Learning objective
Detailed knowledge of the chemicals involved and methods of application is not expected.
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The use of finishes
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The use of finishes
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Quick explanation
Detailed knowledge of the chemicals involved and methods of application is not expected
- This point belongs to The use of finishes, especially The use of finishes.
- You need to be able to detailed knowledge of the chemicals involved and methods of application is not expected.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
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This objective helps connect The use of finishes to exam-style questions, flashcards, and revision notes for The use of finishes.
Quick student answer
Which of the following finishes is commonly used to make fabrics water-resistant?
Direct answer
Acrylic coating is a common finish applied to fabrics to enhance their water resistance.
Key terms
- Hydrophilic finish: A finish that attracts water, helping to draw moisture away from the skin.
- Breathable coating: A finish that allows air to pass through the fabric while preventing water from entering.
Common trap
Confusing finishes with fabric types: Remember that finishes are treatments applied to fabrics to enhance or alter their properties, while fabric types refer to the material composition.
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Related learning objectives
- Fabric finishes The effects of finishes and the reasons they are needed in relation to: • the fibre/fabric properties • end use of the product.
The use of finishes
- Mechanical finishes A range of mechanical finishes, including: • brushing/raising • calendaring • embossing • heat setting using thermoplastic fibres to give permanent pleats or crinkles and make fabric non-crease and non-shrink • stone and sand washing.
The use of finishes
- Understand how the physical characteristics of fabrics can be modified by using mechanical finishes, eg trapped air acts as an insulator, air supports combustion, smooth fabric reflect light better than those with texture. 22 Visit aqa.org.uk/7562 for the most up-to-date specification, resources, support and administration Chemical finishes A range of chemical finishes, including: • mercerisation • flame retardancy, eg Proban ® and Pytovatex® used on cotton fabrics • water resistance • non-iron/crease resistance, eg Teflon • shrink resistance and anti felting • moth proofing • anti-pilling • hygienic (sanitised).
The use of finishes
- Understand how the physical characteristics of fabrics can be modified by applying chemical finishes.
The use of finishes
- Laminating as a finishing process That a laminated fabric is a membrane system made up of two or more layers, and the principles behind how laminated fabrics work.
The use of finishes