FIELD: textile, paper.
SUBSTANCE: cardboard is used in products which originality should be confirmed. Cardboard contains filamentary matrix with two surfaces. Back surface of filamentary matrix includes layer of surface sizing compound containing marking agent in the form of particles less than 50 mcm in size. For cardboard production filamentary matrix is used, which surface is sized from at least one side representing back side of cardboard. Marking agent in the form of particles of less than 50 mcm size is introduced into sizing compound and marking agent particles are fixed on cardboard. Filamentary matrix is subject to surface sizing in pot or in film and sizing press or by means of doctoring device.
EFFECT: reduction of marking agent particles consumption by 80-90% and improvement of products quality.
34 cl, 1 dwg, 2 ex
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| HYDROPHOBICALLY DRESSED FIBER MATERIAL AND METHOD FOR PRODUCING LAYER OF DRESSED MATERIAL | 2013 |
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RU2635615C2 |
| METHOD FOR MANUFACTURING OF CARDBOARD AND METHOD FOR REDUCING MOISTURE-PERMEABILITY OF CARDBOARD | 2002 |
|
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| METHOD FOR GLUEING FIBROUS MATERIALS IN MASS | 0 |
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| METHOD OF PRODUCING WOOD PULP FIBRES WITH INCREASED VOLUME, OBTAINED WOOD PULP FIBRES AND ARTICLES CONTAINING SAID WOOD PULP | 2017 |
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RU2716879C1 |
| IMPORTANT DOCUMENT AND PROTECTIVE DESIGNATION WITH MARKING SUBSTANCE | 2002 |
|
RU2305866C2 |
| COMPOUND FOR SIZING OF FIBROUS MATERIAL | 0 |
|
SU1730304A1 |
| COMPOUND FOR SIZING OF FIBROUS MATERIAL | 0 |
|
SU1730306A1 |
| LAMINATED FACING CARDBOARD FOR MAKING GYPSUM-BOARD PANELS | 0 |
|
SU1071674A1 |
| NOVEL ALKENYLSUCCINIC ANHYDRIDE-BASED COMPOSITIONS AND UTILIZATION THEREOF | 2001 |
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| METHOD OF FABRICATING GLUED PAPER, PAPERBOARD, BOARD, AND SIMILAR PRODUCTS FROM CELLULOSE FIBERS, AND AQUEOUS DISPERSION OF GLUING AGENTS | 1995 |
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RU2097464C1 |
