About
our company
Hangzhou Xiasa Hengsheng Chemical Co., Ltd was founded in 1993 in Hangzhou and it has been focusing on R&D, production and marketing of dyes (acid dyes, vat dyes, reactive dyes, unsalted dyes and ultra washable dyes) and cosmetic color lakes. The enterprise has more than 200 dye varieties. The products are widely used in silk, polyamide, wool, leather, wood, cotton, celluose fibers, writing inks, inkjet inks, daily chemicals, agrochemicals, metal, paper, medicine, coating, cosmetics and other industries. The company’s marketing division was transformed into Zhejiang Changsheng Technology Co., Ltd in 2020, and now we have multiple production bases in Inner Mongolia and Zhejiang province.
We have a high-level R&D team and the ISO9001:2015 quality management certificate.
Our commitment: A parter you can trust!
WHY
CHOOSE US
We work directly for our clients and put client’s interests first. Innovation Guides Us As Always
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Set a StrategyDetermine quantity, style and delivery time.
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Sign ContractProvide efficient, high-quality services.
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ProductionStrict control and quality control at all levels.
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DeliveryDelivery to customers according to contract time.
Our hot sale products
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![Blue NHF-S]( "Blue NHF-S")
Blue NHF-S1:2 Metal Complex Dyes. Have High Light And Wet Fastness. Mainly For Medium And Deep Shades. Suitable For The Dyeing Of Polyamide, Polyamide/Cotton,...
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![Brown S-GR]( "Brown S-GR")
Brown S-GRMetal Complex Acid Dyes For Wool, Silk And Polyamide, Mainly Used For Medium And Deep Shades. Have Hight Light, Wet, Wahsing Fastness.
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![Grey S-GL]( "Grey S-GL")
Grey S-GLMetal Complex Acid Dyes For Wool, Silk And Polyamide, Mainly Used For Medium And Deep Shades.Good Levelling In Wool. Have Hight Light And Wet Fastness.
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![Green HS]( "Green HS")
Green HSOne Of Acid Dyes With Fluorescence. Have Very Brilliant Shade. Mainly Used For Cautionary Clothing, Sports Shoes Made Of Polyamide And Wool Products.
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![Red L-2G]( "Red L-2G")
Red L-2GOne Of Acid Dyes. Mainly Used In Polyamide. Very Good Levelling And Migration Properties. Suitable For Pale Shade.
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![Yellow L-GR]( "Yellow L-GR")
Yellow L-GROne Of Acid Dyes. Mainly Used In Polyamide. High Light Fastness, Even For Pale Shades. Excellent Migration And Very Good Levelling And Covering Properties.
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![Blue A-R]( "Blue A-R")
Blue A-ROne Of Acid Dyes. Mainly Used In Polyamide. Good Light Fastness And Medium Wet Fastness. Straight Brilliant Shade. Suitable For Pale And Medium Shade. Good...
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![Golden Yellow A-R]( "Golden Yellow A-R")
Golden Yellow A-ROne of acid dyes. Mainly used in polyamide. Good levelling and migration. Suitable for pale and medium shade. Good covering with suitable levelling agent.
Exhibition
2011 China Interdye
2015 Dye Exhibition in India
2016 China Interdye
2024 China Interdye
2015 Dye Exhibition in India
Latest news and events
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![What Products Are Salt-free Dyes Generally Used For Dyeing?]()
Jun 06, 2025What Products Are Salt-free Dyes Generally Used For Dyeing?Salt-free dyes are primarily used for textile dyeing. Their core advantage lies in their environmental friendliness, significantly reducing wastewater discha...view more -
![Application Classification Of Acid Dyes]()
Aug 29, 2025Application Classification Of Acid DyesAcid dyes are primarily classified into three categories: 1.Classification by Dyeing Conditions Strong Acid Dyes: Require strong acidic conditions (pH 2-4) a...view more -
![Is There Any Difference Between Acid Dyes And Basic Dyes?]()
Jun 02, 2025Is There Any Difference Between Acid Dyes And Basic Dyes?Acid dyes and basic dyes differ significantly in several aspects. The following is a detailed comparison of these two types of dyes: I. Definition and Ioniza...view more
