阅读说明：本技术 一种大红色荧光染料及其应用 (Bright red fluorescent dye and application thereof ) 是由 李百春 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种大红色荧光染料及其应用,属于荧光染料领域,一种大红色荧光染料,包括一种或两种以上结构如式(I)所示的化合物或混合物；<Image he="199" wi="700" file="DDA0002520866800000011.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>式(I)中,R为Cl或SO<Sub>3</Sub>H,相比于现有技术中分散红277、分散红362以及罗丹明红,它应用到面料上后,水洗牢度、日晒牢度、升华牢度、洗涤牢度、摩擦牢度、汗渍牢度、熨烫牢度、氯浸牢度以及汗光牢度相对较好,且颜色更鲜艳。(The invention discloses a bright red fluorescent dye and application thereof, belonging to the field of fluorescent dyes, wherein the bright red fluorescent dye comprises one or more than two compounds or mixtures with the structure shown in the formula (I); in the formula (I), R is Cl or SO 3 Compared with the disperse red277, the disperse red362 and the rhodamine red in the prior art, after the disperse red277, the disperse red362 and the rhodamine red are applied to the fabric, the color fastness to washing, the light fastness, the sublimation fastness, the washing fastness, the rubbing fastness, the perspiration fastness, the ironing fastness, the chlorine soaking fastness and the perspiration fastness are relatively good, and the color is more bright.)

1. A bright red fluorescent dye is characterized by comprising one or more compounds or mixtures with the structure shown in formula (I);

in the formula (I), R is Cl or SO₃H。

2. The bright red fluorescent dye according to claim 1, wherein R is Cl and has the following structural formula:

3. the method for preparing a bright red fluorescent dye according to claim 2, wherein the dye represented by the formula (II) is prepared by reacting a component represented by the formula (II-1) with sodium cyanide in bromine water, and the component represented by the formula (II-1) has the following structural formula:

4. the preparation method of the bright red fluorescent dye according to claim 3, wherein the mass fraction of the component shown in the formula (II-1) is 10-30%, the mass fraction of the sodium cyanide is 20-25%, and the balance is bromine water;

5. the bright red fluorescent dye according to claim 1, wherein R is SO₃H, the structural formula is as follows:

6. the method for preparing a bright red fluorescent dye according to claim 5, wherein the dye represented by the formula (III) is prepared by reacting a component represented by the formula (III-1) with sodium cyanide in bromine water, and the component represented by the formula (III-1) has the following structural formula:

7. the preparation method of the bright red fluorescent dye according to claim 6, wherein the mass fraction of the component shown in the formula (III-1) is 10-30%, the mass fraction of the sodium cyanide is 20-25%, and the balance is bromine water;

8. the bright red fluorescent dye according to claim 1, wherein the dye is prepared by mixing a dye A shown in a formula (II) and a dye B shown in a formula (III) in any proportion;

9. the bright red fluorescent dye according to claim 8, wherein the ratio of the dye A shown in the formula (II) to the dye B shown in the formula (III) in the dye is 1: 0.5 to 6.5;

10. the bright red fluorescent dye according to claim 9, wherein the ratio of the dye A shown in the formula (II) to the dye B shown in the formula (III) in the dye is 1: 4;

11. the use of a bright red fluorescent dye according to claim 1 on superfine fabrics.

Technical Field

The invention relates to the field of fluorescent dyes, in particular to a bright red fluorescent dye and application thereof.

Background

Currently, the disperse fluorescent dyes on the market are mainly disperse Red277 (Dis Red277) and disperse Red362 (Dis Red362), and for the Acid fluorescent dyes, the fluorescent scarlet is mainly Acid Red52 (rhodamine Red).

However, the brightness of the fabric dyed by the dyes is not obvious enough, especially the scarlet bright red, and the dyes which can satisfy the fluorescence and have good brightness are fewer in the current market.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a bright red fluorescent dye and an application of the bright red fluorescent dye in dyeing, and compared with disperse red277, disperse red362 and rhodamine red in the prior art, the fastness to washing, light fastness, sublimation fastness, washing fastness, rubbing fastness, perspiration fastness, ironing fastness, chlorine soaking fastness and perspiration fastness after dyeing are relatively good, and the color is more bright.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A bright red fluorescent dye comprises one or more compounds or mixtures with the structure shown in formula (I);

in the formula (I), R is Cl or SO₃H。

Further, R is Cl, and the structural formula is as follows:

further, a preparation method of the bright red fluorescent dye shown as the formula (II): the component shown in the formula (II-1) and sodium cyanide are put into bromine water to react to prepare the catalyst, and the structural formula of the component shown in the formula (II-1) is as follows:

further, the mass fraction of the component shown in the formula (II-1) is 10-30%, the mass fraction of the sodium cyanide is 20-25%, and the balance is bromine water.

Further, the prepared component shown as the formula (II) is applied to dyeing of superfine fabrics.

Further, R is SO₃H, the structural formula is as follows:

further, a preparation method of the bright red fluorescent dye shown as the formula (III): the component shown in the formula (III-1) and sodium cyanide are put into bromine water to react to prepare the catalyst, and the structural formula of the component shown in the formula (III-1) is as follows:

further, the mass fraction of the component shown in the formula (III-1) is 10-30%, the mass fraction of the sodium cyanide is 20-25%, and the balance is bromine water.

Further, the prepared component shown as the formula (III) is applied to dyeing of superfine fabrics.

Further, the dye is formed by mixing a dye A shown in a formula (II) and a dye B shown in a formula (III) in any proportion.

Further, the prepared mixed dye is applied to fabric dyeing.

Further, the ratio of the dye A shown in the formula (II) to the dye B shown in the formula (III) in the dyes is 1: 0.5 to 6.5.

Further, the ratio of the dye A shown in the formula (II) to the dye B shown in the formula (III) in the dyes is 1: 4.

3. advantageous effects

Compared with the prior art, the invention has the advantages that: compared with disperse red277, disperse red362 and rhodamine red in the prior art, the dye of the scheme has relatively good washing fastness, light fastness, sublimation fastness, washing fastness, rubbing fastness, perspiration fastness, ironing fastness, chlorine soaking fastness and perspiration fastness after dyeing, and has more bright color.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely described below; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.