| abstract |
FIELD: textiles, paper. n SUBSTANCE: whiteness of paper products of natural colour is 35-60% ISO, and for their production unbleached straw cellulose is used with a tensile strength of 230-280 mN, fracture strength with multiple bends of 40-90 times and permanganate index of 16-28. The composition of natural-coloured paper products includes sanitary and hygienic natural-coloured paper, paper towel of natural colour, paper for wipe of natural colour, paper for photocopies of natural colour, paper box for food of natural colour, natural-coloured wrapping paper for food products, and printing paper of natural colour. n EFFECT: strength of the above mentioned paper products is high, and when control over the content of harmful substances dioxin and adsorbable organic halides are not detected. n 24 cl, 20 ex |