Scarf Test Items and Quality Standards
HANGZHOU OHSCARF GARMENT CO., LTD
VER1.0
Ohscarf is committed to providing consistent and high standards of quality in all its products. To guarantee a positive customer experienceand avoid potential order disputes, it is important to emphasize the overall product quality factor.
The purpose of this document is to share Ohscarf's quality standards with our customers. Briefly explain what aspects will affect the qualityof scarf products and how we control product quality.
Scarf Test Items and Quality Standards Overview
| Test Items |
Quality Standard |
Treatment for Unqualified Scarf |
| Component |
The fabric composition of bulk scarves must be the same as the sample. |
Mark as defective ones. |
| Hand Feeling |
No difference or slight difference in feel between the bulk order scarf and the confirmed scarf sample. |
Add additives to rewash and refurbish, if rewashing is not possible or ineffective, mark as defective ones. |
| Actual Size |
Must be within ±2.5cm of the scarf sample size. |
Marked as unqualified for size not up to standard. |
| Appearance |
No blocks, irremovable dirt, stains, holes, uneven colors, etc. |
Such problems cannot be repaired, all marked as unqualified |
| Weft Skew |
Acceptable range：within 5%. |
Re-adjust the weft, if it cannot be improved, cut out the fabric that can be used to make a scarf, and mark the unusable fabric as defective ones. |
| Edge Finishing |
No skip stitch, loose stitches, uneven stitch, pucker seam, thread breakage and etc. |
Refurbish the hemming, for fabrics that are too thin to be reworked, mark them as defective ones. |
| Weight |
The weight of bulk scarf must not exceed -5% to +7% of the sample scarf weight. |
Mark as defective ones. |
| Smell |
No peculiar smell (except some scarves may have a slight sour smell). |
Mark as defective ones. |
| Color Difference |
Bulk scarf colour difference with the scarf sample shall not exceed 10%.
No more than 5% colour difference between different roll of fabrics in the same batch of scarves.
No more than 2 kinds of different colour difference in same batch of scarves. |
Mark as defective ones. |
| Packs & Adds |
Ensure that each scarf is packed according to the agreed standard without any missing or wrong trimmings and accesories. |
Correct and Repack. |
Amount of Scarves Inspected
When the total number of large goods is less than 1000, 30% will be randomly selected.
When the total number of large goods 1000 to 5000, at least 20% of the total number of scarves will be inspected.
If the total number of scarves is over 5,000, at least 10% of the total number of scarves will be inspected.
The scarves to be inspected must include all different colours or patterns and the number of scarves in different colours or patterns will be drawn in proportion to the total number.
Specific Criteria for Scarf Inspection
The quality inspection of scarves is carried out on a fabric inspection machine with an overhead fluorescent light source (fluorescent lamp,colour temperature 6500k) and a speed of 20+-5 yards/minute, or on a 0.95m high, 3m+ long inspectiontable in natural light, with one person inspecting the fabric if its width less than 110cm, and two people inspecting if it exceeds that.
Component
The component, thickness, yarn count and texture of the scarf fabric should be the same as the sample scarf fabric.
Hand Feeling
Compare the softness, thickness and smoothness of bulk scarf with confirmed sample. If there is a significant difference, the fabric should be improved by rewashing and adding auxiliaries, if there is still a significant difference after that, mark as defective ones.
Actual Size
Measure the distance between the edges of the scarf, in both warp and weft directions, after ironing the scarf flat and laying it flat.
Iron the scarf and lay it flat. Measure the distance between the sides of the scarf. If the difference between the size of the scarf and the confirmed scarf sample is greater than 2.5cm, mark it as defective one.
Appearance
Each scarf must not have the following common problems
1, Holes in fabric:
The fabric is severely wound by the machine during the washing process, resulting in holes
2, Dirt
Contaminated by lubricants on printing machines or sewing machines.
3, Stains
When printing, the ink on the surface of the fabric is not fully absorbed and stains the fabric when it is rolled, staining is particularly likely to occur on thin fabrics.
