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Stretch film

On the stretch film does not provide GOST. Production of the film is in accordance with standards of the organization (the manufacturer). This standard applies to
a polyethylene film, produced by extrusion of LDPE (low density), and compositions on its base containing pigments (dyes), stabilizers, slip, antistatic, and builders.

The film used as packaging material in various sectors of the economy.

 

1. NAMES AND SIZES

1.1 For the manufacture of consumer products, packaging and household goods, painted and unpainted, stabilized and unstabilized film grade used by the film AN

1.2 For the manufacture of the film marks composition H are allowed to slip, anti-static and up to 5% of the modifying additives, including the polymer.

Recommended brand of high-pressure polyethylene and compositions based on them are given in Appendix 1a.

1.3 The film comes in irregularly wound coils in the form of cloth (sleeve, cut along the entire length on both sides with a cutting or without trimming).

1.4 Maximum deviation of the width of the roll of film to cloth, feed cutting edge, - ± 1%.

Number of segments of the film in a roll top grade should be no more than two.

 

2. TECHNICAL REQUIREMENTS

2.1 The film should be made in accordance with the requirements of this standard on technological regulations, approved in a prescribed manner.

2.2 The film on the linear dimensions must conform to the standards specified in Table 1.

2.3 In appearance and physical-mechanical characteristics of the film must meet the requirements and standards set forth in Table 2.

Terms and definitions of the defects of the film are shown in Appendix 2a.

2.4 The film is wound into rolls on cardboard spools navivnye made to the standard documentation. Sizes are indicated spools in Table 3. To keep the ends of the
length of the spool must be less than the width of the roll of film for 5-10 mm on each side of the roll.

2.5 The displacement of the end face of the film roll is allowed within the tolerance width.

 

  
Narrative.

norm

manual

automatic

  • The nominal thickness and the maximum deviation, m.

15 ± 1,5
17 ± 1,5
20 ± 2,0
23 ± 2,0

17 ± 2,0
20 ± 2,0
23 ± 2,0

  • Web width and maximum deviation,

    a) film for packaging machine;

    b) films for manual packaging;

 

(500 - 1500) ± 1,0%
(450 - 500) ± 1,0%

  • The length of the film in a roll, m

    a) film for packaging machine;

    b) films for manual packaging;

 

1500 - 2000
200 - 300

  • Appearance.

The film should be transparent, should not have cracks,

pressed warehouses, gaps and holes. Class I helico.

Roll tight-wound and flat butt.

  • Tensile strength, MPa, not less

    in the longitudinal direction

    in the transverse direction

 

30 
20

 

45
25

  • Puncture Strength, MPa, not less

 21

 21

  • Elongation at break,%, not less

    in the longitudinal direction

    in the transverse direction

 

250
450

 

300
600

  • Guaranteed pre-stretching,%, not

    less than:

 

200

 

280

  • Guaranteed pre-stretching,%, not

    less than:

 45

 50

 


Make a film

The main dimensions of spools

Inner diameter, mm

The outer diameter

of the sleeve, mm

Weight sleeve kg

machine film

76,2

96,2

1,1 – 1,6

hand film

winding width 450 mm

winding width of 500 mm

 

50
50

 

60
60

 

0,25
0,27