| 发明名称 |
Aramid fibre treatment in liquid ammonia to increase basic dye affinity |
| 摘要 |
In a process for improving the dye affinity of aromatic polyamides with NH3, aramid fibres are treated in liquid NH3 and then dyed with basic dye. Treatment in liquid NH3 is carried out for 3 s to 10 min at -40 to -33 deg C and atmos. pressure. After padding, the NH3 is removed by steaming or rinsing. The aramid fibres must remain damp, pref. with a water content of over 100%, between pretreatment and dyeing.
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| 申请公布号 |
DE4411011(A1) |
申请公布日期 |
1995.10.05 |
| 申请号 |
DE19944411011 |
申请日期 |
1994.03.30 |
| 申请人 |
THUERINGISCHES INSTITUT FUER TEXTIL- UND KUNSTSTOFF-FORSCHUNG EV, 07407 RUDOLSTADT, DE |
发明人 |
NICOLAI, MONIKA, 07422 BAD BLANKENBURG, DE;NECHWATAL, AXEL, 07407 RUDOLSTADT, DE |
| 分类号 |
D06M11/61;D06P1/673;D06P3/24;(IPC1-7):D06M11/61;D06B7/00;D06P1/41 |
主分类号 |
D06M11/61 |
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