| 摘要 |
FIELD: polymeric materials. ^ SUBSTANCE: invention relates to laminated material, a method for its preparing and a method for their using in manufacturing "soft" articles for one-time using. The laminated material consists of the first polymeric layer and the second polymeric layer. The first polymeric layer comprises at least one polyolefin and it is stretched in two directions followed by its partial relaxation by decreasing the stretching index in the first direction up to its final value and/or being independently of the final value of the stretching index in the first direction by decreasing the stretching index in the second direction up to its final value. Then the second polymeric layer is applied above the first polymeric layer by extrusion method or by thermal welding. The shrinkage value change of this laminated material in transverse direction is less about 0.6% per 100 m of length, not less, in machine direction. The prepared laminated material is not subjected for heat deformation practically being especially characterizing by small change of heat deformation along width of material, it can be used for printing, especially, in manufacturing "soft" articles for one-time using. ^ EFFECT: valuable technical properties of material. ^ 20 cl, 3 dwg, 3 tbl, 6 ex |
