Download PDF by Wolfgang D. Schindler, Peter J. Hauser: Chemical Finishing of Textiles

By Wolfgang D. Schindler, Peter J. Hauser

ISBN-10: 084932825X

ISBN-13: 9780849328251

With approximately twenty types of chemical finishes and a number of other thousand completing brokers, chemical completing pros require a high-quality foundation of cloth chemical wisdom and technical knowing, in addition to a few functional adventure. Chemical completing of Textiles fulfills this want by way of describing the entire very important different types of chemical finishers and emphasizing the basics instead of particular recipe and strategy proposals. It covers the benefits and downsides, program stipulations, compatibility and combinability, checking out tools, and functional information of each vital kind of chemical end. The textual content can pay specific recognition to the interaction among chemical buildings and the consequences of completing items.

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Additional resources for Chemical Finishing of Textiles

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Reverse or transfer coating follows a contrasting order of the layers. It is used when the textile component does not have enough dimensional stability or has a structure which is too open for the direct coating process. Therefore a support foil, called release paper is used, first coated with the finish layer, then with the main layer, followed by the tie coat and at last the textile, for example, a knit-wear or a thin non-woven. Every coat step needs a short pregelation. After the final heating and end-gelation the release paper is separated.

Volatility: Some softeners are volatile or contain volatile components. During drying, heatsetting or curing these volatile components can condense on cooler areas of the ovens and then drop back onto the fabric, causing spots. Heating the top of the ovens can help prevent this problem. Yellowing: This problem arises especially with undyed fabrics. 6 Dispersing agents and product selection are then helpful. Mechanical softening: Softening effects can be gained on some fabrics without chemicals, only by mechanical treatment, for example washing or in a tumbler or with high pressure water jets.

As the hand of fabrics is primarily a subjective feeling – similar to the impression of colour – there have been many efforts to find methods for objective evaluation of the fabric hand. While instrumental colour measurement is very common in textile quality control, the automated measurement of fabric hand is still a topic of discussion and subjective manual hand evaluation is still the most important method. 18 In some textile production laboratories single reference standards or a simple set of hand standards with different hand values is used.

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Chemical Finishing of Textiles by Wolfgang D. Schindler, Peter J. Hauser

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