Mao Knitting Factory Quality Control Practice Guide

one.   Batch production  
1. After the development department receives the <Publication Notice> from the sales department, the head of the development department invites the QA supervisor and QE to participate in the trial production of the batch.
2. .QE According to different products, different production process diagrams are designed, and each key quality control point is planned on the flow chart, which is recorded in the <Batch Making Notice>.
3. QE designs different testing methods and standards according to different products, and records them in the <Batch Making Notice>.
4. At the same time, QE should also record the problems that are easy to appear in each shirt and the matters needing attention during production in the <Batch Making Notice>.
5. The QA Supervisor will work with the sales department to discuss the quality standards with the guests. After obtaining the consensus, the QA supervisor will sign the record on the <Batch Production Notice>.
two.   Production of manufacturing orders  
1. The salesperson of the sales department prepares the manufacturing order according to the latest guest information and the <production preparation notice signed by the QA supervisor.
2. The production order includes: date of preparation, customer name, item number, product description, graphic, delivery date, quantity, color, code number, size table, hoe, production process, packaging method and quality control Point flow chart, testing methods and standards, problems that are easy to occur and matters needing attention in the workshop, color version and auxiliary material version (material card).
3. After the manufacturing QA supervisor has verified the correctness, it will be signed and distributed to the heads of various departments of the production department.
three.   PP   Version production  
1. According to the production and manufacturing orders, the heads of various departments of the production department invite QE to participate in the PP version of the production process.
2. During the trial production process, for the problems that are easy to occur, the supervisors of each department should find and record them on the production order in time, and consult with QE to seek improvement methods and make records.
3. QE collects the problems and countermeasures during the trial production process, submits them to the QA supervisor for confirmation, and the QA supervisor signs and distributes the MEMO to the heads of various production departments and QA.
four.   Large goods officially put into production  
1 Before each large cargo is officially put into production, the heads of various departments should first gather meetings of the personnel under their jurisdiction to explain the matters to be noted.
2   IQC   Perform the feed inspection procedure:  
a. Each cylinder yarn is woven against the color, the degree of cylinder difference and the degree of coarse hair/yarn
b. For other excipients, conduct full inspection or random inspection (using AQL sampling standards).
c. Resolutely reject unqualified products
3. Each worker is responsible for self-checking the first product he produces:
a. Have you made a mistake?
b. There are no wrong materials.
C. Product appearance quality.
d. The firmness of the product structure.
4. The supervisors of the production departments are responsible for inspecting the first products produced by the workers under their jurisdiction, identifying problems in a timely manner, and providing technical guidance to the workers.
5. IPQC performs the process inspection procedure, identifies/isolates the defective products, returns to the previous process, and records them.
a.   Check the woven film:  
A.1. Whether the code/weave/color and hair quality combination of the woven piece is consistent with the batch.
A.2. The length and weight of the single piece of fabric are in conformity with the requirements.
A.3. The length of the rib, whether the number of needles meets the requirements of the order.
A.4. The quality of the shirt: whether there is a single hair / hair / needle / blast / rotten edge / grease / knot / straight needle, horizontal thick hair, the length of the shirt is not the same.
b.   Check the seam:  
B.1. Whether the stitching hair is original.
B.2. Is there any color change at the inter-color?
B.3. There are seamless errors in the front and back frames.
B.4. Is the lower column and the body the same?
B.5. In addition to the pocket, the seams of each part can reach 130% tensile strength.
B.6. Quality of the seam: whether there is no leakage, wrong, horizontal, rotten, irregular suture (short duration), suture from the ear, suture whistle, jumper, straight line, bone The snake is in the position, the shirt is wrinkled along the stitching, and the alignment is not the same.
c.   Check the seams:  
C.1. Does the line color match the body color?
C.2. Does the pin count density meet the requirements of the order?
C.3. Is the car line secure?
C.4. Sewing quality: whether there is a jump stitch / broken line / falling pit / grease / bar line is bad and straight line is not straight / round up angle.
d.   Check the collision:  
D.1. Is the thread removal clean?
D.2. Whether there is a loose mouth.
D.3. Whether the sleeve mouth and shirt position are too loose or too tight.
D.4. Light-colored shirt with or without removing hair (to prevent washing and bleaching).
e. Lights: whether there are missing needles / holes / single hair / needle / jumper / knotted.

6.   Check the wash water:  
a. Soft and hard.
b. The color vividness of the sweater.
c. The degree of fluffing of the sweater (be careful to avoid excessive fluffing/felting and cannot be remedied).
d. Whether it sticks.
e. Whether there is odor

7.   Check the hot:  
a. Shirt type flat / stiff / correct / symmetrical / feel moderate.
b. The sweater is fully cooled and retracted to meet the requirements.
c. Quality of ironing: whether there is a mirror / snake / steam mark / twisted / hot yellow, wrinkled and leaky.

8. FQC executes the finished product inspection program
b. Initial investigation/review: whether there is any misuse of the garment, whether the garment has a bad mouth, whether there is any misplaced pattern, whether the shirt body has stains/stains/threads/hairs/threads/hairs/blast holes, etc. .
c.   Tail check:  
C.1. Whether the shirt type is correct/symmetric/flat.
C.2. There is a wireless head / stain / poor clothing.
9. QA performs quality control inspection procedures: On the various quality control points on the production process flow chart, the AQL standard is used to conduct random sampling and record, and the non-conforming products must be returned to the process unconditionally.
Fives   .   After sales service   :  
1. According to the customer's complaint, the QA supervisor organizes QA and QE to investigate the cause of the quality problem, study and improve the method, and record the archive.
2. According to the data provided by the quality statistician, the QA supervisor has developed a new quality control plan, constantly improving the quality control system to avoid repeated occurrences of the same quality problems.
3. QA supervisors promote the quality control training program for all employees in a timely manner to improve the quality of all employees.

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