CN102080023B - Efficient de-waxing cleaning solution for wax printed fabrics - Google Patents

Abstract

The invention discloses efficient de-waxing cleaning solution for wax printed fabrics, which is formed by fully stirring chelating dispersant, sodium gluconate, C12-14 secondary alcohol polyoxyethylene ether, secondary alkyl sodium sulfonate (SAS), polyvinyl pyrrolidone, N-vinyl pyrrolidone, alkali-resistant defoaming agent, water and the like. The composition has very good de-waxing effect on the wax printed fabrics, can improve the whiteness of the wax printed fabrics, has good boiling performance on background color dyes, and can improve the brightness and fastness of the background color of the dyes.

Description

High-efficiency wax-removing cleaning solution for wax-printed fabrics

technical field

The invention relates to a high-efficiency wax-removing cleaning liquid, in particular to a high-efficiency wax-removing cleaning liquid for wax-printed fabrics.

Background technique

The production process of wax printed cloth is complicated and the technology content is high. The traditional anti-dyeing printing process is used to print impermeable wax (the main component is rosin) on the surface of pure cotton white gray cloth according to the design pattern, and then dyed, waxed and dyed. It is processed by more than a dozen technological processes such as wax pattern, wax removal, and overprinting color. The selection of wax raw materials and the cooking and deployment of wax liquid are the key to ensure the quality of wax printed cloth. There are many kinds of waxes, such as rosin, paraffin wax, Sichuan wax, etc. At present, rosin is generally used by various manufacturers. Rosin is processed and refined from natural rosin, which is a light yellow block with a softening point of 70-90°C and a melting point of 100-105°C. It has good film-forming properties, but it is not easy to wash off from the fabric.

At present, domestic wax printing production mostly adopts vertical double-sided rotary screen wax printing machines. First, the same wax pattern is printed on the front and back of the fabric, and then the wax pattern is cooled and formed into a film by spraying cold water to obtain excellent mechanical properties. Anti-stain ability. Then use indigo, Indian blue IBN and other vat dyes to pad-dye, so that the wax-printed fabric can obtain the same translucent double-sided printing effect on the front and back. Subsequently, the wax-printed fabric enters the process of wax rejection. Since the wax pattern gaps produced by wax rejection have no anti-dyeing effect, they can be colored in the subsequent wax pattern dyeing process. After vat dye pad dyeing and wax pattern coloring are completed, the residual wax should be removed from the fabric in time for subsequent processing. At present, manufacturers generally use cold water rope to wash off wax. After the wax is removed, there is still a small amount of wax that has not been completely removed, and the whiteness of the fabric where the wax is printed cannot meet the requirements. If subsequent printing is performed, the pattern will become dark and of poor quality. At present, most printing and dyeing enterprises only use hot lye to further clean and remove wax from wax printed cloth.

Contents of the invention

The purpose of the present invention is to provide a kind of high-efficiency wax-removing cleaning solution for wax printing fabrics, which can be added in the process of hot alkali cleaning, can obviously improve the effect of wax removal in the process of hot alkali cleaning, improve the whiteness of the fabric at the wax printing place after alkali washing, and at the same time It has the function of soaping the dyed ground color vat dyes, improving its shade and color brightness, and improving its fastness performance.

The basic action principle of the high-efficiency wax removal cleaning solution of the present invention includes:

1. It has a certain chelating and softening effect, softening the washing water and improving the washing efficiency;

2. It has a strong emulsifying and cleaning ability for rosin and saponified rosin, and it is easy to form micelles in the solution, so that the rosin wax can be washed from the fabric;

3. It has anti-staining ability and prevents the rosin in the emulsion from adhering to the fabric again;

4. With certain alkali resistance, it can be used with hot lye at the same time, and has strong penetration, emulsification, deoiling and synergistic properties;

5. It has a good cleaning effect on vat dyes such as indigo, effectively removes floating colors, adjusts the state of dyes in the fiber, and improves the fastness of dyes to friction and washing.

