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      Product Category
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      Application

      Application Of Direct Dyes

      1. Recommended dyeing
      1.1

      Acid dyestuff leveling agent
      0.5~1.5%
      Na2SO4
      0~10%
      Ammonium sulfate or Acetate
      2~4%
      Acetic acid 80%
      X%
      Adjust PH 4-5, light color PH to 6.0
       

      1.2 Y% Dyes

      Note: Dyeing 30-60min in 98-100℃ (Dyeing time of salt depend on the dyeing depth); For the light color or difficult to dye, recommended keeping in 65-75℃ for 10-15min.

      2. Post-processing and acidizing
      Recommend add 1-2% formic acid in the last shower bath. Improving the wooi and the spinning performan.ce of scattered wool and woolen sliver. also the fabric’s heat water washing fastness and mouldproof .

      3. Fixing
      Usually less dosage of dyes are used in light and extra light color . so no need to fix color with good color fastness. But also accords to demands; in deep color, the technology and formula of fixation like below:

      Bath ratio
      1:10
      Dye•fixing agent
      1-2g/L
      Acetic acid
      0.5g/L
      PH
      4.5-5.0
      Temperature • time
      70℃·20min

      For Reference only

      Application Of Direct Dyes

      1. Exhaust dyeing
      1.1 Recipe of dyeing bath

      Dyeing method
      Weak Alkli
      Neutral
      Dyestuff,%(owf)
      x
      y
      Na2CO3,g/L
      1~2
      -
      Na2SO4,g/L
      0~30
      0~30

      1.2 Dyeing procedure
      1.2.1 Common dyeing

      1.2.2 Dyeing bath with disperse dyes


      2. Padding
      2.1 Recipe of padding tiquor

      Dyestuff
      X  g/L
      Levelling agent
      20  g/L
      Na3PO4
      200 g/L
      Other Additives
      20  g/L

      2.2 Procedure
      Padding(Liquor pick-up 80%,Temp,60℃)→Steaming (Temp 100~103℃.Time.1-4min)→Rinsing→Fixing→Drying.
      For Reference only

      Add: Tianhu Town, Song County, Luoyang City, Henan Province
      Tel: +86-379-66578111 Fax: +86-379-66578287
      Sales Department: Manager Su 13721671000
      E-mail: luoyanghuasu1@163.com
      Copyright(C)2017 , Luoyang Huasu Dyestuff Co., Ltd All Rights Reserved.  Supported by  ChemNet  ChinaChemNet
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