KR20120132739A - Method for dyeing polyester fabrics including inorganic material - Google Patents

Abstract

PURPOSE: The dyeing method for improving the dyeability of polyester with the inorganic materials is provided to dye the polyester fabric, which has turned into yellow due inorganic materials, without color trouble and be able to dye the light colors. CONSTITUTION: The dyeing method for improving the dyeability of polyester with inorganic materials comprises steps of: refining process of polyester fabric with inorganic materials by eliminating fabric's impurities with 1~5% of scouring agent and 1~3% of deoiling agent; bleaching process of refined polyester fabric by processing with 1~5% of scouring agent, 1~3% of H2O2 stailizer, and 1~3% of sodium hydroxide; and dyeing process of bleached polyester fabric. Dyeing process is maintained at pH 4 condition for 40 minutes. Refining process is treated at 90~100°C for 50~70 minutes. Refining process is done under the condition of 3% of scouring agent and 3% of deoiling agent. Bleaching process is treated at 90~100°C for 50~70 minutes.

Description

Dyeing method for improving the dyeing property of polyester fabrics mixed with inorganics {Method for dyeing polyester fabrics including inorganic material}

The present invention relates to a dyeing method for improving the dyeability of the polyester fabric mixed with inorganic materials.

Polyester fiber is the most widely used fiber among synthetic fibers. In general, the inorganic fiber is mixed and opaque in order to reduce the gloss of polyester fiber and to express more natural gloss than general synthetic fiber.

The matting agent of polyester typically used to reduce the gloss can reduce the gloss of the polyester even when only a small amount of TiO ₂ is added. In addition to this, when inorganic particles having different functionalities instead of TiO ₂ are mixed and spun with polyester fibers, functional yarns having functionality in the yarns themselves are produced. Inorganic particles may be added to the polyester fiber in a small amount to increase the crystallization rate of the polymer to affect the physical properties, the dyeing properties change due to these properties change.

As the crystallization rate of the polymer increases due to the addition of the functional inorganic material, the degree of crystallinity decreases during dyeing due to the relatively reduced amorphous region. The decrease in dyeing rate reduces the dyeability of the fabric and the color of the fabric in the final product does not meet the needs of the consumer, resulting in an increase in the defective rate. In order to overcome this problem, there is a need for a pretreatment method capable of improving the dyeability of a polyester fabric to which a functional inorganic material is added.

An object of the present invention for solving such a conventional problem is to provide a dyeing method for improving the dyeability of the inorganic fabric-added polyester fabric.

The present invention for achieving the above object is a refining process of removing the impurities of the fabric by treating the polyester fabric mixed with an inorganic material in 1 ~ 5% refiner, 1 ~ 5% condition of the deoiling agent;

A bleaching process of bleaching the polyester fabric, which has undergone the refining process, by treating 1-5% of fruit trees, 1-3% of fruit stabilizers, and 1-3% of sodium hydroxide;

The dyeing process of dyeing the bleached polyester fabric; provides a dyeing method for improving the dyeability of the polyester fabric mixed with the inorganic material characterized in that it comprises a.

In particular, the refining process is preferably treated for 50 to 70 minutes at 90 ~ 100 ℃, the bleaching process is preferably treated for 50 to 70 minutes at 90 ~ 100 ℃.

Hereinafter, a dyeing method for improving the dyeing property of the polyester fabric mixed with the inorganic material of the present invention will be described in detail.

The dyeing method for improving the dyeability of the polyester fabric mixed with the inorganic material of the present invention of the present invention comprises a refining process, a bleaching process and a dyeing process.

First, the refining process is a process of removing impurities of the fabric by treating the polyester fabric mixed with inorganic materials under the condition of 1 ~ 5% refiner, 1 ~ 5% degreaser.

Refining agents can use anionic refining agents, nonionic refining agents, etc. for each ionic type, there is a problem that there is no refining effect when used less than 1%, there is a problem to reduce the appearance of the fabric by agglomeration when used more than 5% .

In addition, the deoiling agent may use an ionic surfactant, an enzyme, or the like, and if less than 1% is used, there is a problem in that the deoiling effect is remarkably lowered.

