Flattening method for nylon film processing semi-finished product

A technology of nylon film and semi-finished products, which is applied in the field of smoothing and finishing nylon film processing semi-finished products, which can solve the problems of film surface wrinkles, uneven film thickness, film damage, etc., and achieve uniform shrinkage, low viscosity and non-volatile effects

Pending Publication Date: 2021-06-01
CANGZHOU DONGHONG FILM TECH CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

[0002] Nylon film is a very tough film with good transparency, good gloss, high tensile strength and tensile strength, and good heat resistance, cold resistance, oil resistance and organic solvent resistance. Excellent wear resistance and puncture resistance, relatively soft, excellent oxygen resistance, but poor barrier property to water vapor, high moisture absorption and moisture permeability, poor heat sealing performance, suitable for packaging hard items, such as greasy Sexual food, meat products, fried food, vacuum-packed food, steamed food, etc.
[0003] In the production of polymer films, biaxial stretching or uniaxial stretching is required. Due to the high stretching temperature, it is necessary to cool...
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Abstract

The invention relates to the technical field of nylon film processing, in particular to a flattening method for a nylon film processing semi-finished product, which is simple in process, enables a stretched film to retract in liquid, improves the deformation uniformity of the film and prevents wrinkles. The method comprises the following steps that S1, a containing box is installed at an outlet of a stretching box, the interior of the containing box is hollow, the top of the containing box is open, liquid which is low in toxicity or free of toxicity, low in viscosity, not prone to volatilization and free of water is added into the containing box, N lower rollers are installed in a lower half area of the interior of the containing box and located in the liquid, N+1 upper rollers are installed in an upper half area of the containing box, and a height lifting section is arranged at a film outlet of the containing box; S2, N-1 partition plates are arranged at the inner bottom of the containing box, and the interior of the containing box is divided into N areas; and S3, the film from the stretching box passes through the N+1 upper rollers and the N lower rollers in an S shape, the liquid on the surface of a nylon film is removed by means of the height lifting section, and then the next procedure is conducted.

Application Domain

Flat articles

Technology Topic

Thin membraneChemistry +6

Image

  • Flattening method for nylon film processing semi-finished product

Examples

  • Experimental program(2)
  • Comparison scheme(1)
  • Effect test(1)

Example Embodiment

[0022]Example 1:
[0023]Include the following steps:
[0024]S1, stretched box outlet mounting box 1, the box 1 is in the interior and top opening, the exclusive box 1 is added to the inside of the box 1 to add low toxicity or non-toxic, low viscosity 1-11CPS, not easy to volatilize and contain water-free silicone oil, bloom 4 lower roller 2 is mounted in the upper half of the box 1, and 4 lower roller 2 height can be adjusted, and both lower roller 2 are in the inside of silicone oil, and 5 in the upper half of the floors. Both the upper roller 3, and 5 upper roller 3 are above the silicone oil, and the high degree of lifting segment height lifting segment is set up in turn internally in contact with the nylon film at the thin film outlet of the box 1. Transition roller 5 in contact with the nylon film. The scratch roller 6 in contact with the back surface of the nylon film is toward the first blade 7 toward the nylon film, and the first traction roller 9 and the second traction roller 10 driven by the nylon film on the back of the nylon film. The upper roller 3 and the lower roller 2 are driven by the motor, and the adjacent upper roller 3 and the lower roller 2 are adjusted at a speed ratio mode;
[0025]S2, 3 partitions 4 are provided in the bottom of the box 1, and the inner portion of the pruning box 1 is divided into 4 regions, and the temperature of the four regions is gradually reduced to room temperature along the nylon film, and the four regions are used alone. control;
[0026]S3, the film from the tensile box is S type through 5 upper roller 3 and 4 lower roller 2, and then removes silicone oil on the surface of the nylon film via a height lifting section, and then proceeds to the next step;

Example Embodiment

[0027]Example 2:
[0028]Example 1 is replaced with isobutanol;

PUM

PropertyMeasurementUnit
Viscosity1.0 ~ 11.0cps

Description & Claims & Application Information

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