Macro Perforated Polyolefin (POF) Shrink Film
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Macro perforated Polyolefin (POF) shrink film incorporates a series of larger perforations compared to the standard micro-perforated films. These perforations allow for better air and gas exchange, which is particularly beneficial for packaging products that require ventilation. This feature makes it an ideal choice for packaging perishable goods such as fruits, vegetables, and baked goods, which might emit gases or need to 'breathe' to maintain freshness over time.

POF shrink film is known for its excellent clarity, strength, and flexibility. It is a durable material that can withstand various stresses during packaging, handling, and transportation. The film shrinks when heat is applied, conforming tightly to the shape of the product it encases, which helps in protecting the contents while providing a visually appealing package that enhances product visibility and appeal.

The macro perforations in POF shrink film are strategically designed to control the flow of air and gases in and out of the packaged product. This helps in preventing the buildup of moisture inside the package, which can lead to spoilage or the growth of mold and bacteria in the case of food products. Additionally, for non-food items that may release gases or for packages that need to equalize pressure during shipping, macro perforated POF shrink film offers an effective solution.

This type of film combines the benefits of high-quality polyolefin shrink film with the specific advantages of controlled ventilation, making it a versatile packaging solution for a wide range of applications where product freshness and visibility are key.



TEST ITEM

UNIT

ASTM TEST

TYPICAL VALUES

THICKNESS

mic


12

15

19

25

30




MD/TD

MD/TD

MD/TD

MD/TD

MD/TD

Tensile Strength

N/mm

D882

115/110

110/105

110/105

100/100

115/110

Elongation

%


120/110

115/115

115/120

120/125

115/120

Tear

g

D1992

11.5/11

12.5/13

15/15.5

20.5/22

25/26

Seal Strength

N/mm

F88

0.68/0.7

0.75/0.8

1/1.05

1.27/1.3

1.5/1.55

COF Dynamic(Film to Film)


D1894

0.22

0.23

0.24

0.24

0.25

Haze

%

D1003

2.10

2.60

3.00

3.80

4.40

Clarity


D1746

99.0

98.0

97.0

95.0

92.0

Gloss@45deg


D2457

85.0

87.0

83.5

82.5

80.0

Free Shrinkage

110

%

D2732

38/40

35/38

34/36

32/33

31/30

120

57/60

56/61

55/59

54/58

53/56

130

61/64

60/63

57/61

56/60

55/59

Shrink Tension

110

Mpa

D2838

2.7/3.45

2.65/3.5




120

2.75/3.65

2.75/3.6

2.73/3.6

2.7/3.58

2.7/3.6

130

2.65/3.25

2.6/3.2

2.6/3.15

2.5/3.1

2.5/3.0


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Established in 2005 Yu Long Packing Co.,Ltd specializes in marketing, production and distribution of shrink film for today's demanding soft packing industry.

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