수세, 탈수 및 건조공정의 합리화

염색가공공정에는 섬유로부터 불필요한 것을 제거하는 공정과 섬유상에 필요한 것을 부착시키는 공정으로 나눌 수 있는데, 실제적으로 전자는 경시해오고 있는 실정이었다. 그러나 전자의 공정이 후자 공정의 확실성을 결정함에 중요한 영향을 미치므로 경시할 수 없는 공정이다. 이런 면에서 전 염색가공공정의 확실성을 향상시키며 나아가서 코스트 다운의 여지도 ..

수산화나트륨과 액체암모니아 처리에 의한 염색된 면직물의 넵 위장방법

직물의 결점중 넵은 염색된 후에라도 그 주변 직물과의 염색성 차이로 인하여 더욱 눈에 잘 띄게 된다. 본고에서는 직접염료로 염색된 면직물에 존재하는 넵을 수산화나트륨과 액체암모니아를 사용하여 여러가지 조건을 변화시켜 가면서 머서화처리를 함으로써 색상변화가 일어나지 않으면서도 이러한 면직물의 결점을 위장할 수 있는 방법을 제시하고 있다.

용수중의 잔류염소가 반응성 염료로 염색한 면직물의 변퇴색에 미치는 영향

1900년대 이후 상수도용 살균제로써 염소가 많이 사용되고 있으며, 그 사용농도는 현재 1mg/l 에서 16mg/l정도이다. 본고에서는 반응성 염료로 염색된 면직물의 세탁시 용수중에 포함되어 있는 잔류염소의 양이 면직물의 변퇴색에 미치는 영향을 알아보기 위하여 용수중에 포함되어 있는 염소의 양을 변화시켜 가면서, 일부 반응성 염료로 염색한 면직물의 세탁견뢰..

Purification and Recovery of Wastewater From Dyeing and Printing Mills.

The F40 company, a dyeing and printing plant located near Cono. Italy, has constructed a complex wastewater treatment facility. The treatments system purifies effluents to levels suitable for direct discharge into the environment. The exclusively biological treatment method totally eliminates dyes, ammonia, and organic nitrogen in the was..

Critical Review of the Treatments for Decolorization of Textile Effluent.

Stringent environmental legislation has stimulated efforts to remove color from dyehouse effluent. Some dyes are of synthetic origin and resist degradation by conventional waste treatment methods. These dyes exhibit stability to light, oxidzing agents, and aerobic digestion. The primary decolorization methods developed during the past 20 ..

Study on the Kinetics of the Removal of a Product Containing Surfactants in a Biological System of Activated Sludge.

The degradability of organic substrates provides the basis for a method used by Ecologica Aqqlicata to determine the capacity for removal of a chemical formula containing surfactants by a biological system of activated sludge. To test its method, Ecologica Applicata conducted batch trials to evaluate the degradability of a proportional mi..

Getting the Payback from Wastewater Investment.

Aratex Services, an industrial laundry in Portland, Oregon, invested $1 million in a wastewater treatment system. The system, which processes 240,000 gallons of wastewater per day, effectively eliminates solvents, lead, and nonpolar fats, oils, and greases from its discharge stream. The system puts the facility in compliance with the revi..

Environmental Protection Agency (EPA) Proposes Doubling of Toxics Release Inventory (TRI) List.

The EPA recently proposed to double the TRI by adding 313 chemicals to the list, 170 of which are active ingredients in pesticides. EPA administrator Carol Browner says that the proposal represents the largest expansion of the TRI list since its inception in 1989. Government analysts estimate the additional compliance cost at $155 million..

Treatment of Effluent to Control Pollution in Textile Mills.

Compliance with environmental regulations regarding effluents is often a complex and costly affair for textile mills. A simple and economic method of reducing wastewater volume uses a combined treatment of all effluents by screening them in an equalization tank. The process includes skimming and scraping through a clarifier and cleaning e..

Importance of Testing of Textiles to Eco-Standard Specifications.

The German textile industry has identified more than 8,000 chemicals that are regularly used for the production and processing of fabrics. The textile industry is voluntarily advocating eco-standards, which encourage consumers to buy environmentally friendly products. Two types of eco-standard labels are planned for textile products sold ..