alcohol is modified with nadic acid anhydride, a stronger network structure is formed between its molecular chains compared with Examples 2 to 4 modified with other anhydrides and the unmodified comparative example 3, thereby significantly improving the viscoelasticity of the material; thanks to the effect of the multi-crosslinked network (nadic acid groups, polyvinyl alcohol segments, and polyvinyl butyral segments form an interpenetrating crosslinked network), the combination of physical and chemical crosslinking enables the material to maintain structural integrity under repeated deformation and pressure, and has good resilience.

[0051] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein.

Claims

1. High-speed texturing and low-splash textile fiber auxiliary agent, characterized by: The textile fiber auxiliary agent comprises the following components in parts by weight: 55-75 parts by weight of a basic additive, 10-30 parts by weight of a first mixed additive, 15-45 parts by weight of a second mixed additive, and 15-45 parts by weight of a third mixed additive.

2. The textile fiber auxiliary agent according to claim 1, characterized in that The textile fiber auxiliary agent comprises the following components in parts by weight: 55-60 parts by weight of a basic additive, 10-15 parts by weight of a first mixed additive, 20-30 parts by weight of a second mixed additive, and 25-35 parts by weight of a third mixed additive.

3. The textile fiber auxiliary agent according to claim 1, characterized in that The basic additive comprises the following components: a: at least one of diethyl tartrate, diethyl maleate, and diethyl succinate; b: at least one of methanol, ethanol, n-propanol and isopropanol; c: at least one of isooctyl palmitate, isooctyl stearate and isooctyl oleate.

4. The textile fiber auxiliary agent according to claim 3, characterized in that The base auxiliary agent comprises 10-20 parts by weight of diethyl tartrate, 15-25 parts by weight of isopropyl alcohol and 15-25 parts by weight of isooctyl palmitate.

5. The textile fiber auxiliary agent according to claim 1, characterized in that The first mixed additive is polyvinyl butyral dissolved in a first organic solvent; wherein the first organic solvent is selected from cyclohexanone and / or butanone.

6. The textile fiber auxiliary agent according to claim 1, characterized in that The second mixed additive is modified polyvinyl alcohol dissolved in a second organic solvent; wherein the second organic solvent is selected from polyols.

7. The textile fiber auxiliary agent according to claim 6, characterized in that The modified polyvinyl alcohol is polyvinyl alcohol modified with anhydride; wherein the anhydride is selected from maleic anhydride, phthalic anhydride, succinic anhydride or nadic anhydride.

8. The textile fiber auxiliary agent according to claim 7, characterized in that The anhydride-modified polyvinyl alcohol is prepared by the following steps: Providing polyvinyl alcohol; dissolving the polyvinyl alcohol in ethyl acetate, then adding acid anhydride and dimethylaminopyridine; raising the temperature to 75°C-85°C and stirring for 2-4 hours, washing and drying to obtain the anhydride-modified polyvinyl alcohol.

9. The textile fiber auxiliary agent according to claim 7 or 8, characterized in that The acid anhydride is selected from nadic anhydride.

10. The textile fiber auxiliary agent according to claim 1, characterized in that: The third mixed additive comprises at least two of an antistatic agent, an anti-ultraviolet agent, a defoaming agent, a dispersant, a leveling agent and a surface tension additive; the third mixed additive further comprises a third organic solvent; the third organic solvent is selected from methyl acetate, ethyl acetate, n-propyl acetate or amyl acetate.

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