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POF热收缩膜又称多层共挤聚烯烃热收缩膜,它是将线性低密度聚乙烯作为中间层(LLDPE),共聚丙烯(PP)作为内、外层,通过五台挤出机塑化挤出,再经模头成型、膜泡吹胀等特殊工艺加工而成的。POF热收缩 莫具备欧盟环保要求。该种热收缩膜透明度高,收缩率稳定,耐寒性能优良(在低温环境下不易脆化)、使用过程中不会产生有害气体等特性。并且能保护被包装物品保持自然久放不变形,适合各种产品外包装。使用热收缩膜包装可以提高产品的档次,更能突显产品的高端大气上档次。


 


热收缩膜特性对比

比较项目

Compared item

POF

(环保)热收缩膜

PE

收缩膜

PVC

收缩膜

 

成本

Cost

比重0.92,厚度最薄0.012mm,实际单位成本较低.

Density 0.92,Minimum thickness 0.012mm,low cost

比重0.92,厚度最薄0.03mm,实际单位成本较高.

Density 0.92,Minimum thickness 0.03mm,high cost

比重1.4,厚度最薄0.02mm,实际单位成本较高.

Density 0.92,Minimum thickness 0.03mm,high cost

 

物理性能

Physical performance

薄而韧,厚度均匀,防潮性佳,质地柔软.抗拉伸强度高,耐撕裂强度大,收缩率可调.LLDPE存在,耐揉搓性好

Thin and tough,

Homogeneous thickness, 

Good moisture resistance,

High tensile strength,

Good tear resistance,

Adjustable thermal  shrinkage rate

Good rub resistance due to LLDPE

 

厚而韧,厚度均匀,防潮性佳,质地柔软.耐撕裂强度低于POF,但是远高于PVC,收缩率可调性差.耐揉搓性不如POF.

Thickness and tough,

Homogeneous thickness, 

Good moisture resistance,

High tensile strength,

Tear resistance is lower than POF but much higher than PVC

Bad adjustable thermal shrinkage rate

Lower Rub resistance 

 

厚而脆,厚薄不均,防潮性差,之地硬脆.强度低,耐揉搓性差.

Thickness and tough,

Inhomogeneous thickness, 

Bad moisture resistance,

Low tensile strength,

Low Rub resistance

 

耐寒性能

Cold resistance

耐寒性能极优,-50℃不硬不脆,不易破裂,可用于冷冻食品包装.

收缩包装后,-50--95℃被包装产品长期存放,稳定不变.有静电和防雾处理,不易污染灰尘,可保持产品清洁亮丽.

Excellent cold resistant ,

No embrittlement happen even under condition of -50,being used in  freeze food pack.

The products that packed with pof shrink film suit for long time preservation in temperature range

From -50 to 95 without any deformation

Through the electrostatic and

anti-fog handling to prevent dust contamination  for maintaining good product appearance.

 

耐寒性能优,冬天或冷冻后,不发硬,不脆化,因此运输不易破裂.有静电消除处理,不易染尘,可保持产品清洁.

Excellent cold resistant ,

No embrittlement happen even under freeze condition

No breakage in the transportation process 

Through the electrostatic and

anti-fog handling to prevent dust contamination  for maintaining good product appearance.

 

耐寒性极劣,冬天或冷冻后会发生脆化,因此运输中易破裂.收缩包装愈久愈紧,被包装物变形.无静电消除处理,易沾染灰尘,令产品污染模糊.

Bad cold resistance ,

Embrittlement happen even under freeze condition.

Easy to be fracture in transportation process.

The product packed by PVC can be gradually tightened as time going ,causing deformation problem.

Easy to get contaminated

 

加工性能

Process performance

加工过程不产生水分也不会粘着于封棒上,保养及作业容易.高韧性,平滑性及抗揉搓性使其适用于高速生产线自动包装.

No moisture caused in Processing procedures ,no adhesive to the seal bar, easy maintenance work.

Good toughness, smoothness, rub resistance suit for high speed packing production line 

加工过程不产生水分也不会粘着于封棒上,保养及作业容易.高韧性,平滑性及抗揉搓性使其适用于高速生产线自动包装.

No moisture caused in Processing procedures ,no adhesive to the seal bar, easy maintenance work.

Good toughness, smoothness, rub resistance suit for high speed packing production line 

加工过程会产生水分,易造成机械损坏,又易粘着于封棒上,作业不方便,保养困难.

Moisture caused in Processing procedures

Easy to adhesive to the seal bar to damage the packing machine

Inconvenience for equipment maintenance.

 

 

 

安全性

Safety performance

收缩包装后,封口处四角柔软,不会割伤人手,也耐揉搓.

After shrink, the seal position appear to be quick soft won’t cause any incised wood accident

收缩包装后,封口处四角柔软,不会割伤人手.

After shrink, the seal position can be quick soft won’t cause any incised wood accident

收缩包装后,封口处四角硬且尖锐,易割伤流血.

After shrink ,seal position can be sharp and hard ,easy to cause the incised wood accident.

 

环保卫生

Environment protection

无毒性,加工时不产生有毒气味,符合美国FDAUSDA标准

Nontoxic ,no poison gas caused in process procedure  ,complying with FDA and USDA standard

无毒性,加工时不产生有毒气味,符合美国FDAUSDA标准Nontoxic ,no poison gas caused in process procedure  ,complying with FDA and USDA standard

有毒性,加工会产生臭味,有毒气体,逐渐禁用.

Toxic and smelly gas caused in process production.

 

 

 

 

 

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