CN1317339C - Combined disperse dye for printing and dyeing polyester material - Google Patents

Abstract

The invention discloses a combined disperse dye for printing and dyeing polyester materials, which comprises the following components by weight percentage: 5.70-38.30% of a dye monomer A as shown in formula (1), 3.62-17.10% of a dye monomer B as shown in formula (2), 1.00-26.30% of a dye monomer C as shown in formula (3), and the balance is an auxiliary agent. The combined disperse dye of the invention meets environmental protection and ecological requirements, is used for printing and dyeing polyester materials, and has excellent properties such as high sublimation fastness, washing fastness, rubbing fastness, and good compatibility.

Description

A combined disperse dye for printing and dyeing polyester materials

technical field

The invention relates to a disperse dye, which is a combined disperse dye suitable for printing and dyeing polyester materials.

Background technique

In the printing and dyeing of polyester materials, most of the black disperse dyes used are color-blocking dyes, and their sublimation fastness, washing fastness, rubbing fastness, and improvement rate during hot-melt dyeing cannot be taken into account with each other. Moreover, some dyes currently used are in the state of being discontinued or out of use because they do not meet environmental protection and ecological requirements. Therefore, it is urgent to find a combined disperse dye that meets environmental protection and ecological requirements and has excellent dyeing performance.

Contents of the invention

The invention provides a combined disperse dye for printing and dyeing polyester materials, which solves the environmental protection problem and can have better compatibility, washing fastness, rubbing fastness and sublimation fastness.

A combined disperse dye for printing and dyeing polyester materials, the weight percentage is composed of:

5.70～38.30% of the dye monomer A shown in formula (1)

3.62～17.10% dye monomer B shown in formula (2)

where X = Cl, Br

1.00～26.30% of the dye monomer C shown in formula (3)

The balance is additives.

A combined disperse dye for printing and dyeing polyester materials, the preferred weight percent consists of:

7.20-36.80% of dye monomer A shown in formula (1), 5.10-15.60% of dye monomer B shown in formula (2), 2.34-24.80% of dyes shown in formula (3) Monomer C, the balance is additives.

The auxiliaries described in the present invention are common dispersants, diffusing agents and surfactants thereof when compounding disperse dyes, preferably including one of the following or a combination thereof: naphthalenesulfonic acid formaldehyde condensate, lignosulfonate , Alkyl naphthalene sulfonic acid formaldehyde condensate. Such as methylnaphthalenesulfonic acid formaldehyde condensate (dispersant MF), naphthalenesulfonic acid formaldehyde condensate (diffusion agent NNO), benzylnaphthalenesulfonic acid formaldehyde condensate (diffusion agent CNF), sodium lignosulfonate, etc.

Composite environment-friendly disperse dyes of the present invention can be prepared by the following methods:

Combine the dye monomers A, B, and C in the above weight ratio with additives and water, grind and disperse them with a sand mill, and then spray dry them. The above-mentioned dye monomer A, dye monomer B, and dye monomer C can all be commercially available products.

The dye monomers A, B, and C described in the present invention all meet the environmental protection and ecological requirements of the European Community Oeko-Tex Standard 100, and are green dyes that meet the environmental protection and ecological requirements of the Oeko-Tex Standard 100, and the three dye monomers The middle components B and C have similar structures, and the color is full after combination. It is used for printing and dyeing of polyester materials, and has excellent properties such as high sublimation fastness, washing fastness, rubbing fastness and good compatibility.

Detailed ways

The present invention will be further described below in conjunction with examples and comparative examples, but the protection scope of the present invention is not limited thereto.

Examples 1-8

According to the data shown in Table 1, dye monomer A, dye monomer B, dye monomer C and dispersant methyl naphthalene sulfonic acid formaldehyde condensate (MF), diffusing agent benzyl naphthalene sulfonic acid formaldehyde condensate (CNF) After the diffusing agent naphthalenesulfonate formaldehyde condensate (NNO) and sodium lignosulfonate are blended with water, they are ground and dispersed with a sand mill, and then spray-dried.

Among them, the dye monomer A can choose C.I.DISP.BLUE 60# produced by Zhejiang Runtu Co., Ltd. (the main components are dye monomer A and auxiliary agents), and the dye monomer B can choose C.I.DISP produced by Zhejiang Runtu Co., Ltd. .VIOLET 93# (the main component is dye monomer B and auxiliaries), dye monomer C can choose DISP.ORANGE 30# produced by Zhejiang Runtu Co., Ltd. (the main component is dye monomer C and auxiliaries)

Table 1 Example Dye monomer A (g) Dye monomer B (g) Dye monomer C (g) Dispersant MF(g) Diffusion agent CNF (g) Diffusion agent NNO (g) Diffusion agent sodium lignosulfonate (g) water (g) 1 11.0 4.60 1.9 20.0 10.0 20.0 15.8 125 2 24.5 10.4 4.3 10.0 0 11.4 6.0 100 3 6.2 4.4 7.8 0 25.0 25.0 18.2 130 4 15.3 10.8 19.0 11.5 10.0 10.0 0 115 5 4.6 2.9 5.7 20.0 20.0 0 26.8 120 6 31.9 14.2 5.6 15.5 0 15.6 0 125 7 5.1 2.7 0.8 0 15.0 20.0 29.7 110 8 17.2 12.2 21.4 10 10.5 0 10.0 122

The disperse dye that above-mentioned embodiment is made carries out performance test, and test method is as follows:

Each get 0.5 gram of the disperse dyes that embodiment 1～8 makes, and water is mixed with the dispersion suspension that concentration is 0.5g/500ml respectively, absorbs the water combination of 20ml and 80ml, adjusts dye bath pH to 5 with acetic acid, then heats up to At 60°C, put 2g of polyester fiber into it for high-temperature and high-pressure dyeing at the same time, heat up to 130°C within 35 minutes, keep it warm for 30 minutes, and take a sample when it cools to 80°C. Observe the color light of the cloth sample and adopt GB/T3921-1997, GB/T3920-1997,

GB/T5718-1997 measures its color fastness. The measurement results are shown in Table 2.

Table 2 Example name color Washing fastness (60℃) Rubbing fastness Sublimation fastness (180℃) Example 1 dark blue Level 4~5 Level 4~5 Level 4~5 Example 2 dark blue Level 4~5 Level 4~5 Level 4~5 Example 3 grey Level 4~5 Level 5 Level 5 Example 4 grey Level 4~5 Level 4~5 Level 4~5 Example 5 grey Level 5 Level 4~5 Level 5 Example 6 dark blue Level 4~5 Level 4~5 Level 4~5 Example 7 dark blue Level 5 Level 5 Level 5 Example 8 grey Level 4~5 Level 4~5 Level 4~5

The combined disperse dye of the invention has high washing fastness, rubbing fastness and sublimation fastness, and can be widely used in printing and dyeing of various polyester materials.

Claims (2)

1. A combined disperse dye for printing and dyeing polyester materials, the percentage by weight consists of: 5.70～38.30% of the dye monomer A shown in formula (1) 3.62～17.10% dye monomer B shown in formula (2) where X = Cl, Br 1.00～26.30% of the dye monomer C shown in formula (3)

The balance is additives. 2. combined disperse dyes according to claim 1, percentage by weight consists of: 7.20-36.80% of dye monomer A shown in formula (1), 5.10-15.60% of dye monomer B shown in formula (2), 2.34-24.80% of dyes shown in formula (3) Monomer C, the balance is additives.