阅读说明：本技术 一种高安全性无黄变滑弹柔软整理剂及其制备方法 (High-safety non-yellowing smooth and elastic soft finishing agent and preparation method thereof ) 是由 苏宇 于 2019-11-21 设计创作，主要内容包括：本发明涉及柔软整理剂技术领域,具体涉及一种高安全性无黄变滑弹柔软整理剂及其制备方法,所述柔软整理剂,包括如下重量份的组分：硅油15-25份、聚乙烯醇8-12份、羟甲基纤维素1-2份、抗菌剂1-3份、乳化剂5-10份、有机酸1-2份、芦荟提取物1-2份、溶剂3-8份、水10-15份。本发明具有手感、亲水性好,稳定性高,对织物白度无影响的优点。(The invention relates to the technical field of soft finishing agents, in particular to a high-safety non-yellowing smooth and elastic soft finishing agent and a preparation method thereof, wherein the soft finishing agent comprises the following components in parts by weight: 15-25 parts of silicone oil, 8-12 parts of polyvinyl alcohol, 1-2 parts of hydroxymethyl cellulose, 1-3 parts of an antibacterial agent, 5-10 parts of an emulsifier, 1-2 parts of an organic acid, 1-2 parts of an aloe extract, 3-8 parts of a solvent and 10-15 parts of water. The invention has the advantages of good hand feeling and hydrophilicity, high stability and no influence on the whiteness of the fabric.)

1. The soft finishing agent is characterized by comprising the following components in parts by weight: 15-25 parts of silicone oil, 8-12 parts of polyvinyl alcohol, 1-2 parts of hydroxymethyl cellulose, 1-3 parts of an antibacterial agent, 5-10 parts of an emulsifier, 1-2 parts of an organic acid, 1-2 parts of an aloe extract, 3-8 parts of a solvent and 10-15 parts of water.

2. The soft finish of claim 1, wherein the silicone oil is at least one of an amino silicone oil, a terpolymer silicone oil and a block silicone oil, preferably wherein the amino silicone oil has an ammonia value of 0.4 to 0.6.

3. The soft finish of claim 1, wherein the antimicrobial agent is at least one of nanosilver, nanostiltania, titanium dioxide magnesium oxide, zinc oxide, magnesium hydroxide, basic copper carbonate, copper hydroxide, paraben, jema BP, methylimidazolidone, chloro β propionate, PHMB, PHMG, and quaternary ammonium salts.

4. The soft finishing agent according to claim 1, wherein the emulsifier is at least one of EL-20, EL-40, PEG-200 and PEG-400, preferably four compounded mixed emulsifiers.

5. The soft finish of claim 1, wherein the organic acid is at least one of acetic acid, citric acid, tartaric acid; the solvent is at least one of ethanol, isopropanol and butanol.

6. The soft finish of claim 1, wherein the aloe vera extract is prepared by a process comprising the steps of: drying Aloe, pulverizing, adding organic solvent, ultrasonic extracting, filtering, sequentially extracting the filtrate with ethyl acetate and petroleum ether, concentrating the petroleum ether extractive solution, and drying.

7. The soft finish of claim 6, wherein the aloe vera extract is prepared by a process comprising the steps of: drying and crushing aloe, adding 5-8 times of 75-95% ethanol, performing ultrasonic extraction for 1-2h with ultrasonic power of 100-.

8. A process for the preparation of a soft finish according to any of claims 1 to 7, comprising the steps of:

(1) mixing silicone oil, partial emulsifier, organic acid, antibacterial agent and solvent, and performing ultrasonic treatment to obtain solution 1;

(2) adding polyvinyl alcohol, hydroxymethyl cellulose and the rest of emulsifier into the solution 1, and dissolving with the aid of microwave to obtain a solution 2;

(3) adding Aloe extract and water into solution 2.

9. The method according to claim 8, wherein the step (1) comprises the steps of: mixing silicone oil, partial emulsifier, organic acid, antibacterial agent and solvent, and performing ultrasonic treatment at 35-45 deg.C for 1-2h to obtain solution 1.

