| 摘要 |
FIELD: chemistry.SUBSTANCE: invention can be used in production of plastics, dyes, concrete, in agriculture. Method of producing self-binding pigment particle dye involves preparing an aqueous suspension of a pigment substance and at least one anionic and/or amphoteric starch. Starch is mixed with aqueous suspension of pigment substance. Starch is added to an aqueous suspension of pigment substance in amount of 0.5 to 20 wt% of total weight of dry pigment substance in suspension. Aqueous suspension and starch are combined by grinding so that amount of free starch in obtained suspension is equal to less than 50 wt% of total amount of added starch. Surface charge pigment substance after grinding is neutral or anionic. Grinding step is carried out during and/or after steps of mixing at temperature of 10 °C to 40 °C.EFFECT: invention improves mechanical and optical properties of coatings for paper, containing self-binding particles of pigment dye.27 cl, 19 tbl, 4 ex |