4, Irremovable Wrinkles
The fabric is not laid flat when passing through the steamer, resulting in wrinkles, and creases are formed after high-temperature steaming, which is unable to be removed.
5, Blocked
The fabric has wrinkles during the printing process or there are excess threads on the fabric, making this part covered and unable to be printed.
6, Uneven Color
The nozzle of the printing machine is blocked, causing the ink to be sprayed out evenly, or the fabric is not evenly sized.
7, Blurred Patterns
Because the nozzle of the printing machine is blocked or there is a problem with the sizing on fabric.
8, Snagging
One or more threads on the fabric are snagged by sharp objects, nails, etc., causing the pattern on this thread to be misplaced.
9, Slippage
Due to the addition of excessive softener, the fabric structure is loose, and a little force will cause the fabric structure to deform.
Learn more about common problems with fabric printing and appearance.
Weft Skew
What is weft skew?
The raw fabric is in a state of tilt or twist that not visible to the naked eye when sizing, and not easily detected when printing. When cutting the printed fabric, it is found that the scarf weft border is not at the same level and after the scarf hemming finished, the weft sides of the scarf is usually curved or tilted.
A slight weft skew does not affect the straightness of the scarf edge especially when it is hand rolled, the hemming workers can do correcting while hemming, in the case of severe weft skew, the smaller the size of the scarf, the more likely the weft edge is to be noticeably twisted.
How a weft skew scarf looks like?
Obvious uneven crooked hemming edge and deformed corner.
Measurement of the degree of weft skew
Find the highest point of a curved or skewed weft yarn on the fabric and measure the distance from that point to the vertical horizontal line.
Calculation method: Degree%= ValueA ÷ Fabric Width × 100%
Acceptable range:
Fabrics with a maximum skew of more than 5% are unqualified. Usually weft skew can be repaired, but if there are weft skews with inconsistent directions in one roll of fabric, it cannot be repaired. We only can cut out the usable part to make scarves, and the rest are marked as defective ones.
Common Hemming Problems
Skipped stitch or slipped stitch
Broken thread
Double seam
Pucker seam
Loose stitch
Uneven stitch
Scarves with the above suture problems need to remove the original sutures and re-curl. If the scarf fabric is too thin and cannot be removed, it is unqualified.
Learn more about more common problems with hemming.
Weight
A piece of fabric is taken from each scarf fabric using a round cutter and weighed in GSM.
Acceptance range:
The deviation of the result is within the range of -5% to +7% to be accepted, otherwise the scarf fabric is unqualified.
Fabric Smell
For silk fabrics, sodium carbonate must be added in the process of silk degumming, but in order to meet the pH standard of silk products, acetic acid or citric acid will be added in the later pass to neutralize the pH value of silk.
Other fabrics may also have a sour smell, because the printing dyes used are acid dyes, which will retain a slight sour smell, but it has no effect on the human body, the smell will disappear after few times of washing and drying, other unpleasant odors except light sour smell are unqualified.
Color Difference
The main reasons for colour difference in printed fabrics are:
Different batches of fabrics and different batches of sizing, resulting in different absorption of the ink by the fabric.
The influence of humidity and temperature, resulting in differences in the colour saturation.
When it is necessary to rush the order, multiple printing machines will be used at the same time, but different printing equipment ink control and curve are different, resulting in differences in colour.
If it is screen printing, different forces when squeegeeing will also affect the absorption of ink, resulting in colour differences.
In most cases, there will be no colour difference between the same batch of scarves, but there will be slight colour differences with different batches.
Color difference testing methods:
Normally, we rely on visual inspection by cutting ( fabric width cm x 15 cm) of the front and end of each scarf to compare the colour difference.
Acceptable colour differences:
There are inevitable colour differences in printed fabrics, generally subtle color differences are within the acceptable range, while obvious different tone, or dark / light colors are unqualified, see following example.
Packaging
The packaging of the scarf is according to the method specified by the customer, such as the size of the scarf ironing, whether it needs to be packed in a box, if the customer does not specify, it will be carried out according to our conventional packaging method, and at the same time ensure that there are no missing accessories including labels, hangtags, etc.
