CN100567621C - Aminosiloxane Wool Anti-felting Finishing Agent and Its Preparation and Application - Google Patents

Abstract

The present invention relates to a kind of aminosiloxane wool felt-proofing finishing agent and preparation thereof and application, this finishing agent is to be prepared by amino silicone, organic solvent and water, and their mol ratio is respectively 1: 0～10: 1～100; Preparation is that the mixture with amino silicone or itself and organic solvent adds in the entry, stirs to room temperature; Can be used for the Wool fabric anti-felting arrangement.The present invention is with low cost, and preparation is simple, environmental protection and energy saving, and finishing agent gives fabric good anti-felting performance after handling wool fabric.

Description

Aminosiloxane Wool Anti-felting Finishing Agent and Its Preparation and Application

technical field

The invention belongs to the field of anti-felting finishing, and in particular relates to an aminosiloxane wool anti-felting finishing agent, a preparation method and application thereof.

Background technique

Sol-gel method (Sol-Gel method) is an emerging method in the wet chemical method of preparing materials. This method is controlled at the initial stage of material preparation, so that the uniformity can reach submicron and nanometer levels, the product has uniformity and high purity, and the processing temperature is lower than the traditional method. Since the 1980s, the sol-gel method has been widely used in fiber materials such as special glass, inorganic fibers and films, functional ceramic materials and oxide coatings, which are difficult to prepare by various traditional methods, including nanocomposites. It has become one of the hotspots in material science research.

Over the years, wool clothing has been developing in the direction of leisure, popularization, and lightness. In summer, wool fabrics that are worn close to the body and require frequent washing are also becoming more and more popular. In order to make wool garments meet the standards of easy maintenance, machine washability and good appearance retention, it is necessary to perform anti-felting finishing on wool fabrics.

At present, the most commonly used anti-felting finishing method in the industry is still the chlorination method or the chlorination/Hercosett method (Hercosett), both of which will produce adsorbable organic halides (AOX) which are harmful to the environment . Therefore, it is imperative to develop new wool anti-felting technology.

The sol-gel technology produces nano-sized sol particles through the hydrolysis and polycondensation of metal or non-metal alkoxides, which are applied to the fabric by dipping, padding or spraying; then the sol is gelled by heating and further Cross-linking occurs to form a continuous three-dimensional network structure, which covers the surface of wool scales in the form of a transparent porous film, thereby endowing wool fibers with durable anti-felting properties.

Contents of the invention

The object of the present invention is to provide an aminosiloxane wool anti-felting finishing agent, its preparation method and its application. The present invention is based on sol-gel technology, and dialkoxysilane or trialkoxysilane with amino functional groups and water are the main raw materials to prepare the wool anti-felting finishing agent of nano-scale sol, and heat treatment after finishing on the fabric, It forms a transparent porous film on the surface of wool fiber, endows it with durable anti-felting performance, and is used for anti-felting finishing of wool fabrics.

The aminosiloxane wool anti-felting finishing agent of the present invention is prepared from aminosiloxane, an organic solvent and water, and their molar ratios are 1:0-10:1-100 respectively.

The aminosiloxane is a dialkoxysilane or trialkoxysilane with an amino functional group, such as (β-aminoethyl)-γ-aminopropyl trimethoxysilane, (β-aminoethyl) -γ-aminopropyltriethoxysilane, (β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, (β-aminoethyl)-γ-aminopropylmethyldiethyl Oxysilane, γ-Aminopropyltrimethoxysilane, γ-Aminopropyltriethoxysilane, γ-Aminopropylmethyldimethoxysilane, γ-Aminopropylmethyldiethoxysilane , Anilinomethyltrimethoxysilane and Anilinomethyltriethoxysilane, etc.;

The organic solvent is an organic solvent miscible with water, such as methanol, ethanol, ethylene glycol, acetone, acetonitrile and the like.

The preparation method of the aminosiloxane wool anti-felting finishing agent of the present invention is to add the aminosiloxane or its mixture with an organic solvent into water, and stir evenly to room temperature.

The aminosiloxane wool anti-felting finishing agent of the present invention can be used for wool fabric anti-felting finishing.

The wool fabric is wool or interwoven or blended fabric with any other textile fibers such as natural, artificial and synthetic fibers;

The application method is to immerse, pad or spray the wool fabric in the aminosiloxane wool anti-felting finishing agent, with a liquid retention rate of 70-80%, and pre-dry it in a dryer at 60-100°C for 1-3 minutes , and then bake at 120-180°C for 1-3 minutes.

The present invention uses aminosiloxane as a precursor to prepare wool anti-felting finishing agent, which can form multiple bonds with amino acid residues in wool fibers, and the combination is stable. It only needs common equipment to treat wool fabrics to achieve excellent performance. Anti-felting indicator.

