阅读说明：本技术 一种高日晒牢度棉用荧光增白剂组合物 (Fluorescent whitening agent composition for high-light-fastness cotton ) 是由 竹百均 竹季军 于 2020-05-23 设计创作，主要内容包括：本发明公开一种高日晒牢度棉用荧光增白剂组合物,涉及增白剂领域,旨在解决现有增白剂普遍存在日晒牢度和耐洗牢度差的缺点,其技术方案要点是：包括以下质量百分比的组分：荧光增白剂10-30％、紫外线吸收剂20-40％、葡萄糖酸钠15-40％、表面活性剂3-15％、渗透剂4-15％、稳定剂3-10％,氢氧化钠0.1-0.3％、其余为水。本发明不仅具有很好的日晒牢度,且耐洗度好、热稳定性好、白度值不易受酸碱度影响,大大提高增白效果。(The invention discloses a fluorescent whitening agent composition for cotton with high light fastness, relates to the field of whitening agents, aims to solve the defects of poor light fastness and washing fastness of the existing whitening agents, and has the technical scheme that: the composite material comprises the following components in percentage by mass: 10-30% of fluorescent whitening agent, 20-40% of ultraviolet absorbent, 15-40% of sodium gluconate, 3-15% of surfactant, 4-15% of penetrating agent, 3-10% of stabilizer, 0.1-0.3% of sodium hydroxide and the balance of water. The invention has good light fastness, good washing fastness, good thermal stability, and the whiteness value is not easily affected by pH value, thus greatly improving the whitening effect.)

1. The fluorescent whitening agent composition for the cotton with high light fastness is characterized by comprising the following components in percentage by mass: 10-30% of fluorescent whitening agent, 20-40% of ultraviolet absorbent, 15-40% of sodium gluconate, 3-15% of surfactant, 4-15% of penetrating agent, 3-10% of stabilizer, 0.1-0.3% of sodium hydroxide and the balance of water.

2. The fluorescent brightener composition for cotton with high light fastness according to claim 1, further comprising wheat starch and corn starch, wherein the amount of the wheat starch and the corn starch is 15-40 g/L.

3. The fluorescent brightener composition for high-light-fastness cotton is characterized in that the fluorescent brightener is a brightening agent 4bk for cotton and a brightening agent MST for cotton, and the mass ratio of the brightening agent 4bk for cotton to the brightening agent MST for cotton is 1.5-2: 1.

4. the fluorescent brightener composition for high-light-fastness cotton according to claim 1, wherein the ultraviolet absorbent is phenyl salicylate and an ultraviolet absorbent UV-O, and the mass ratio of the phenyl salicylate to the ultraviolet absorbent UV-O is 1: 1-3.

5. The fluorescent brightener composition for high light fastness cotton according to claim 1 wherein the surfactant is a nonionic surfactant.

6. The fluorescent brightener composition for high light fastness cotton according to claim 1, wherein the penetrant is nekal.

7. The fluorescent whitening agent composition for high light fastness cotton according to claim 1, wherein the stabilizer is an epoxy compound.

Technical Field

The invention relates to the field of brightening agents, in particular to a fluorescent whitening agent composition for cotton with high light fastness.

Background

Whitening agents are organic compounds that increase the whiteness of fabrics and paper, also known as optical brighteners, fluorescent brighteners, and the like. Fabrics and the like are often yellow due to colored impurities, chemical bleaching methods are adopted for decolorization in the past, and a method of adding a whitening agent into the fabrics is adopted at present, wherein the effect of the whitening agent is to convert invisible ultraviolet radiation absorbed by the fabrics into purple-blue fluorescent radiation, the purple-blue fluorescent radiation is complementary with original yellow light radiation to be white, and the whiteness of the products under sunlight is improved.

The quality requirement of the current textile printing and dyeing industry on the used fluorescent whitening agent is higher and higher, the fluorescent whitening agent is required to ensure that the color light of the whitened fabric is pure and bright, and the whitened fabric has higher light fastness, and the existing whitening agent generally has the defects of poor light fastness and poor washing fastness.

Therefore, a new solution is needed to solve this problem.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a fluorescent whitening agent composition for cotton having high light fastness.

The technical purpose of the invention is realized by the following technical scheme: a fluorescent whitening agent composition for cotton with high light fastness comprises the following components in percentage by mass: 10-30% of fluorescent whitening agent, 20-40% of ultraviolet absorbent, 15-40% of sodium gluconate, 3-15% of surfactant, 4-15% of penetrating agent, 3-10% of stabilizer, 0.1-0.3% of sodium hydroxide and the balance of water.

The invention is further configured to: also comprises wheat starch and corn starch, wherein the dosage of the wheat starch and the corn starch is 15-40 g/L.

The invention is further configured to: the fluorescent whitening agent is a whitening agent 4bk for cotton and a whitening agent MST for cotton, and the mass ratio of the whitening agent 4bk for cotton to the whitening agent MST for cotton is 1.5-2: 1.

the invention is further configured to: the ultraviolet absorbent is phenyl salicylate and an ultraviolet absorbent UV-O, and the mass ratio of the phenyl salicylate to the ultraviolet absorbent UV-O is 1: 1-3.

The invention is further configured to: the surfactant is a nonionic surfactant.

The invention is further configured to: the penetrating agent is nekal.

The invention is further configured to: the stabilizer is epoxy compound.

In conclusion, the invention has the following beneficial effects:

the invention has good light fastness, good washing fastness, good thermal stability, and the whiteness value is not easily affected by pH value, thus greatly improving the whitening effect.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.