Paper Dyestuff

Location:
Ho , Chi Minh
Status:
New
Sample Availibility:
yes
Payment Terms:
Cash, Bank Transfer, Letter of Credit, T/T, L/C
Categories:

Product Description

Thuphahu Co.,Ltd becomes a leading supplier of paper dyestuff in Viet Nam market some years ago after many efforts. We are the first local supplier to supply free services of color analysis and technical services to run in paper mills, supporting our customers diversifying their products.

We would like to present some description on some dyes grades for paper making:

Acid Dyestuff:

Acid dyestuffs normally don’t have much direct affinity to cellulose fibers. It needs some fixing agents to retain on the fiber. The most common fixing agent is used together with acid dyes in paper is ALUM in acid system. Acid dyes give bright color shade on resultant paper but low light color fastness. Almost acid dyes are cheap in cost compared to other dyes..

Basic Dyestuffs:

Basic dyes have a very bright shade but the fastness light, water, alkaline, acid is quite poor. It contains cationic charge. Thus it can not be mixed directly with anionic dyes. However, they can be added to the system separately. Some acetic acid should be added in preparation in to solution.

We suggest to use direct dyes ( powder or liquid) for paper making for better result.

Direct Dyestuff:

Direct dye has a good direct affinity to cellulose and hemicellulose. It can be fixed directly to the fibers without Alum or other fixing agents. This dye grade can be applied on various grades of fibers (bleached, unbleached, DIP, recycled…). The fastness to light, water, alkaline, acid is very good. It can work well in a wide pH range (4.5 to 8.0).



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Contact Information

Company:
 THUPHAHU CO LTD
Phone Number:
  84-8-62687878
Fax Number:
 84-8-62687879