Beneficial effects of the present invention:

(1) Aminosiloxane wool anti-felting finishing agent has low cost, simple preparation, environmental protection and energy saving;

(2) The finishing agent itself has a strong penetrating effect on the fiber. After heat treatment, it condenses to form a three-dimensional network structure and forms a film on the surface of the fiber, thus endowing the fabric with excellent anti-felting performance;

(3) Use amino-containing siloxane as a precursor to enhance the binding ability of finishing agent and wool fiber, improve the durability of finishing, and further enhance the anti-felting ability.

Description of drawings

Fig. 1 is the particle size schematic diagram of the aminosiloxane wool anti-felting finishing agent of embodiment 1;

Figure 2 is a schematic diagram of the particle size of the aminosiloxane wool anti-felting finishing agent of Example 2.

Detailed ways

Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Example 1

Finishing agent formula

In a water bath, add (β-aminoethyl)-aminopropyltrimethoxysilane with a molar ratio of 1:50 into water, stir evenly to room temperature, and use the Nano-ZS nanometer particle size and potential analyzer of Malvern Instruments, UK to test It shows that the particles in the finishing solution are distributed between 1-10nm, and the results are shown in Figure 1.

Example 2

Finishing agent formula

According to the molar ratio of 1:60, (β-aminoethyl)-aminopropyltrimethoxysilane was added to water in a water bath, stirred evenly to room temperature, and analyzed by using the Nano-ZS nanometer particle size and potential analyzer of Malvern Instrument Company, UK. The test shows that the particles in the finishing solution are distributed between 1-10nm, and the results are shown in Figure 2.

Example 3

Using the finishing agent of Example 1, the anti-felting finishing steps of 100% (211g/m ² ) natural color gabardine are as follows:

Gabardine is dipped and rolled twice in aminosiloxane wool anti-felting agent, with a liquid retention rate of 70-80%, pre-baked in a dryer at 80°C for 3 minutes, and then baked at 180°C for 3 minutes.

According to the same method, no finishing agent was used, and the fabric was directly padded with water to prepare a control sample.

Referring to the I.W.S.TM 31 test standard, the Wascator FQM71 CLS washing machine is used to wash with the 7A+3×5A program, and the area felt shrinkage of the sample is measured and calculated. Use "ISO 13934-1 Tensile properties of fabrics. Determination of breaking strength and elongation at break by strip method" to test the breaking strength of fabrics.

After the above finishing, the shrinkage of the wool fabric is shown in Table 1. The anti-felting performance of the finished sample is greatly improved, reaching the machine washable standard of the International Wool Bureau (radial felting shrinkage ≤ 3% and weft felting shrinkage ≤ 3%). The breaking strength of the fabric was not much different from that before finishing.

Table 1 Performance table of wool fabric after finishing

Example 4

Using the finishing agent of Example 2, the anti-felting finishing steps of 100% (211g/m ² ) natural color gabardine are as follows:

Gabardine is dipped and rolled twice in aminosiloxane wool anti-felting agent, with a liquid retention rate of 70-80%, pre-baked in a dryer at 80°C for 3 minutes, and then baked at 160°C for 3 minutes.

According to the same method, no finishing agent was used, and the fabric was directly padded with water to prepare a control sample.

Referring to the I.W.S.TM 31 test standard, the Wascator FQM71 CLS washing machine is used to wash with the 7A+3×5A program, and the area felt shrinkage of the sample is measured and calculated. After the above finishing, the felt shrinkage of the wool fabric is shown in Table 2.

Table 2 Felt shrinkage of wool fabric

Claims (5)

1. aminosiloxane wool felt-proofing finishing agent, it is characterized in that: this finishing agent is to be prepared by amino silicone, organic solvent and water, and their mol ratio is respectively 1: 0～10: 1～100;

Described amino silicone is (β-aminoethyl)-γ-An Bingjisanjiayangjiguiwan, (β-aminoethyl)-gamma-aminopropyl-triethoxy-silane, (β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane, (β-aminoethyl)-γ-aminopropyl methyldiethoxysilane, γ-An Bingjisanjiayangjiguiwan, gamma-aminopropyl-triethoxy-silane, γ-aminopropyl methyl dimethoxysilane, γ-aminopropyl methyldiethoxysilane, phenylamino MTMS or phenylamino MTES;

Described organic solvent is methyl alcohol, ethanol, ethylene glycol, acetone or acetonitrile.

2. the preparation method of aminosiloxane wool felt-proofing finishing agent according to claim 1 is characterized in that: the mixture of amino silicone or itself and organic solvent is added in the entry, stir to room temperature.

3. aminosiloxane wool felt-proofing finishing agent according to claim 1 is used for the Wool fabric anti-felting arrangement.

4. application according to claim 3 is characterized in that: described wool fabric is the interweaving of wool or wool and natural, artificial and synthetic fiber, BLENDED FABRIC.

5. application according to claim 3, it is characterized in that: described application is that wool fabric is flooded in aminosiloxane wool felt-proofing finishing agent, pads or sprays, liquid carrying rate 70-80%, in the dryer 60-100 ℃ preliminary drying 1-3 minute, baked 1-3 minute at 120-180 ℃ then.

Images