Fabric is the raw material for daily necessities and industrial products such as clothing. As one of the three elements of clothing, fabrics not only interpret the style and characteristics of clothing, but also good fabrics play an important role in the production of clothing, so the fabric for theinspection of goodsand testing is necessary. So how should the fabricinspection of goodsWhat, this article will give you a detailed introductionCriteria for fabric inspectionand workflow.
I. Fabric Inspection Methods
The common test methods for fabrics are"four-point scale". In this"four-point scale"The maximum rating for any single blemish is four points. Regardless of the number of blemishes present in the cloth, each straight line yardage performed on it(Linear yard)No blemish score shall exceed four points.
For warp, weft and other direction defects the following criteria will be used to assess the defect score:
one point: The length of the blemish is3inches or less than3 a unit of length
dichotomous: Blemish length greater than3an inch or less6 a unit of length
somewhat: Blemish length greater than6an inch or less9 a unit of length
the equinox: Blemish length greater than9a unit of length
For severe blemishes, each yard of blemish will be rated four points. For example: All holes will be rated a four regardless of diameter.
For continuous defects such as: Cloths with cross-grades, edge-to-edge color differences, narrow seals or irregular cloth widths, creases, uneven dyeing, etc., shall be rated four points per yard of defects.
No more than four points may be scored for each yard of defects.
Second, the inspection points and standards of the fabric
Inspection Points:
Specifically need to check the appearance of the fabric, weight, density, feel, pattern, color, width, length, weft slant or weft arc and so on.
Test Criteria:
1. The fabric and lining of all kinds of finished products should not have picking, breakage, holes or serious weaving defects affecting the wearing effect, such as thick and young yarns, missing yarns, yarn knots, miscellaneous colors of yarns and edges of cloth/pinholes;
2. The texture of all kinds of fabrics including composition, feel, luster, fabric organization, etc., pattern and printing position, size, color, density should be consistent with the sample requirements;
3. All kinds of fabrics and lining materials should not have oil stains, rust stains, color stains, watermarks, offset prints, chalk prints and other kinds of stains.
4. Knitted fabrics should not have uneven surface texture, and there should be no yarn joints on the surface;
Three,Fabric inspectionworkflows
1. Determine the number of inspections: Determine the number of inspections according to customer requirements;
2. Selection of inspection package or roll number: The inspector may randomly draw fabrics to be inspected according to the fabric mill's detailed code list, which must cover all colors. Determine the number of each color to be inspected according to the percentage of the lot of fabric each color accounts for;
3. Fabric quantity check: check whether the actual quantity matches the supplier's detailed yardage list, the in-package yardage list and the marked yardage of the fabric rolls;
4. Check the color and feel of the fabric: check whether the color and feel of the fabric is the same as the color sample and quality sample of the fabric confirmed by the customer;
5. Check the width of the fabric: Measure the actual width of the head, middle and tail of the fabric, the width of the fabric should be in accordance with the requirements of the order;
6. Check the color check: check whether there is any deviation of the cloth color between the two sides and the middle of the cloth. The fabric must not have front and back color difference, left and right color difference and color flower. Check whether the color and handfeel of the fabric is the same as the color sample and quality sample of the fabric confirmed by the customer; the color difference must not be less than 4 levels or the standard required by the customer, and the difference between pi and pi must be more than 4 levels;
7. Inspection of defects, inspection on the fabric inspection machine, the speed of the cloth should be appropriate, generally enough to see the principle. Unsuitable speed will affect the accuracy of the inspection. Only visible defects that affect the processing of the garment and the appearance of the garment should be deducted from the inspection. Record the inspection at the same time.
8. Fabric surface inspection, found defects, the color line should be made obvious signs, in order to cut the material at any time found. If the batch of fabric is unqualified and need to be returned, it is also convenient to explain to the fabric factory the status of the defects and the reason for return, and make a record of demerit points;
9. Count the number of unqualified rolls of cloth, after the completion of all inspections, count the number of defects and determine whether it is qualified.
Fabric inspection is a key component in safeguarding textile quality, safety and business interests. Through rigorous goods inspection, companies can reduce the risk of avoiding returns and legal disputes caused by quality problems, improve efficiency, and minimize production interruptions and cost wastage. For fabric brand owners, traders or manufacturers, entrusting professionalthird party inspectionfirmsInspection Online, is the key to ensuring the quality of the fabric.