초록 ▼

A novel clay pigment, the manufacture thereof and the use of the pigment in the production of dull and matte-finish coated printing papers. The novel clay pigment comprises a mixture of a coarse-size fraction of naturally-occurring kaolin clay containing a substantial proportion of kaolinite booklet

A novel clay pigment, the manufacture thereof and the use of the pigment in the production of dull and matte-finish coated printing papers. The novel clay pigment comprises a mixture of a coarse-size fraction of naturally-occurring kaolin clay containing a substantial proportion of kaolinite booklets in the particle size range of 2 to 5 mm

대표청구항 ▼

A low gloss coated printing paper having improved optical and printing properties, said printing paper comprising paper and a smooth coating thereon of adhesive-bound clay particles, said clay particles comprising (a) from 5 to 30 parts by weight of mechanically delaminated particles of kaolin clay,

A low gloss coated printing paper having improved optical and printing properties, said printing paper comprising paper and a smooth coating thereon of adhesive-bound clay particles, said clay particles comprising (a) from 5 to 30 parts by weight of mechanically delaminated particles of kaolin clay, the particles of which range in size from 2 m10 m2 m5 m95 to 70 parts by weight of a coarse particle-size fraction of kaolin clay which has not undergone mechanical delamination, said course-size fraction being essentially free from particles coarser than 10 m88% to 94% by weight of particles finer than 5 m40% to 60% finer than 2 m