10. The method as claimed in claim 8, wherein the temperature of the microwave in step (2) is 20-30 ℃, the power is 100-300w, and the time is 0.5-1 h.

Technical Field

The invention relates to the technical field of softening finishing agents, and particularly relates to a high-safety non-yellowing smooth and elastic softening finishing agent and a preparation method thereof.

Background

Soft finishing (softening) refers to a process of making a textile soft in hand feeling by treating the textile with various chemicals through wet heat and mechanical tension, and the like, wherein the texture structure is deformed and the textile is stiff and rough in hand feeling, and the soft finishing is a processing process for making the textile soft in hand feeling by making up for the defects. Soft finish is a finish that produces a soft touch by reducing the frictional resistance from fiber to fiber or from fiber to skin. The frictional resistance between the fabrics includes frictional resistance, which is the force required to be overcome to initiate movement of the fibers when they are in surface contact with the fibers, and dynamic frictional negative force, which is the force required to be overcome to maintain movement of the fibers after they have moved. The coefficients associated with static and dynamic friction forces are referred to as the static coefficient of friction (μ s) and the dynamic coefficient of friction (μ a), respectively. In the soft finishing process, the static friction coefficient and the dynamic friction coefficient are required to be reduced, and the static friction coefficient is further reduced.

There are two methods of soft finishing, mechanical and chemical.

The mechanical soft finishing is mainly to utilize a mechanical method to repeatedly knead and bend the fabric in a tension state so as to reduce the rigidity of the fabric and enable the fabric to recover to proper softness. A common method of mechanical softening is to pass the fabric through a plurality of tension square bars on a calender and then introduce the fabric into a soft nip formed by two soft rollers of the calender for light calendering. The fabric is bent for many times when passing through the tension rod and then is flattened by the soft rolling point, thereby obtaining smooth and soft hand feeling. The former method is to use rubber blanket mechanical treatment to improve the displacement of the fabric interlacing point, but the pressure and temperature should be lower than the preshrinking finish, and the cloth speed is faster. However, this finishing method is not wash-durable and therefore the softener treatment method is generally preferred.

The chemical method is to reduce the friction coefficient between fibers by the action of a softening agent to obtain a softening effect. Chemical methods are commonly used and sometimes assisted by mechanical methods. The textile is usually soaked in a softening agent solution for a certain time, and then is subjected to liquid removal and drying. Sometimes, a softening agent may be used together with other finishing agents. Some softeners can produce a wash-resistant finish effect after being baked. Softeners are distinguished by the type of ion, which is anionic, cationic, amphoteric and nonionic. Some softening agents have long hydrocarbon chains, and finished products have soft, smooth and plump hand feeling. Some softening agents are organic silicon polymers, and the finished products have smooth handfeel. Sometimes the two are mixed for use, and the finished product has plump and smooth hand feeling. The anionic softening agent is mainly used for cellulose fiber products, and the treated fabric has good water absorption and sewing performance, but the softening effect is poorer than that of cationic treatment. The anionic softener is suitable for various fibers and has the best effect when being used for acrylic products. The treated fabric is soft and smooth but reduces the light fastness of certain dyes. Amphoteric softeners can be applied over a larger pH range but have a lower softening effect. The nonionic softening agent has good compatibility with other preparations and is used for the one-bath treatment with resin. There is no uniform testing method for the softness of textiles, and the evaluation is mainly carried out by hand feeling.

Besides aesthetic aspects such as color patterns, the textile attracts consumers, and tactile hand feeling such as softness, fluffiness and elasticity is also an important aspect. The latter is usually achieved by a soft finish. Silicones have a long history of acting as softeners for softening finishes on fabrics. In recent years, ternary polymerization silicone oil products develop faster, but less softener with smooth and elastic performance is used, and part of softener has influence on the hydrophilicity, fastness, color change and the like of fabrics.

