Date:2019/5/24 16:09:45 Number of visits:
Reasons for the unqualified quality of Ningbo buttonhole elastic band and preventive measures
Ningbo buttonhole elastic belt factory has strict control measures on the quality of finished webbing. The reasons for the unqualified quality of webbing and the preventive measures will solve some quality problems encountered in the production process. Combining the actual experience of webbing production, I believe that Products that satisfy customers are not a problem.
One bend
Reason for formation:
1. Uneven wear of steel buckles
2, the head of the yarn is not flat
3. The position of the steel buckle is wrong.
4, the yarn joining method is wrong
Precaution:
1, the steel buckle wearing method must be according to the formal wear method, 1 group or 2 groups wear the law.
2. Pull the larger, looser side off until it is as flat as 1-5 turns on the other side.
3, the steel buckle is generally the distance from the needle, there is a steel buckle empty distance.
4, according to the needs of the ribbon, divided into upper and lower layers, or points, left and right, generally have to be divided into up and down, if there are more than two practices or lines on a belt, they must be separated.
Two waves
Reason for formation:
1. The steel buckle is unevenly threaded, and there are too many yarns on both sides, and too little is worn in the middle.
2. The steel buckle is too large to wear, and the weft yarn is too tight.
3, the disk is not flat, the two sides are pulled tight, the middle is too loose.
4, the yarn joining method is wrong, the balance of the pressure is not good.
Precaution:
1. Use standard steel buckles and wear them in groups of 1 or 2.
2, according to the width of the ribbon, then choose the steel buckle to wear.
3. Change the middle and the sides of the yarn for a few, or pull the middle to loosen some.
4, according to the weaving practice needs to pick up, balance the number of presses and the number of pressure average.
