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BOPET (Biaxially oriented polyethylene terephthalate) film for positioning transfer, and manufacturing method of same

A manufacturing method and film technology, applied in the field of positioning transfer BOPET film and its manufacturing, can solve the problems of large longitudinal thermal shrinkage

Inactive Publication Date: 2012-11-14
GUANGDONG KEYI SMART FILM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of BOPET film for positioning transfer in view of the relatively large longitudinal thermal shrinkage rate of the existing BOPET film used for positioning transfer, and the longitudinal thermal shrinkage rate of this BOPET film is less than 1.5%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The manufacturing method of the BOPET film that is used for positioning transfer in the present embodiment, sends 80 parts of glossy PET slices and 20 parts of nano-silica PET masterbatch to dry and mix and send into extruder to extrude , casting, longitudinal stretching, transverse stretching, relaxation, traction and winding to obtain BOPET film for positioning transfer.

[0022] The content of the silicon dioxide in the nano-silica PET masterbatch is 3000PPM.

[0023] The longitudinal stretch is a stretch, and the specific parameters of the stretch are:

[0024] The stretching temperature is 88°C, and the stretching ratio is 3.8:1 for one stretch.

[0025] The transverse stretching is four stages of preheating section, stretching section, heat setting section and cooling section:

[0026] In the preheating section, the longitudinally stretched film is preliminarily shaped, stress relieved, preheated and ready for stretching, and the temperature is 70°C;

[0027] T...

Embodiment 2

[0032] The difference between the manufacturing method of the BOPET film used for positioning transfer and embodiment 1 in the present embodiment is:

[0033] Dry and mix 82 parts of bright PET slices and 18 parts of nano-silica PET masterbatch according to the number of parts by mass, and then send them to the extruder for extrusion, casting, longitudinal stretching, transverse stretching, relaxation, traction and collection. rolls, obtain BOPET film for positioning transfer.

[0034] The content of the silicon dioxide in the nano-silica PET masterbatch is 3200PPM.

[0035] The longitudinal stretching is twice stretching, the specific steps and parameters of the two stretching:

[0036] The stretching temperature is 80°C, the stretching ratio of the first stretching is 1.5:1, and the stretching ratio of the second stretching is 2.3:1.

[0037] The transverse stretching is four stages of preheating section, stretching section, heat setting section and cooling section:

[00...

Embodiment 3

[0044] The difference between the manufacturing method of the BOPET film used for positioning transfer and embodiment 1 in the present embodiment is:

[0045] According to the number of parts by mass, 83 parts of bright PET chips and 17 parts of nano-silica PET masterbatch are dry mixed and then sent to the extruder for extrusion, casting, longitudinal stretching, transverse stretching heat setting, relaxation, traction And winding to obtain a BOPET film for positioning transfer.

[0046] The content of the silicon dioxide in the nano-silica PET masterbatch is 4000PPM.

[0047] The longitudinal stretch is a stretch, and the specific steps and parameters of the stretch are:

[0048] The stretching temperature is 95° C., and the stretching ratio is 3.3:1.

[0049] The transverse stretching is four stages of preheating section, stretching section, heat setting section and cooling section:

[0050] In the preheating section, the longitudinally stretched film is preliminarily sh...

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PUM

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Abstract

A BOPET (biaxially oriented polyethylene terephthalate) film for positioning transfer relates to a BOPET (biaxially oriented polyester) film. The material of the BOPET (biaxially oriented polyester) film comprises the following components in percentage by weight: 80-85% of lustrous PET chips, and 15-20% of nano silica PET masterbatches. The manufacturing method comprises the following steps: drying and mixing the lustrous PET chips and nano silica PET masterbatches, and then feeding the mixture to an extruder, and sequentially performing the steps of extruding, casting piece, longitudinally stretching, transversely stretching, relaxing, pulling and rolling to obtain the BOPET film. In comparison with the existing technology, the BOPET film has the following beneficial effects that the BOPET film for positioning transfer obtained by the manufacturing method provided by the invention has a longitudinal thermal shrinkage rate of less than 1.5% and a transverse thermal shrinkage rate of 0 at 190 DEG C for 15min, so the BOPET film meets the requirements of positioning transfer printing.

Description

technical field [0001] The invention relates to a BOPET film and a manufacturing method thereof, in particular to a BOPET film for positioning transfer and a manufacturing method thereof. Background technique [0002] BOPET film refers to biaxially oriented polyester film. The existing industry standard for film shrinkage rate is: under the condition of 150°C and 15 minutes, the transverse heat shrinkage rate is less than 0.8%, and the longitudinal heat shrinkage rate is less than 3%. This standard was formulated in 1989. [0003] Positioning transfer usually includes the following steps: coating a release layer on the film; coating on the release layer of the film; embossing holograms on the surface of the coating; aluminizing the molded surface and coating the surface of the aluminized layer After the adhesive is the laser film; compound the laser film and paper or plastic material under mold heating and pressure, peel off the film, and transfer the hologram and aluminum ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K3/36C08J3/22B29C55/12
Inventor 谢庆坚
Owner GUANGDONG KEYI SMART FILM TECH CO LTD