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Fastness improver for spandex blends

NEOLEVE SDX-D, EMILL NW-1570, QUEENFIX NPU-01
(1) 
preventing spandex from staining during dyeing.
(2)
avoiding redeposition of dyes during washing are important.

Polyester/spandex blends recommended recipe

(1) 
Adding Neoleve SDX-D (staining inhibitor) during dyeing prevents disperse dye staining(adsorption) on spandex, and helps its further distribution into polyester.
(2)
Emill NW-1570 (reduction clearing agent) used in reduction clearing further washes off disperse dyes stains on spandex, leading to good reproducibility and colorfastness (including for washing, dry-cleaning and staining of test liquor).
(3)
When uneven dyeing occurs because of the high blended rate of spandex, adding 1~2g/L of Newsurf MF-10 (special scouring agent) to the dye bath eliminates the trouble of uneven dyeing of polyester/spandex by emulsifying/dispersing and solubilizing silicone oil attached to spandex.

Nylon/spandex blends recommended recipe

(1) 
Adding Neoleve SDX-D (staining inhibitor) during dyeing forcefully prevents acid dye staining on spandex.
(2)
Emill NW-1570 (reduction clearing agent) used in soaping further washes off acid dye stains on spandex and prevents redeposition.
(3)
By using Queenfix NPU-01 (fixing agent) in fixing, excellent fastness can be achieved without color alternation and dullness. Fastness can be improved significantly compared to conventional synthetic tannin type nylon fixing agents.
(4)
Depending on the type of leveling agent, scum may occur during treatment with QueenfixNPU-01 (fixing agent). In this case, 0.3~0.5g/L of Preventer S (Anti-scum agent for nylon) can be added in the fixing bath or the type of leveling agent can be changed.
(5)
When uneven dyeing occurs because of the high blended rate of spandex, adding 1~2g/L of Newsurf MF-10 (special scouring agent) to the dye bath eliminates the trouble of uneven dyeing of nylon/spandex by emulsifying/dispersing and solubilizing silicone oil attached to spandex.
KOTANI CHEMICAL
13-14, CHIKKO HAMADERA NISHI MACHI, NISHI-KU, SAKAI CITY, OSAKA 592-8352, JAPAN
Phone:+81 72 268 0291
FAX   :+81 72 268 0293
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