Chinese patent application CN 103726335A discloses a softening agent, which comprises the following components in parts by weight: 40-60 parts of organic silicon, 10-20 parts of Turkey red oil, 16-20 parts of magnesium chloride, 8-12 parts of polyvinyl alcohol, 20-40 parts of polyamide oil, 10-20 parts of glycerol, 4-8 parts of calcium hydrophosphate, 2-4 parts of tartaric acid, 6-8 parts of glacial acetic acid and 2-4 parts of triethanolamine. The softening agent provided by the patent application is convenient to use, can make silk broadcloth, cotton velvet, knitting, poplin and the like have plump handfeel, are soft and smooth, elastic and wear-resistant after clothes are washed and finished, and is convenient to produce and low in price. However, the hydrophilic effect of the patent application needs to be improved, and the product is easy to yellow.

Chinese patent application CN108103785A discloses a cashmere fabric softener and a preparation method thereof, belonging to the field of fabric softeners. The cashmere fabric softener comprises the following components in percentage by mass: 5-25% of zwitterionic amino silicone oil, 1-20% of modified amino silicone oil, 1-15% of quaternary ammonium salt, 4-25% of nonionic emulsifier, 1-5% of wool grease, 0.1-0.5% of organic acid and the balance of deionized water. The components in the cashmere fabric softener disclosed by the patent application are mutually cooperated, the quality stability is good, the cashmere fabric can be endowed with soft, plump and smooth handfeel, and the hydrophilicity and the color of the cashmere fabric are not influenced. However, the hand feeling and the hydrophilic performance of the product disclosed by the patent need to be improved, and the product is easy to yellow.

Therefore, it is necessary to develop a high-safety non-yellowing smooth and elastic soft finishing agent and a preparation method thereof, which can solve the above technical problems.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a high-safety non-yellowing smooth and elastic soft finishing agent which has good hand feeling and hydrophilicity, high stability and no influence on fabric whiteness and a preparation method thereof.

The invention is realized by the following technical scheme:

a soft finishing agent comprises the following components in parts by weight: 15-25 parts of silicone oil, 8-12 parts of polyvinyl alcohol, 1-2 parts of hydroxymethyl cellulose, 1-3 parts of an antibacterial agent, 5-10 parts of an emulsifier, 1-2 parts of an organic acid, 1-2 parts of an aloe extract, 3-8 parts of a solvent and 10-15 parts of water.

Preferably, the silicone oil is at least one of amino silicone oil, terpolymer silicone oil and block silicone oil.

More preferably, the silicone oil is at least one of amino silicone oil and terpolymer silicone oil.

More preferably, the amino silicone oil has an ammonia value of 0.4 to 0.6.

Preferably, the antibacterial agent is at least one of nano silver, nano titanium oxide, titanium dioxide magnesium oxide, zinc oxide, magnesium hydroxide, basic copper carbonate, copper hydroxide, nipagin ester, Gemamo BP, methylimidazolidone, chlorine-containing β propionate, PHMB, PHMG and quaternary ammonium salt.

More preferably, the antibacterial agent is a mixture of nano silver, nano titanium oxide and zinc oxide.

More preferably, the mass ratio of the nano silver to the nano titanium oxide to the zinc oxide is 1-3:4-8: 1.

Preferably, the emulsifier is at least one of EL-20, EL-40, PEG-200 and PEG-400.

More preferably, the emulsifier is a mixed emulsifier compounded by EL-20, EL-40, PEG-200 and PEG-400.

More preferably, the mass ratio of the EL-20, the EL-40, the PEG-200 and the PEG-400 is 1:1-3:2-4: 3-6.

Preferably, the organic acid is at least one of acetic acid, citric acid and tartaric acid.

Preferably, the solvent is at least one of ethanol, isopropanol and butanol.

Preferably, the preparation method of the aloe extract comprises the following steps: drying Aloe, pulverizing, adding organic solvent, ultrasonic extracting, filtering, sequentially extracting the filtrate with ethyl acetate and petroleum ether, concentrating the petroleum ether extractive solution, and drying.

More preferably, the organic solvent is 75-95% ethanol.

More preferably, the organic solvent is dried and pulverized aloe in an amount of 5-8 times the amount of the organic solvent.

More preferably, the time of the ultrasonic extraction is 1-2h, and the ultrasonic power is 100-.

