Loose Paper, Loose Paper and Core Paper After Primary Bonding Reasons The Core Paper Sticks to the Lower Corrugating Roller Measure Consider using a wax stick to increase the lubrication of the core paper; check the cleaning conditions, wear conditions, and chrome coating consumption of the lower corrugating roll . Reduce the position of the paper guide roller at the exit so that the single-faced corrugated cardboard between the corrugating roller and the pressure roller nip point can more easily output the blistering conditions during operation. When the single-side machine runs at high speed, it is centered or crosses the paper in the single-sided paper web. A considerable portion of the face paper (in the case of the edge of the face paper) has a continuous, usually spherical, convex, unbonded area.
the reason
a. Insufficient heat visible white paste line
b. Inaccurate pressure roller in high
c. Wet lines on face paper and core paper
d. The tension between the paper and the core paper is inconsistent
e. The gelatinization temperature is too high
f. Crystal-like paste line visible when overheated
S. Pressure roller position adjustment inaccurate measures
a. Check the steam temperature, siphon tube, and steam quality in all pressure vessels b. Check the height of the pressure roller and adjust to the manufacturer's specifications c. Increase tension or wrap angle to increase face and core paper temperature d. Check for worn rollers due to improper use, check misaligned external equipment parts, and use adjustable tension rollers to ensure uniform tension e. Check the gelatinization temperature and adjust to the appropriate standard. Reducing the wrap angle on the tissue preheater and the core paper pretreater to increase the steam injection g. Rear pressure roll stand, check air pressure or hydraulic drive system for proper operation
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