Problem & Solution

Practical answers to common plastic material challenges

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Q

Uneven Winding Tension

A

This problem is a typical manifestation of uneven winding tension in melt spinning. The core of the solution lies in the precise stability of the spinning temperature, the high-precision control of metering supply, and the optimized maintenance of the spinneret/cooling air field. It is recommende...

Extrusion & Post winding tensiontaper curvefriction roller maintenanceguide roller resistancetension control

Q

Rough Surface/Orange Peel Filament

A

This problem is a typical manifestation of rough surface/orange peel filament in melt spinning. The core of the solution lies in the precise stability of the spinning temperature, the high-precision control of metering supply, and the optimized maintenance of the spinneret/cooling air field. It i...

Extrusion & Post spinneret clogginggel particlespre-filtrationtriethylene glycol cleaningcomponent maintenance

Q

Stiff Filament/Hard Filament

A

The essence of stiff filament is that local over-drawing or over-crystallization causes the fiber to lose its normal elastic recovery ability. The core of the solution is "stabilizing drawing + preventing over-crystallization": ensure precise matching of the guide roller speeds to eliminate local...

Extrusion & Post pulling slippagepulling roller wearclamping pressuretransmission systemdimensional fluctuation

Q

Filament Sticking

A

The essence of filament sticking is that adjacent individual filaments fail to be fully cooled and separated after exiting the spinneret holes. The core of the solution is "increasing spacing + strengthening cooling + adjusting oil agent": appropriately increase the spinneret hole spacing to redu...

Extrusion & Post filament sticking adhesionspinneret hole spacingcooling air volumeoil agent concentrationhole outlet expansion

Q

Uneven Individual Filament Thickness/Denier Fluctuation

A

The essence of denier fluctuation is that instability of the melt extrusion amount or winding speed causes the fiber cross-sectional area to change along the length direction. The core of the solution is "stabilizing flow + stabilizing speed": use a high-precision metering pump to stabilize the m...

Extrusion & Post denier fluctuationmetering pump accuracymelt temperaturespinneret maintenancewinding speed

Q

Fuzz/Fuzzing

A

The essence of fuzz is that the fibrils on the fiber surface peel off and break due to excessive friction or local stress concentration. The core of the solution is "reducing friction + maintaining smoothness": ensure sufficient and uniform oiling to reduce friction between fibers, regularly chec...

Extrusion & Post roller surface wearhard impuritiesnatural wearroller surface protectionmetal detection

Q

Dust Accumulation in the Oven Falling and Causing Pitting on the Coating Surface

A

This problem is a typical manifestation of dust accumulation in the oven falling and causing pitting on the coating surface in coating forming. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating liquid, and precisely con...

Extrusion & Post curing oventemperature sensorhot air circulationair speed distributionline speed matching

Q

Sudden Increase in Coating Defects After Coating Line Speed Increase

A

This problem is a typical manifestation of sudden increase in coating defects after coating line speed increase in coating forming. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating liquid, and precisely controlling the...

Extrusion & Post incomplete curingcuring temperaturecuring timecuring agent ratioUV lamp

Q

Unstable Coating Amount (Fluctuation Over ±5%)

A

This problem is a typical manifestation of unstable coating amount (fluctuation over ±5%) in coating forming. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating liquid, and precisely controlling the curing process condit...

Extrusion & Post coating gap driftthermal expansionequipment temperature riselow-expansion materialclosed-loop adjustment

Q

Coating Hardness Fluctuation

A

This problem is a typical manifestation of coating hardness fluctuation in coating forming. The core of the solution lies in ensuring the substrate surface condition, optimizing the rheological properties of the coating liquid, and precisely controlling the curing process conditions. It is recomm...

Extrusion & Post incomplete curingcuring temperaturecuring timecuring agent ratioUV lamp

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