The high-efficiency wax-removing cleaning solution for wax-printed fabrics of the present invention contains various components, which are respectively described as follows. The chelating dispersant is a powdery polycarboxylate with a molecular weight of 30,000-50,000 and an effective substance content of not less than 95%, accounting for 4.0-10.0% of the total weight, preferably 6.0-9.0%. Sodium gluconate has the effect of synergistically chelating metal ions, and the percentage of the total weight is 2.0-5.0%. C12-14 secondary alcohol polyoxyethylene ether is an environmentally friendly and efficient nonionic surfactant, wherein the average value of polyoxyethylene is 9, and the percentage of this component in the total weight is 10.0-20.0%, preferably 15.0-18.0%. Sodium secondary alkyl sulfonate SAS is an anionic surfactant, which has excellent penetration and degreasing ability under alkaline conditions, and the percentage of the total weight is 3.0-6.0%. Polyvinylpyrrolidone is a high-molecular polymer with excellent anti-contamination properties. The suitable molecular weight is between 7,000-54,000, preferably 28,000-34,000; the percentage of polyvinylpyrrolidone in the total weight is 5.0-15.0%, preferably 10.0- 14.0%. N-vinylpyrrolidone can synergize with polyvinylpyrrolidone to improve stability and effect, and the percentage of the total weight is 3.0-6.0%. The alkali-resistant defoamer is a common organosilicon defoamer, which can prevent the above composition from producing too much foam during preparation and use, and its percentage of the total weight is 0.1%. The above components and percentage ranges are determined based on a large number of experiments, which can significantly improve the quality of the treated wax print.

The invention has the advantages that it can significantly improve the wax removal effect of the wax printed cloth in the alkali washing process, so that the fabric at the wax printing place can obtain a higher whiteness, and at the same time, it can also have a good soaping effect on the ground color dye, improving Various fastness indicators of ground color.

Detailed ways

The present invention is further illustrated below by examples and comparative examples.

Example 1

Prepare a high-efficiency wax removal cleaning solution with the components specified in Table 1 below. Weigh 0.3 parts of the prepared high-efficiency wax removal cleaning solution and dissolve it in 92.7 parts of 20g/L lye, add 5 parts of wax calico, heat up to 98 ° C for 10 minutes, cool down, wash with warm water, wash with cold water, and dry. Table 2 lists the test results for fabric whiteness, rubbing and soaping fastness.

Example 2

Prepare a high-efficiency wax removal cleaning solution with the content of each component specified in Table 1 below, and use the preferred range of content for each component. Weigh 0.3 parts of the prepared high-efficiency wax removal cleaning solution and dissolve it in 92.7 parts of 20g/L lye, add 5 parts of wax calico, heat up to 98 ° C for 10 minutes, cool down, wash with warm water, wash with cold water, and dry. Table 2 lists the test results for fabric whiteness, rubbing and soaping fastness.

comparative example

The wax printed cloth is treated with the traditional wax removal method, and only 100 parts of 20g/L lye is used to treat 5 parts of the wax printed cloth, the temperature is raised to 98 ° C for 10 minutes, the temperature is lowered, washed with warm water, washed with cold water, and dried. The test results are shown in Table 2.

Table 1 The content of each component of the embodiment

Table 2 Test results of wax print cloth after treatment

Claims (7)

1. wax seal fabric is with moving back a wax scavenging solution, and said composition is composed of the following components by weight percentage:

Each weight percentages of components sum is absolutely.

2. move back wax scavenging solution according to according to claim 1, wherein chelated dispersants is molecular weight is 30,000-50, the polycarboxylate of 000.

3. move back wax scavenging solution according to according to claim 1, wherein the content of chelated dispersants is 6.0-9.0%.

4. move back wax scavenging solution according to according to claim 1, wherein the content of C12-14 secondary alcohol Soxylat A 25-7 is 15.0-18.0%.

5. move back wax scavenging solution according to according to claim 1, wherein the molecular weight of polyvinylpyrrolidone is 7,000-54,000.

6. move back wax scavenging solution according to according to claim 1, wherein polyvinyl pyrrolidone content is 10.0-14.0%.

7. any one described in claim 1-6 is moved back wax scavenging solution and is moved back wax process for the alkali cleaning of wax seal fabric.