CN100567623C - An organic-inorganic composite self-cleaning finishing agent and its application - Google Patents

Abstract

The invention relates to an organic-inorganic composite self-cleaning finishing agent and its application method on fiber products. The organic-inorganic composite self-cleaning finishing agent contains 40% of component A and 60% of component B (percentage by weight). The application methods on the products include: (1) freshly prepare components A and B organic-inorganic composite self-cleaning finishing agents; (2) padding working liquid and fiber products, drying, baking; (3) water repellency, repellency The self-cleaning properties of fabrics were characterized by oiliness and stain-removal properties. The organic-inorganic composite self-cleaning finishing agent of the present invention has good stability and repeatability. In the application of fiber products, it has good waterproof, anti-fouling and easy decontamination properties, and can meet the requirements of developing various fiber high-grade self-cleaning ribs Knitwear needs.

Description

An organic-inorganic composite self-cleaning finishing agent and its application

technical field

The invention belongs to a self-cleaning finishing agent for fiber products, in particular to an organic-inorganic composite self-cleaning finishing agent and its application.

Background technique

Dirt on fabrics includes water-soluble dirt, oily dirt, and dust. Water-soluble dirt and oily dirt are stained due to the contact between clothing and human body, or contamination caused by external grease (food oil or machine oil, etc.); dust is mainly generated by electrostatic action. Antifouling and easy decontamination are two different concepts, and there is an intrinsic connection between the two. Textiles will be stained gradually during use. Antifouling means that clothing textiles will not be stained by water-based dirt and oily dirt during use, and will not absorb dry dust or particles on fibers or fibers due to static electricity. fabric surface. Finishes that impart stain-repellent properties to textiles are known as stain-repellent finishes.

Easy decontamination means that once the fabric is stained, the dirt is easy to wash under normal washing conditions, and the fabric will not absorb the dirt in the washing solution and turn gray in the washing solution (that is, the dirt washed from the fabric, Transferred to other parts of the fabric by the washing liquid, this phenomenon is called wet restaining, and wet restaining has an accumulation effect in repeated washing). The finishing that makes textiles have easy stain-removing properties is called stain-removing finishing.

Textiles with both antifouling and easy decontamination functions have the function of self-cleaning, that is, they are not easy to be stained, and if they are stained with oil, they can be washed with water without detergent. The corresponding finishing agent is called self-cleaning finishing agent. For clothing fabrics, especially underwear, shirts, etc., frequent washing will seriously damage the appearance of the fabric. Applying finishing technology to give it a self-cleaning function can solve this problem and meet the requirements of consumers. However, it is more difficult to unify the dual functions of antifouling and easy decontamination on the same finishing agent, which has good stability.

Nano inorganic self-cleaning finishing agent can make clothing encounter dirt, only a small part of the stain can be adsorbed on the fabric, and after a certain photocatalytic self-cleaning effect, this small part of stain can be completely removed. In addition, harmful bacteria inside the fabric can also be decomposed, keeping it clean. However, it is technically difficult to disperse and apply high-concentration nano-inorganic finishing agents. At the same time, the anti-fouling property, especially the dust-proof property, has a relatively large timeliness, that is, its self-cleaning function will decrease with the prolongation of taking time, but Adding organic finishing agents to the cleaning system can make up for this problem. Therefore, combining organic and inorganic composite self-cleaning finishing agents has important application value.

Contents of the invention

The object of the present invention is to provide the composition and application of an organic-inorganic composite self-cleaning finishing agent. The combined cleaning finishing agent has good stability and strong functions, and is convenient to meet the needs of developing high-grade self-cleaning textiles.

The composition and weight percent content of the organic-inorganic composite self-cleaning finishing agent of the present invention include:

Component A 40%

Component B 60%

The component A is composed of TiO ₂ (particle size is 20-75nm): ethanol: water: Tween 80 (condensate of sorbitan stearic acid monoester and ethylene oxide) in a weight ratio of 1:5 : 20: 1.5 preparation; preparation process: first TiO ₂ was stirred (2000r/min) and dissolved in ethanol, then Tween 80 was stirred (2000r/min) into it, and then stirred (5000r/min) for emulsification for 60min.

The component B is mainly one of fluorocarbon resin Oleophobol ZSR, PM490, Baygard SOC, Nuva SRC, Baygard SPT, HPC-1 or UNIDYNE TG991.

The application of a kind of organic-inorganic composite self-cleaning finishing agent of the present invention on fiber products comprises the following steps:

(1) Freshly prepare components A and B organic-inorganic composite self-cleaning finishing agent;

(2) padding working liquid and fiber products, drying and baking;

(3) The self-cleaning performance of the fabric is characterized by water repellency, oil repellency and easy decontamination.

