Aramid fiber pretreatment liquid and application thereof
A technology of aramid fiber and pre-treatment solution, which is applied in the textile field, can solve the problem that the carrier is difficult to remove, and achieve the effect of reducing the amount of carrier and environmental protection of the dyeing process
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Embodiment 1
[0028] Dyeing process: aramid fiber pretreatment → washing → dyeing → washing → drying
[0029] The pre-treatment process is as follows: immerse the weighed aramid fiber in the prepared pre-treatment solution, and ultrasonically treat it at 98°C for 60 minutes, wherein, the pre-treatment solution formula: degreaser YM-1107A2g / l, chlorinated Calcium 3g / l, the balance is soft water, bath ratio 1:30.
[0030] Dyeing process: dye solution formula: disperse ruby S-2GL6wt%, sodium chloride 2wt%, dyeing aid DEET30g / l, dyeing conditions: pH value = 5 (adjusted with acetic acid), temperature 130 ° C, time 60 minutes, bath The ratio is 1:30.
[0031] Submerge the dyed aramid fiber in the reducing cleaning solution composed of 2g / L sodium dithionite and 2g / LNaOH, the bath ratio is 1:15, after 15min at 80°C, wash with hot water, cold water, 100-110°C Tumble dry with hot air.
[0032] After dyeing, the K / S value is 28, the wet rubbing fastness is grade 3.5, and the dry rubbing fastnes...
Embodiment 2
[0034] Dyeing process: aramid fiber pretreatment → washing → dyeing → washing → drying
[0035] Pre-treatment process: immerse the weighed aramid fiber in the prepared pre-treatment liquid, and ultrasonically treat it at 90°C for 50 minutes, wherein, the pre-treatment liquid formula: degreasing agent YM-1107A3.5g / l, chlorine Calcium 6g / l, the balance is soft water, bath ratio 1:20.
[0036] Dyeing process: dye solution formula: disperse ruby S-2GL5wt%, sodium chloride 3wt%, dyeing aid DEET40g / l, dyeing conditions: pH value = 4.5 (adjusted with acetic acid), temperature 130 ° C, time 50 minutes, bath The ratio is 1:20.
[0037] Submerge the dyed aramid fiber in the reducing cleaning solution composed of 2g / L sodium dithionite and 2g / LNaOH, the bath ratio is 1:15, after 15min at 80°C, wash with hot water, cold water, 100-110°C hot air drying
[0038] After dyeing, the K / S value is 32, the wet rubbing fastness is grade 4, and the dry rubbing fastness is grade 5.
Embodiment 3
[0040] Dyeing process: aramid fabric pretreatment → washing → dyeing → washing → drying
[0041] Pre-treatment process: immerse the weighed aramid fiber in the prepared pre-treatment liquid, and ultrasonically treat it at 98°C for 60 minutes, wherein, the pre-treatment liquid formula: degreasing agent YM-1107A5g / l, calcium chloride 10g / l, the balance is soft water, the liquor ratio is 1:10.
[0042] Dyeing process, dye solution formula: disperse red 3B 4wt%, sodium chloride 2wt%, dyeing aid DEET 20g / l, dyeing conditions: pH value = 4 (adjusted with acetic acid), temperature 120 ° C, time 40 minutes, liquor ratio 1: 10.
[0043] Submerge the dyed aramid fiber in the reducing cleaning solution composed of 2g / L sodium dithionite and 2g / LNaOH, the bath ratio is 1:15, after 15min treatment at 80°C, hot water washing, cold water washing, 100-110°C hot air drying.
[0044] After dyeing, the K / S value is 25, the wet rubbing fastness is grade 4, and the dry rubbing fastness is grade...
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