Shanghai Daoqin Plastics Co., Ltd.

实际 upper 熔喷布 production complex, generate issues non is temperature degree, gas pressure, mold, material, speed and other factors 引起, therefore need abrasion combined and debugging equipment and process, can make product to most 佳效果. lower for 熔喷布 七 Common defect 展开 谈:

1, 晶点

generate mechanism:

a, gas speed degree small or melt viscosity high, separation melt fine filament full 牵伸;

b, melt viscosity small, gas speed degree high 时, filament for melt function decrease low, melt also has by formed fiber 便脱离喷 filament 孔.

solution countermeasures:

a, according to material MFI rise temperature or drop temperature;

b, adjustment screw speed;

c, selection combined 适 模头 and filament MFI material.  

2, 飞絮 

generate mechanism: raw materials and versus 应 纺 filament temperature degree has very good 匹配, temperature degree relatively high 致.

solution countermeasures:

a, is full wide 幅飞絮, can adjustment screw filament temperature degree and hot temperature degree;

b, is property 飞絮, can adjustment versus 应区位 模头 temperature degree.

3, 布脆, hard

generate mechanism: melt by formed fiber or more fiber viscous formed 团导致熔喷布脆, hard.

solution countermeasures:

a, adjustment hot gas gas pressure;

b, adjustment temperature degree;

c, decrease/reduce material amount;

d, adjustment or and filament 孔 距离.  

4, 堵孔

generate mechanism: generally main/primary is is masterbatch add more, machine separation more, material has 杂质以 and add 滤网造 formed.

solution countermeasures:

a, decrease/reduce masterbatch add amount;

b, increase 滤网;

c, selection dry raw materials;

d, and more 换 滤网.

5, filament 不均

generate mechanism: filament retardant force or gas large small 不一导致各孔 喷 filament amount 不一样.

solution countermeasures:

a, selection filament pressure precision and filament sheet/plate;

b, and more 换 滤网;

c, 定期清洗喷 filament sheet/plate;

d, decrease/reduce masterbatch add amount.

6, gas 孔

generate mechanism: material water separation content high, in filament process in water gas 喷溅而 generate gas 孔.

solution countermeasures: for material 进行烘 dry 处理.

7, efficiency low

generate mechanism:

a, fiber relatively coarse 且间隙 large;

b, add masterbatch or add 不够;

c, 未进行 electrical 晕处理 or 处理不够.

solution countermeasures:

a, rise high temperature degree;

b, adjustment 布 接收距离;

c, decrease/reduce material amount;

d, add large gas pressure;

f, add large masterbatch content;

e, electrical 晕处理.