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紡織前處理助劑的作用

  的(de)(de)作(zuo)用(yong)機(ji)理(li)(li)抗(kang)(kang)(kang)靜(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)劑的(de)(de)結構通式為R-Y-x,其中R為親油(you)基(ji)(ji)(ji)團,x為親水(shui)基(ji)(ji)(ji)團,Y為連接基(ji)(ji)(ji)。分子中非極(ji)(ji)性(xing)部分的(de)(de)親油(you)基(ji)(ji)(ji)和(he)極(ji)(ji)性(xing)部分的(de)(de)親水(shui)基(ji)(ji)(ji)之間應具有(you)適(shi)當的(de)(de)平衡,與(yu)高分子材(cai)料(liao)要有(you)一(yi)定(ding)的(de)(de)相容性(xing),C12以(yi)上的(de)(de)烷基(ji)(ji)(ji)是典(dian)型的(de)(de)親油(you)基(ji)(ji)(ji)團。羥基(ji)(ji)(ji)、羧基(ji)(ji)(ji)、磺酸(suan)基(ji)(ji)(ji)和(he)醚鍵是典(dian)型的(de)(de)親水(shui)基(ji)(ji)(ji),添加抗(kang)(kang)(kang)靜(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)劑通過添加抗(kang)(kang)(kang)靜(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)劑,使(shi)制品表(biao)面(mian)吸(xi)濕(shi)性(xing)增加,形(xing)成單分子層的(de)(de)導電(dian)(dian)(dian)(dian)(dian)膜,從而加快了靜(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)荷(he)的(de)(de)泄漏,抗(kang)(kang)(kang)靜(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)劑主要是表(biao)面(mian)活性(xing)劑,按使(shi)用(yong)方法分為外處理(li)(li)型和(he)內添加型兩種(zhong),抗(kang)(kang)(kang)靜(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)技術及其應用(yong)塑料(liao)制品是否帶電(dian)(dian)(dian)(dian)(dian)或帶電(dian)(dian)(dian)(dian)(dian)的(de)(de)多少(shao)可用(yong)體(ti)積電(dian)(dian)(dian)(dian)(dian)阻或表(biao)面(mian)電(dian)(dian)(dian)(dian)(dian)阻來(lai)評價。

  對在(zai)(zai)堿性(xing)(xing)染液中能(neng)沉淀的(de)(de)坯布雜質具有分散作用(yong),通常坯布中滌(di)綸部分上染之后,紡織(zhi)前(qian)處(chu)理助劑(ji)在(zai)(zai)酸性(xing)(xing)介質中溶解的(de)(de)棉雜質,在(zai)(zai)隨后的(de)(de)堿性(xing)(xing)染缸(gang)中易(yi)形成沉淀,在(zai)(zai)堿性(xing)(xing)染液中具有保護性(xing)(xing)膠(jiao)體的(de)(de)作用(yong),以及(ji)對鈣、鎂等金屬(shu)離子有明(ming)顯的(de)(de)絡合(he)作用(yong),因此紡織(zhi)前(qian)處(chu)理助劑(ji)極適合(he)用(yong)于還原(yuan)染料棉織(zhi)物的(de)(de)染色中。

  紡織印染廠對要求零庫存、快交貨,看似很科學,其實過于嚴酷,由于各生產廠家都有各自的強項產品,而多數印染助劑生產廠家又很難靠近紡織印染廠,加上印染助劑生產的時間性,印染廠準備一周的庫存用量是必要的、也是合理的科學的。