폐염액의 새로운 탈색기술

일본의 근제사는 반응성 염료를 사용시 배출되는 염색폐수의 탈색기술을 개발하여 금년 가을부터 플랜트 설비를 설치할 예정에 있다. 그 동안 반응성염료를 사용하여 염색할 경우에는 폐수의 탈색이 곤란하고 많은 비용이 소요되므로 비용을 절감시키는 탈색기술의 개발이 계속적으로 요구되어 왔다. 따라서, 이번에 새롭게 개발된 처리방법은 처리 시스템을 2단계로..

요소 회수 염색폐액 처리기술

일본의 동해염공은 염색폐액중의 요소를 75％ 정도 회수하므로써 지구환경에 우호적인 처리시스템을 개발하여 자사내에 적용함은 물론 다른 회사에 대해서도 판매를 계획하고 있다. 요소는 염료의 용해성 향상이나 흡습수분보지에 의한 염색성 향상에 특성을 갖고 있기 때문에 염색공정에서는 중요한 약품으로 면이나 레이온을 날염할 때 많은 양이 사용되지만 동시..

효소와 반응염료의 동시처리법

일본의 삼육사에서는 노보사가 개발한 셀룰로오스 분해효소인 셀쿠라스트 1.5L를 청바지의 바이오세탁과 면포의 태가공 용도를 위해 판매하였으나 최근에는 면포는 물론이고 각사에서 개발되고 있는 방축레이온 등의 직물표면의 잔털을 없애 필링을 방지시켜주는 용도로 그 수요를 확대시켜나가고 있다. 태의 개선에 이용하는 경우 지금까지는 직물이나 편물에 후가..

segregation: a method of textile wastewater treatment

at a cotton-mill in egypt, results of an analysis, carried out for component and composite waste effluent, showed that the bulk of pollution loads discharged comes from desizing and kiering operations. as an experiment, the highly polluted wastes were segregated and treated separately. factors affecting nutrient requirements were amoung t..

trickle irrigation using treated wastewaters

a trickling irrigation system was installed in a cotton field to study the effects on the clogging of the emitters using treated wastewater. also the effects of using reclaimed effluents on cotton yield and soil properties were studied under the the field conditions. in general the reduction in flow rate in the emitters along the lateral ..

chemical waste treatment processes for the printed circuit industry $em dash$ 2. specific treatments

part 2 of this article presents specific treatments for chemical wastes resulting from p/c manufacturing. a description of isx treatment of copper etching rinse waters and other copper complexes is followed by an isx case history report. also described are high ph-lime treatment of electroless copper plating rinse waters with a case histo..

padding of wet fabric by vacuum or transfer techniques

in processing, fabrics are usually dried before being padded in the reported experiments the possibilities of omitting this drying step were explored. several approaches, based on either transfer techniques or vacuum impregnation, were studied as means for padding wet fabrics. these experiments included application of resin finishes to we..

economical and reproducible method for dyeing 100 cotton and natural blend fabrics

this paper describes the pad/batch-beam wash off dye system which is an improved dyeing system for 100 cotton and the cotton portion of natural blend woven and knit fabrics that dramatically reduces energy, chemical and labor requirements, thereby providing lower costs. some of the advantages over conventional batch dyeing processes are s..

treatment of textile effluents by membrane separation processes

the advantages of membrane separation technology for the treatment and reuse of industrial effluents, particularly for closed loop recycle operation, are discussed. two pilot-plant application in the textile industry are outlined: high temperature ultrafiltration of desizing effluent for polymer size recovery and water reuse and hyperfilt..

energy demand in dyeing and finishing

this paper develops a method for monitoring energy demands from actual dyeing and finishing recipes. energy demand for polyester, nylon, acrylics, polyester/cotton and cotton was evaluated for more than 20 commercial dyeing and finishing processes. nylon and polyester were found to be the least energy-consuming fibers, followed closely by..