Printing and dyeing factory for quality issues

Dyeing plants have quality problems almost every day, even if a well-managed dyeing factory is no exception. Because the current printing and dyeing plants are small-batch, multi-variety production, the sources of grey fabrics are also very Complex, there are many factors such as the supply of dyes, water, electricity, and steam, processes, equipment and operations, and the quality requirements of end customers are also different. Differently, there are too many factors that affect product quality, and it is difficult to avoid various problems. The key is to handle it timely and properly. The printing and dyeing factory has scheduling meetings almost every day (or “meeting the meeting”) to find solutions to the problems that occur at the first time, not affecting the quality and delivery date of finished products as much as possible, and minimizing the impact. With regard to the problems of the printing and dyeing factories themselves, the factory can solve the problems without having to notify the customers, and if major problems occur, the printing and dyeing factories must take the initiative to face and negotiate with the customers.

1. The quality of the grey fabric

The fabric quality problem mentioned here refers to the order involved in the processing of the blanks. The printing and dyeing factory found that the billet from the customer has quality problems and usually reports its own customers for the first time. The quality of the grey cloths belonging to the printing and dyeing plant package blanks should be solved by the printing and dyeing plants themselves.

During the inspection of grey fabrics , it was found that the fabric surface had serious flaws. After the billet was in the semi-finished product stage, it might be found that the quality of finished products was affected. The printing and dyeing plants generally requested confirmation from the customers. At this time, traders must react to the first time. To judge the size and severity of problems raised by printing and dyeing factories, if relatively small issues can be recorded, it is necessary to seriously affect the quality of finished products. When dealing with serious fabric defects, suppliers of grey fabrics should be required to confirm inspections at the production sites of the printing and dyeing factories, or they must be required to bear additional processing losses, or to bear the cost of manual repair of the finished fabrics. Gray cloths that are not suitable for use should be required to be returned by blank suppliers or replaced by blanks.

2, the quality of printing and dyeing plants

Dyeing and finishing of textiles is a complex physical and chemical process. The general problems that occur in the production process should be handled by the quality management department of the printing and dyeing plant without reporting to the customer. However, the quality problems found during the inspection of finished products are often required. Negotiate with customers

(1) Problems related to the original color difference:

1About requesting customers to batch color (special release) Problem: In the dyeing process, the color difference between the individual color in an order and the customer confirmation sample in the dyeing process exceeds the allowable range, and the dyeing plant avoids returning to repair (or due to late delivery). (Rework) Sometimes the sample cloths are submitted to traders for processing: As a trader, it is necessary to make judgments. Sometimes it is also possible to invite customers to special release. After the customer weighs the pros and cons, a final decision will be made, but such exceptions can only be made occasionally. , not allowed to appear often.

2 on the color problem of paint: In order to achieve the standard color difference can be achieved, printing and dyeing plants usually use a small amount of paint color paste as a means of adjusting the color light. It should be noted that if the color difference is too large, it should not be used to add color paint paste repair method, or should use the original dye process (for example, the original is reactive dyeing, color correction is still active after the proofing process to determine the formulation and then color 〗 Rehabilitation in order to avoid introducing other quality problems: Some printing and dyeing factories with poor dyeing levels may use more paints to repair color. Special attention and caution should be paid to this situation.

3 pairs of color conditions: color we want to specify the light source conditions in the order, in the light source box on the tilt angle of 45 degrees on the sloping board color. If necessary, you can use a computer colorimeter to measure color. The color difference factory is generally required to be within two squares. It should be noted that the large samples just taken should be used in color matching as much as possible in an equilibrium state (the sample cloth can be quickly cooled and properly maintained, and the tide can be maintained in a tidal state).

4 on the protection of the standard swatches: Sometimes the printing and dyeing plant and the customer is controversial on the quality of the color of the sample as large as possible, the factory believes that the qualified sample cloth sent to the customer but can not pass the customer's inspection. Since all parties adhere to their own opinions, the two parties finally found out the reason for the dispute after researching together, which is often the result of different judgments caused by the color difference between the standard swatches used. The main reason is that the standard swatches of printing and dyeing factories are often repeatedly used for color and use in the production process (especially when the production of multiple copies is repeated). Under the touch of the atmosphere for a long time and the inadvertent touch of the user, the color gradation will gradually increase. The change produces a large difference in color between the swatches the customer saves in the office folder. Therefore, attention should be paid to the production of standard swatches (transparent film storage protection is not used when coloring is applied), and attention should be paid to the need to regularly check and replace the frequently used standard swatches to prevent misdirection due to the discoloration of the standard swatches. Machine operators and factories cause unnecessary quality loss.

(2) Processing of color difference in finished fabrics: In the inspection of the trading company's QC, it is sometimes found that the dyed or cloth surface that has been produced has a left-right color difference, which needs to be controlled according to the customer's situation (including (in the case of clothes) separately. If the left middle 5 color difference is relatively minor (more than 4 levels, but can not reach 4 -5 level), to record the record and ask the printing and dyeing plant to confirm after filing 1 file; for the more serious edge color difference should be the first time The dyeing factory put forward negotiations, if it is judged that the final customer cannot receive the goods, the factory shall arrange for immediate repairs.If the finished printing and dyeing products are sent to foreign garment factories for garments, the standards shall be strictly controlled, and products with serious cross-examination problems shall not be accepted. More difficult to handle quality claims overseas:

(3) Treatment of appearance defects: In the finished product inspection stage, especially during QC sampling inspection in the factory, it is often found that the external sound quality exceeds the customer acceptance criteria. If there is not much excess, the factory shall also be informed to confirm the filing and record the record. For manual repairs, manual repairs can be arranged immediately so that the repaired finished product can pass the QC inspection or IIS inspection. The defect in fabrics is particularly unacceptable due to the fact that the defects produced by printing and dyeing plants are severely exceeded (for example, there are many small color dots found on cloth weights), and the dyeing factory can only be required to arrange for repairs or re-expansion the first time. Make up processing.

(4) Lack of number and supplementary billet: In one order, there may be a shortage of delivery numbers for a certain color. If there is only a small number of missing orders, for example, less than 25%, it is recommended to pick a better one from the secondary cloth. To top up the number of shipments, of course, records should be filed for this type of situation (including the requirement to record the records of the dyeing plants.) If you still cannot get the number of deliveries, it is advisable to negotiate with the customer to reduce the number of shipments and try to avoid the production of blanks. Of course, in the last resort, it is still necessary to make up the billet processing, and the dyeing factory is required to fill up the shortage of goods at the fastest speed.

(5) Manually repairing fabric defects: Manually repairing finished fabrics is a normal practice of printing and dyeing plants, such as bleached fabrics, colored yarns on light-coloured objects, filaments on dark-coloured fabrics, broken yarns on burlap and Small holes and other yarn weaving 疵 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 还有 。 。 。 。 。 。 。 。 。 。 。 。. The cost of repairing fabrics shall be borne by the third party responsible (ie, by a grey fabric supplier or printing and dyeing plant), and as a trader, it shall also pay attention to this task for orders for self-purchasing grey fabrics to dyeing plants, and the manual repaired finished fabrics shall be reinspected by QC. Qualified people can be shipped to the customer.