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Fabric inspection is a crucial step when manufacturing clothing, and an important factor for QC.
Below are common 3 fabric defects details to look out during fabric inspection.
1.HORIZONTAL LINES
This fabric defect is defined by irregular lines that run from side to side.
Horizontal lines are generally caused by:
- Faults in the bobbin (the barrel used to hold yarn in place)
- Irregular thread tension
Causes and prevention of horizontal lines
Preventing the appearance of horizontal lines in fabric is quite straightforward. Regularly replace the bobbin and frequently check thread tension and positioning.
- SHADE VARIATION
One of the more obvious visual defects that can be found on raw textiles, shade variation is defined by a difference in depth of shade and color from roll to roll or piece to piece. Shade variation in fabric is caused by
- Mixing of fabrics used in production
- Variations in the production process with regard to time and speed
- Improper cutting, bundling and/or numbering
- Unequal fabric stretching
Causes and prevention of shade variation
Using the same base material and set of parameters for each production lot can effectively prevent shade variation.
When visiting a factory that manufactures raw textiles, it’s critical to ensure workers are only combining garments of the same color and not taking shortcuts when cutting and bundling. Properly numbering textile types prevents mistakenly combining cuts that vary in shade.
3.DIRT/STAINS
Stains are fairly common among dyed textiles and are defined as spots or patches of differing color. Textiles are never truly safe from stains because they can occur anytime during or after production if they’re not kept in an area with adequate protection.
Stains can appear on fabrics from just about any source. Dirt from the factory floor, oil from machinery and dyes are all known sources. Stains are relatively easy to identify and prevent so long as suppliers are vigilant about fabric quality.
Causes and prevention of dirt/stains
Your manufacturer can prevent stains during production by regularly cleaning production machines and equipment to ensure no random oils, grease or dyes make their way onto the textile.
Wrapping the finished rolls of fabric in plastic and storing them in a separate area away from the dying area can help avoid post-production stains.
To be continue…
