FIELD: personal demand items.
SUBSTANCE: invention is related to the field of powdery materials storage. Method for manufacturing and filling of plastic bag consists in use of plastic film, in which multiple microholes are created, bag is formed from film, including wall and bottom. Bag is filled with content, including air and finely ground powder having average particle size up to 150 mcm, and bag is fixed. At least part of captured air is removed from bag through microholes, and microholes are sealed by means of film-producing resin, which provides for sufficient strength of film, making it possible to cover microholes and preserve integrity of film until it hardens.
EFFECT: invention provides for reliable storage of powdery materials without moisture access to them.
18 cl, 2 dwg, 3 tbl, 2 ex
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| MIXTURE AND FILM WITH PAINT ABRASION RESISTANCE PROPERTIES | 2014 |
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| MULTI-LAYER SHRINK FILM | 2014 |
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| DOUBLE PACKAGE FOR POWDERS AND GRANULES AND METHOD OF PACKING | 1995 |
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RU2143386C1 |
| LAMINAR FILM COMPOSITIONS, PACKAGES MADE THEREOF AND THEIR APPLICATIONS | 2006 |
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RU2427467C2 |
| UV EMISSION-HARDENED BLOCK-COPOLYMER COMPOSITION (VERSION) AND METHOD OF PREPARATION THEREOF | 1994 |
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