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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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