Poor heat sealing?
Sealing dwelling time, sealing temperature or sealing blade clamping pressure and cooling conditions are to consider.
Q1: Too high film thickness variation or gauge incorrect?
A1: See "Solution of the blown film thickness variation too high"; follow the standard of B.U.R. as stated above.
Q2: Too high of sealing temperature?
A2: Decrease sealing temperature.
Q3: Too high or too low sealing pressure?
A3: Adjust sealing pressure properly; or optimize the choice of sealing knife.
Q4: Sealing temperature or dwelling time are not enough?
A4: Increase sealing temperature and dwelling time.
Q5: Polymer formulation issue
A5: Check again that the original polymer type, see if any incorrect blending.
Q6: Too much corona treatment?
A6: Decrease level of corona treatment at blown film plant.
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C.Y. Poor heat sealing? Introduction
Chuo Yii Enterprise Co. is Taiwan supplier and manufacturer in Foundry Industry. C.Y. has been offering our customers high quality Dual Lips Air Ring, Low Gauge Variation Air Ring, HDPE / LDPE / LLDPE / MDPE / PP / PVC / PLA Air Ring, Mono-Layer & Multi-Layer (1 / 2 / 3 / 5 / 6 / 7 Layer) Die Heads, IBC System, Down-Stream Air Ring, PLA Die Head, Rotary Mechanism, Manual and Auto Screen Changer, Central Column & Stabilizing Ring, Heat Sealing Blade, Aluminum Sand Casting Foundry OEM since 2009. With both advanced technology and 20 years experience, C.Y. always make sure to meet each customer's demand.