The padding working fluid refers to an organic-inorganic composite self-cleaning finishing agent containing 60-80 g/L, and a pH value of pH 4-10;

Described fiber is cellulose fiber (comprising cotton, linen, viscose, modal, tencel, copper amine fiber, acetate fiber, bamboo fiber etc.), protein fiber (comprising wool, cashmere, silk, spun silk etc. ), pure fibers or fibers blended with various fibers.

The fiber product is woven or knitted.

The said surplus rate is 70%;

The baking refers to baking at 150-170° C. for 1-2 minutes.

Beneficial effects of the present invention:

(1) The organic-inorganic composite self-cleaning finishing agent has good stability and repeatability;

(2) In the application of fiber products, it has good waterproof, antifouling and easy decontamination properties;

(3) It meets the needs of developing high-grade self-cleaning rib knitwear of various fibers.

Beneficial effect

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 fabric: milk fiber: cotton: tencel (ratio 10:50:40) blended fiber shirting fabric

Finishing process: padding working liquid→drying→baking with setting machine

Working solution prescription:

Organic-inorganic composite self-cleaning finishing agent 60g/L

pH 7

Surplus rate 70%

Styling temperature×time 170℃×40s

Table 1 Self-cleaning performance

Example 2

Finishing fabric: cotton: modal: milk fiber (ratio 60:30:10) jersey

Finishing process: padding working liquid→drying→baking with setting machine

Working solution prescription:

Organic-inorganic composite self-cleaning finishing agent 80g/L

pH 9.5

Surplus rate 70%

Styling temperature×time 160℃×90s

Table 3 Self-cleaning performance

Example 3

Finishing fabric: cashmere: wool: milk fiber (ratio 10:70:20) knitted fabric

Finishing process: padding working liquid→drying→baking with setting machine

Working solution prescription:

Organic-inorganic composite self-cleaning finishing agent 80g/L

pH4

Surplus rate 70%

Styling temperature×time 155℃×120s

Table 3 Self-cleaning performance

Claims (7)

1. organic and inorganic composite self-cleaning finishing agent, it is characterized in that: this composite self-cleaning finishing agent comprises:

Percentage by weight 40% component A and 60% B component, wherein component A is by particle diameter 20～75nmTiO ₂: ethanol: water: Tween 80 was by weight 1: 5: 20: 1.5 preparations, B component are a kind of among fluorocarbon resin Oleophobol ZSR, PM490, BaygardSOC, Nuva SRC, Baygard SPT, HPC-1 or the UNIDYNE TG991.

2. a kind of organic and inorganic composite self-cleaning finishing agent according to claim 1 is characterized in that: described Tween 80 is the condensation product of sorbitan monooleate and oxirane.

3. a kind of organic and inorganic composite self-cleaning finishing agent according to claim 1 is characterized in that: process for preparation: earlier with TiO ₂Stir 2000r/min and be dissolved in the ethanol, again Tween 80 is stirred 2000r/min and add wherein, stir 5000r/min emulsification 60min then.

4. the application of a kind of organic and inorganic composite self-cleaning finishing agent according to claim 1 on fibre is characterized in that: applying step comprises,

(1) fresh formulation components A and B organic and inorganic composite self-cleaning finishing agent, wherein component A is by particle diameter 20～75nmTiO ₂: ethanol: water: Tween 80 was by weight 1: 5: 20: 1.5 preparations, B component are a kind of among fluorocarbon resin OleophobolZSR, PM490, Baygard SOC, Nuva SRC, Baygard SPT, HPC-1 or the UNIDYNE TG991;

(2) pad working solution and fibre, oven dry bakes;

(3) characterize self-cleaning performance of fabric with WATER REPELLENCY, oil repellent and easy soil release characteristics.

5. the application of a kind of organic and inorganic composite self-cleaning finishing agent according to claim 4 on fibre is characterized in that: the described working solution that pads is to contain organic inorganic composite self-cleaning finishing agent 60～80g/L, and the pH value is 4～10.

6. the application of a kind of organic and inorganic composite self-cleaning finishing agent according to claim 4 on fibre is characterized in that: described fibre is the woven or the knitted fabric of cellulose fibre, protein fibre, pure fiber or multiple fiber blend fiber.

7. the application of a kind of organic and inorganic composite self-cleaning finishing agent according to claim 4 on fibre is characterized in that: described baking is at 150～170 ℃, bakes 1-2 minute.