Question 4

(a). Explain the following terms as used in the manufacturing of textiles:

1.  souring;
2.  singein;
3. printing;
4. knitting;
5. fabric finishing.

(b). State two advantages of using polyester as a curtain

(c). Differentiate between felt and laminated fabrics.

OBSERVATION

Question 4a i and ii was not answered very well, just few of the candidates did it well (what is scouring and singing); While the other questions in 4a was done well.

The expected answers are:

Scouring: It is the process of using hot soapy water to remove the natural grease and sweat from wool during the manufacturing of woollen fabric.

1. Singeing: It is the process of using flame to burn off protruding ends of fibres after a fabric has been manufactured. 


2. Printing: It is the process of adding colour and motifs to a fabric to make it attractive to consumers.

Note: If candidate’s answer ends at ‘fabric’ deduct ½ mark.



3. Knitting: It is the process of interlocking yarns into loops using special pins or machine.
   

4(b) Advantages of using polyester as curtain was done not too well by the candidates.

• It drapes well.
• It is strong and durable
• It can be easily laundered.
• It does not fade.
• It does not crease.

4(c) Difference between felt and laminated fabrics was not answered very well
The expected answers are:
Felt fabric: It is a fabric made by fusing together fibres (usually woollen fibres) by using heat, pressure and moisture.

Laminated fabric: It is a fabric produced from at least two layers of material held together by heat fusion, adhesive, stitching or chemical tacking.