In particular, the refining process is preferably performed under the conditions of 3% refiner and 3% degreaser for uniform dyeing. Further, the refining process is preferably treated for 50 to 70 minutes at 90 ~ 100 ℃ for uniform dyeing.

Next, the bleaching process is a process of bleaching the polyester fabric subjected to the refining process by treating 1-5% of fruit trees, 1-3% of fruit stabilizers, and 1-3% of sodium hydroxide.

When the fruit tree is used in less than 1%, there is a problem that the collar becomes turbid, and when used in more than 5%, there is a problem causing fiber damage.

And the over-water stabilizer has a problem that the effect is insufficient when used in less than 1%, there is a problem causing fiber damage when used in excess of 5%.

If the sodium hydroxide is used in less than 1% there is a problem that the dyeability is lowered, when used in excess of 3% there is a problem causing disproportionate.

The dyeing process is a process of dyeing the bleached polyester fabric, which can be dyed without color trouble, and is preferably maintained at pH 4 for 40 minutes in order to improve the dyeability of the light-based series.

The dyeing method for improving the dyeability of the polyester fabric mixed with the inorganic material of the present invention is to enable the dyeing of the polyester fabric changed yellow by the inorganic material without color trouble, the effect of enabling a light-based dyeing have.

Hereinafter, a dyeing method for improving the dyeing property of the polyester fabric mixed with the inorganic material of the present invention will be described with reference to the following Examples, the scope of the present invention is not limited to the following examples.

[Examples 1-9]

Refining and bleaching experiments were performed under the conditions shown in Table 1 using a polyester fabric mixed with TiO ₂ .

As a result, as shown in Table 1, the difference from the standard sample was lowered according to the content of the refiner, the degreaser and the fruit or bleach for bleaching. The best results were obtained at the 1% content.

Pretreatment bleaching
Temperature
time Standard sample
Difference value ( △ E) Refining agent Dehumidifier fruit tree Sodium hydroxide Example 1
One% One% 0.5%



95



1 hours 2.47 Example 2 3% One% One% 2.01 Example 3 5% 2% 2.11 Example 4
3%
One% 0.5% 1.15 Example 5 3% 3% One% 1.02 Example 6 5% 2% 1.21 Example 7
5%
One% 0.5% 1.89 Example 8 3% 5% One% 1.41 Example 9 5% 2% 1.32

[Examples 10-18]

It was dyed under the conditions shown in Table 2 to the polyester fabric which was subjected to the pretreatment process under the conditions of Example 5.

As a result, as shown in Table 2, the difference from the standard sample was excellent at pH 4, holding time 40 minutes (130 ℃) process conditions.

dyeing Standard sample
Difference value ( △ E) pH 130 ℃ holding time Example 10
4
30min 0.85 Example 11 40min 0.31 Example 12 50min 0.64 Example 13
5
30min 1.14 Example 14 40min 1.01 Example 15 50min 1.24 Example 16
6
30min 2.05 Example 17 40min 2.11 Example 18 50min 2.39

Claims (5)

Refining process of removing impurities from the fabric by treating the polyester fabric mixed with the inorganic material under 1 to 5% of a refining agent and 1 to 5% of a deoiling agent;
A bleaching process of bleaching the polyester fabric, which has undergone the refining process, by treating 1-5% of fruit trees, 1-3% of fruit stabilizers, and 1-3% of sodium hydroxide;
A dyeing process for dyeing the bleached polyester fabric; a dyeing method for improving the dyeability of the inorganic fabric mixed polyester fabric, characterized in that comprises a.
The method of claim 1,
The dyeing process is a dyeing method for improving the dyeability of the polyester fabric mixed with the inorganic material, characterized in that maintained for 40 minutes at the condition of pH 4.
The method of claim 1,
The refining process is a dyeing method for improving the dyeing property of the polyester fabric mixed with the inorganic material, characterized in that for 50 to 70 minutes treatment at 90 ~ 100 ℃.
The method of claim 1,
The refining process is a dyeing method for improving the dyeability of the polyester fabric mixed with the inorganic material, characterized in that the refining agent 3%, deoiling agent 3% conditions.
The method of claim 1,
The bleaching process is a dyeing method for improving the dyeing property of the polyester fabric mixed with the inorganic material, characterized in that for 50 to 70 minutes treatment at 90 ~ 100 ℃.