FIELD: plastic processing.
SUBSTANCE: in the method, a multilayer film containing at least a main layer film, a shrink film and a photothermal layer bonded to the main layer film and containing photothermal material are exposed to electromagnetic radiation such that the photothermal material generates heat and results in shrinkage of the multilayer film. Ultraviolet radiation having a peak wavelength between 200 and 399 nm is used, and at least 90 % of ultraviolet radiation is within a bandwidth of ±30 nm from the peak wavelength. According to another embodiment of the method, unlike the above, a sleeve containing a multilayer film is exposed so that photothermal material compresses the film.
EFFECT: group of inventions ensures higher quality.
28 cl, 11 dwg, 11 tbl
| Title | Year | Author | Number |
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| MIXTURE AND FILM WITH PAINT ABRASION RESISTANCE PROPERTIES | 2014 |
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| RECYCLABLE SHRINK FILM FOR RECYCLABLE CONTAINER | 2022 |
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| METHOD OF SELF-ADHESIVE SHRINKAGE LABEL APPLICATION ON ARTICLE | 2012 |
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| PRINT, METHOD OF RECORDING, METHOD OF INFORMATION RECOGNITION AND SYSTEM OF INFORMATION RECOGNITION | 2004 |
|
RU2335404C2 |
| ISOTHERMAL CONTAINER | 2008 |
|
RU2424961C1 |
| SELF-ADHESIVE SHRINKAGE LABEL AND PRODUCT WITH LABEL | 2008 |
|
RU2505573C2 |
| METHOD OF PRODUCING DECORATIVE COAT WITH LUMINOPHORES | 2010 |
|
RU2416529C1 |
| SYNTHETIC SAUSAGE POLYAMIDE-BASED COVER FILLED WITHOUT STRETCHING AND METHOD OF ITS PRODUCTION | 2010 |
|
RU2442425C2 |
| PRODUCT AND METHOD OF PACKING SAID PRODUCT IN POLYMER FILM | 2005 |
|
RU2391269C2 |