More preferably, the preparation method of the aloe extract comprises the following steps: drying and crushing aloe, adding 5-8 times of 75-95% ethanol, performing ultrasonic extraction for 1-2h with ultrasonic power of 100-.

The invention also relates to a preparation method of the soft finishing agent, which comprises the following steps:

(1) mixing silicone oil, partial emulsifier, organic acid, antibacterial agent and solvent, and performing ultrasonic treatment to obtain solution 1;

(2) adding polyvinyl alcohol, hydroxymethyl cellulose and the rest of emulsifier into the solution 1, and dissolving with the aid of microwave to obtain a solution 2;

(3) adding Aloe extract and water into solution 2.

Preferably, the step (1) includes the steps of: mixing silicone oil, 50-60% of emulsifier, organic acid, antibacterial agent and solvent, and performing ultrasonic treatment at 35-45 deg.C for 1-2h to obtain solution 1.

Preferably, the step (2) includes the steps of: adding the polyvinyl alcohol, the hydroxymethyl cellulose and the rest of the emulsifier into the solution 1, and performing microwave-assisted dissolution, wherein the temperature of the microwave is 20-30 ℃, the power is 100-300w, and the microwave time is 0.5-1h to obtain a solution 2.

More preferably, the preparation method comprises the following steps:

(1) mixing silicone oil, 50-60% of emulsifier, organic acid, antibacterial agent and solvent, and performing ultrasonic treatment at 35-45 deg.C for 1-2 hr to obtain solution 1;

(2) adding polyvinyl alcohol, hydroxymethyl cellulose and the rest of emulsifier into the solution 1, and performing microwave-assisted dissolution at 20-30 ℃ and with the power of 100-;

(3) adding Aloe extract and water into solution 2.

The invention has the beneficial effects that:

according to the invention, the silicone oil, the polyvinyl alcohol and the hydroxymethyl cellulose are used together, the stability of the softening finishing agent is higher, the treated fabric keeps soft and smooth hand feeling, and the fabric has excellent hydrophilicity, smooth and fluffy hand feeling and simultaneously has an antibacterial effect after the three components are used together.

The emulsifying agent and the organic acid added in the invention can further improve the emulsifying effect of the soft finishing agent and the stability of the soft finishing agent, and meanwhile, the organic acid is used as the pH regulator, so that the stability of the soft finishing agent can be further improved, and the hand feeling and the hydrophilicity of the fabric can be further improved. Particularly, when the emulsifier is a mixed emulsifier compounded by EL-20, EL-40, PEG-200 and PEG-400, the soft finishing agent has higher stability, the product has better hand feeling and hydrophilic effect, and the yellowing is not easy to occur.

The aloe extract added in the invention is used in combination with other components, so that the yellowing of the fabric can be prevented, and the influence on the whiteness, color change and fastness of the fabric after the treatment of the softening finishing agent can be avoided. Meanwhile, the fabric has good antibacterial property and hand feeling.

When the antibacterial agent is a mixture of nano silver, nano titanium oxide and zinc oxide, the zinc oxide is in a micron order, the dispersibility is good, the nano silver and the nano titanium oxide are not easy to agglomerate, the agglomeration of the nano silver and the nano titanium oxide is avoided, and the antibacterial effect is further improved.

The formula of the softening finishing agent is suitable for various fabrics, is suitable for cotton, artificial cotton and chemical fiber fabrics, has no side effect, and has higher safety.

According to the preparation method of the soft finishing agent, the silicone oil, part of the emulsifier, the organic acid, the antibacterial agent and the solvent are mixed, then the polyvinyl alcohol, the hydroxymethyl cellulose and the rest of the emulsifier are added, the adding sequence of the raw materials is limited, the emulsifier is added twice, the obtained soft finishing agent system is more stable, the emulsification is more uniform, and all the components can better play a role.

The aloe emulsion can be emulsified uniformly at low temperature, and the aloe extract is finally added while the stability and the uniformity are ensured, so that the aloe emulsion is beneficial to the full play of the effective components in the aloe extract.

Detailed Description

The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.