Everlight USA, Inc.

Everlight Chemical Industrial Corporation

Bao-Kun Lai

Ya-Chi Tseng

Cheng-Hsiang Hsu

Huei-Chin Huang

Wen-Jang Chen

Huei Ching Huang

Mao Cheng Hsu

Chien-Yu Chen

Tzu-Heng Ko

Der-Gun Chou

Mei-Ting Lu

Yuan-Pin Pan

Sheena Lee

Sheue-Rong Lee

Huei-Jen Yang

Te-Chin Sung

Jung-Fang Yeh

Der-Chin Song

A polyurethane-based UV absorber, obtained by reacting a UV absorber having a reactive hydrogen with a polyisocyanate and a diol or polyol; wherein the weight average molecular weight of the polyurethane-based UV absorber is in a range of 10,000 to 200,000.

Polyurethane-based UV absorber

The present invention provides a reactive red dye composition comprising (A) 3% to 97% by weight of a reactive azo dye of the following formula (I), wherein W, Dand Dare defined the same as the specification; and (B) 97% to 3% by weight of a reactive azo dye of the following formula (II), wherein R, X, Z, Dand Dare defined the same as the specification. The reactive red dye composition of the present invention can be utilized to dye cellulose fibers. The cellulose fibers dyed by the reactive red dye composition obtain not only good build-up and level dyeing properties but also an excellent property of white discharging.

Reactive red dye composition and application thereof

A reactive trichromatic set comprising (a) at least one of the following reactive red dye of formula (I), wherein R, R, R, X, D, Z, and n are defined the same as in the specification; (b) at least one reactive yellow dye selected from the following Color Index; C.I. Reactive Yellow 145 and C.I. Reactive Yellow 176; and (c) at least one reactive blue dye selected from the following Color Index; C.I. Reactive Blue 194, C.I. Reactive Blue 221 and C.I. Reactive Blue 222.

Reactive trichromatic dye set

The present invention discloses a reactive yellow dye composition comprising component (A) and component (B). The component (A) is a reactive azo dye represented by the following formula (I) or formula (II), The component (B) is a reactive azo dye represented by the following formula (III), wherein the substituents of the formulas (I), (II) and (III) are defined the same as in the specification. Moreover, the reactive yellow dye composition of the present invention has excellent build-up, wash-off and light fastness and can be applied with dyestuffs in other colors.

Reactive yellow dye composition

A dye composition, comprising (A) at least one disazo dye selected from the formula (I) or (II), wherein R, R, R, Dand Dare defined as in the specification; and (B) a diazo dye of the formula (III), wherein (R), (R), Qand Qare defined as in the specification. These dye compositions have high fixation and good build-up. They are distinguished also by high washing off and low nylon staining and they are suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, artificial cotton, linen, and artificial linen, or polyamide fibers, such as wool, silk, and nylon etc. Dyed materials with excellent properties can be obtained, showing especially outstanding performance in washing off, levelness, build-up, wet fastness and light fastness.

Dye composition and the use thereof

A reactive dye composition having satisfactory reproducibility, leveling, washing off and toughness under balanced affinity and reactivity, and improving Right First Time success ratio, for dyeing a cellulose fiber or fiber materials containing the cellulose fiber. The reactive dye composition comprising: 

Reactive dye composition and the use thereof

A dye composition is disclosed, which comprises a blue anthraquinone dye of the following formula (I)wherein Y is &#x2014;CH&#x2550;CH, &#x2014;CHCHCl or &#x2014;CHCHOSOH; and a gray-black azo dye of the following formula (II)wherein Y is defined as the above. The dye compositions of the present invention have good stability and build-up property. The dye compositions are suitable for dyeing and printing materials that contain either cellulose fibers, such as cotton, artificial cotton, linen, and artificial linen, or synthetic polyamide, such as wool, silk, and nylon. The materials obtained through treatment with the dye compositions aforementioned show excellent properties, especially in wash-off, level-dyeing, build-up, light fastness and perspiration-light fastness.

Reactive dye mixtures comprising a black or navy reactive dye and a reactive disazo dye. The reactive dye mixtures of the present invention are suitable for exhaust dyeing, printing, continuous dyeing or discharge printing of a blended or interwoven fabric of cellulose fibres or cellulose nylon blends. The compounds of the present invention display good level dyeing properties, good build up and excellent low nylon cross-dyeing.

Mixtures of reactive dyes and their use

A yellow reactive dye composition which includes two different yellow reactive dyes is disclosed. The yellow reactive dye composition disclosed here is a reactive dye composition with good stability, build-up, light fastness and wet fastness. The yellow reactive dye composition is suitable for the natural and regenerated cellulose fibers in exhaust dyeing, printing and continous dyeing.

Yellow reactive dye composition

A reactive dye composition comprising (a) at least a black or navy reactive dye with good color fastness to laundering-oxidative bleach response; and (b) at least a red, orange, yellow or other shade of reactive azo dye. The dye composition of the present invention is suitable for use in dyeing fiber materials. It has good property in build-up, wash fastness, wash-off, and levelness, especially performing excellently in the properties of good color fastness to laundering-oxidative bleach response.

Growing community of inventors

Taoyuan Hsien, Taiwan

Bao-Kun Lai