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首页> 外文期刊>Journal of Applied Polymer Science >Effect of atmospheric pressure helium plasma on felting and low temperature dyeing of wool
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Effect of atmospheric pressure helium plasma on felting and low temperature dyeing of wool

机译：大气压氦等离子体对羊毛毡化和低温染色的影响

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摘要

Wool fabrics were treated with atmospheric pressure helium glow discharge plasma in an attempt to improve felting and dyeing behavior with cold brand reactive dyes using cold pad-batch method at neutral pH. On glow plasma treatment, the hydrophilicity of wool surface and its resistance toward felting was greatly improved without any significant damage to the cuticle layer. The color strength of the plasma treated dyed wool on the surface (in terms of K/S) was found to be nearly double of the color strength of dyed untreated wool fabric. However, the corresponding total dye uptake of the treated wool increased by a much lower value of 40%-50%. The reason behind this altered dyeing behavior was investigated by studying the dye kinetics using infinite bath and surface characteristics using SEM and SIMS. It was found that the glow plasma treatment greatly transformed the chemical surface of the wool fibers. It resulted in uniform removal of hydrophobic cuticular layer, which resulted in better diffusion of the dye molecules into the fiber, and formation of hydrophilic -NH _ groups near the surface, which helped in anchoring the dye molecules close to the surface giving higher color strength than expected.
机译：羊毛织物用大气压氦辉光放电等离子体处理，以尝试在中性pH下使用冷轧分批法改善冷品牌活性染料的毡制和染色行为。在辉光等离子体处理中，羊毛表面的亲水性及其对毡化的抵抗力大大提高，而对表皮层没有任何明显的损害。发现经等离子体处理的染色羊毛在表面上的色强度（以K / S计）几乎是未处理的染色羊毛织物的色强度的两倍。但是，处理过的羊毛的相应总染料吸收量增加了40％-50％的低得多的值。通过研究使用无限浴的染料动力学以及使用SEM和SIMS的表面特性，研究了这种染色行为改变的原因。发现辉光等离子体处理极大地改变了羊毛纤维的化学表面。它导致疏水性表皮层的均匀去除，从而使染料分子更好地扩散到纤维中，并在表面附近形成亲水性-NH _基团，这有助于将染料分子锚定在表面附近，从而提供更高的色强度超出预期。

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