RU2515835C1 - Paper laminate (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: paper laminate includes a pressed stack of sheet layers of kraft paper impregnated with MMFP resin, zinc borate solution as a smoke suppressant, at least one layer of barrier paper, and at least one intermediate layer of a pressed wood composite material impregnated with xanthene dye Rhodamine S, placed between the layer of barrier paper and the impregnated paper layers, with the following content of components of said wood composite material, pts.wt: J. squamata 'Blue Pygmea' juniper shavings 50-75, Pinus mugo pine needles 25-35.

EFFECT: invention widens the range of materials for producing paper laminate and reduces smoke emission in case of fire.

3 cl, 1 tbl

Description

The invention relates to the chemical industry, and more specifically to the production of plastics, in particular paper-laminated plastics (BSP), and can be used mainly as structural and finishing polymer materials, for example in the manufacture of furniture, finishing polymer panels for various purposes, as well as in other industries.

Known decorative paper-laminated plastic containing an extruded package of sheets of paper (kraft paper) impregnated with synthetic resins, located between the decorative layer and the paper layer of bleached or unbleached pulp without preliminary impregnation with resins, weight 1 m ² , which is in the range of 15 up to 60 g (patent PM RU 33061 U1, 10.10.2003, B32B 23/06).

The technical result of the invention is the expansion of the arsenal of funds in the production of BSP.

The specified technical result is achieved due to the fact that the paper-laminate includes a pressed-in package of sheet layers of kraft paper impregnated with MMFP resin, at least one layer of barrier paper and at least one Rhodamine C impregnated with xanthene dye located between it and the paper layers the intermediate layer of pressed wood composite material with the following content of components in it, parts by weight:

juniper sawdust J. horizontalis 'Blue Pygmea' 50-75;

pine needles of Pinus koraiensis 25-35.

In another embodiment, the mass ratios are changed (selected). parts for sawdust and needles:

juniper sawdust J. horizontalis 'Blue Pygmea' 80-90;

pine needles Pinus koraiensis 50-70.

or

juniper sawdust J. horizontalis 'Blue Pygmea' 50-75;

pine needles Pinus koraiensis 50-75

BSP consists of sheets (package) of kraft paper, which are impregnated in bathtubs or automatic impregnation machines with synthetic resin, in particular MMFP. As options, MFP-2 or PMF resin can be chosen as the resin (PMF is recommended for the manufacture of synthetic sheet veneer in plants with high temperature conditions).

A protective layer of barrier paper, an underlay, is placed on top of a package of kraft paper sheets. As a barrier paper, bag paper (base) is used, on which a two-layer barrier coating is applied - a barrier lacquer. Various types of sack paper can be used as a base, but it is preferable to use “stretchable” kraft paper.

one 2 3 Juniper sawdust J. horizontalis 'Blue Pygmea' 50-75 80-90 50-75 Pine needles Pinus koraiensis 25-35 50-70 50-75

After the impregnation of the layers, the layers are dried, followed by cutting and assembling the bag, after which the pressing or molding of products of complex configuration begins, followed by heat treatment with hot air (140 ° C - 180 ° C) at a continuous pressure provided by the clamping shafts (4-10 MPa), or infrared rays, with subsequent processing of the back side on the roughing machines using an endless abrasive tape.

Claims (3)

1. Laminated paper, characterized in that it includes a pressed-in package of sheet layers of kraft paper impregnated with an MMFP resin, at least one layer of barrier paper and at least one intermediate layer impregnated with xanthene dye Rhodamine C interposed between it and the paper layers pressed wood composite material with the following content of components in it, parts by weight:
juniper sawdust J. horizontalis 'Blue Pygmea'50-75;
pine needles of Pinus koraiensis 25-35. 2. Laminated paper, characterized in that it includes a pressed-in package of sheet layers of kraft paper impregnated with MMFP resin, at least one layer of barrier paper and at least one intermediate layer impregnated with xanthene dye Rhodamine C interposed between it and the paper layers pressed wood composite material with the following content of components in it, parts by weight:
juniper sawdust J. horizontalis 'Blue Pygmea'80-90;
pine needles Pinus koraiensis 50-70. 3. Laminated paper, characterized in that it includes a pressed-in package of sheet layers of kraft paper impregnated with MMFP resin, at least one layer of barrier paper and at least one intermediate layer impregnated with xanthene dye Rhodamine C interposed between it and the paper layers pressed wood composite material with the following content of components in it, parts by weight:
juniper sawdust J. horizontalis 'Blue Pygmea'50-75;
pine needles Pinus koraiensis 50-75.