Quality Control Function of Textile Materials
For textile materials, quality is of prime importance in any aspect of its’ business. Customers demand and expect value for money. As producers of apparel there must be a constant endeavor to produce work of good quality.
Quality Control Function of Textile Materials
- Test Properties of Yarn
a)If routine checks are carried out on yarn choose a delivery of average Tex (count, denier).
b)If incoming yarn is not checked then check the Tex (count, denier) of the delivery intended for samples and only use if it is within acceptable limits.
c)Carry out other appropriate tests on yarn e.g. crimp nylon-Crimp Rigidity test. Knit a small sample and check that dye is fast to light, washing and perspiration etc.
d)Record details of yarn type, supplier, Tex (denier, count) etc. and pass information to knitting room.
- Knitting Specification
a)Record all details required to produce the fabric or garment blanks including chain set out, stitch length and any instrument measurements.
b)Record all details of making the trimmings.
c)Note any difficulties encountered e.g. stitch pattern causing occasional drop stitches. Pass information to making-up room.
- Making-up Specification
a)Record all details of making-up, including the type and count of the sewing thread, and the order of seaming the parts.
b)Note any difficulties encountered e.g. difficult operation to attach collar.
- Test for Physical Properties of Garments
a)Record the dimensions of the garment as soon as it is completed.
b)For a fibre of high moisture regain find the weight in correct condition.
c)Wash garment and recheck the measurements.
- Liaison of Quality Control with Cost Department
a)On completion, supply cost department with all information.
b)For the correct Tex (count, denier) of yarn, costing may be made directly on sample. For a count which is above or below the average (although within an acceptable tolerance) make an appropriate adjustment to yarn costs and weight.
c)Make an allowance for any anticipated extra difficulties, or a higher than normal rate of seconds.
- Subsequent Alteration
a)Make any necessary alterations required by firm or by buyers.
b)Record changes at each stage.
