Matt coated paper preparation method

Abstract

The invention discloses a matt coated paper preparation method, and relates to the technical field of coated paper. The matt coated paper preparation method comprises the following steps: (1) raw paper preparation, (2) coating preparation, and (3) coating. The matt coated paper is not glaring during reading, difference between gloss of a printed product and gloss of paper is large, thus, high quality of the printed product is highlighted, images and texts are bright in color, and the printing adaptability is good.

Description

technical field

[0001] The invention belongs to the technical field of coated paper, and in particular relates to a method for preparing matte coated paper. Background technique

[0002] Coated paper is a high-grade printing paper made of base paper coated with white paint. It is mainly used for printing covers and illustrations of high-end books and periodicals, color pictures, various exquisite product advertisements, samples, product packaging, trademarks, etc.; by coating white paint on the surface of the base paper, the surface printability of the coated paper can be improved; but the existing Although high-quality coated paper has high gloss, the gloss is not uniform, and the coated paper is dazzling when reading, which makes the reader's eyes feel very uncomfortable.

[0003] The existing patent "001108522" is a production method of high-grade matt coated paper, which discloses the use of hardwood pulp, softwood pulp, and self-made oxygen-alkali bleached wheat straw ...

Examples

Embodiment 1

[0020] A method for preparing matte coated paper, comprising the following steps:

[0021] (1) Base paper preparation: Mix coniferous wood pulp and reed pulp at a mass ratio of 1:10 to obtain a mixed pulp, add 5% starch by mass and 8% calcium sulfate by mass to the mixed pulp, and perform PFI grinding and beating , and then carry out papermaking and drying to obtain base paper;

[0022] (2) Preparation of coating: the coating is made of the following components in parts by weight: sizing material 70, starch 12, dispersant 1, flake zinc powder 3, flake sericite powder 3, spherical calcium carbonate 1; The mass ratio of flaky zinc powder, flaky sericite powder, and spherical calcium carbonate is 3:3:1;

[0023] (3) Coating: The coating prepared in step (2) is coated with a double-sided film coater, dried with hot air after coating, and then finished with a four-roll double-sided soft-tight calender , that is.

[0024] Further, the number of beating revolutions of the PFI mill...

Embodiment 2

[0033] A method for preparing matte coated paper, comprising the following steps:

[0034] (1) Base paper preparation: Mix coniferous wood pulp and reed pulp at a mass ratio of 1:12 to obtain a mixed pulp, add 5% of its mass of starch and 10% of its mass of calcium sulfate to the mixed pulp, and perform PFI grinding and beating , and then carry out papermaking and drying to obtain base paper;

[0035] (2) Preparation of coating: the coating is made of the following components in parts by weight: sizing material 80, starch 15, dispersant 3, flake zinc powder 9, flake sericite powder 9, spherical calcium carbonate 3; The mass ratio of flaky zinc powder, flaky sericite powder, and spherical calcium carbonate is 3:3:1;

[0036] (3) Coating: The coating prepared in step (2) is coated with a double-sided film coater, dried with hot air after coating, and then finished with a four-roll double-sided soft-tight calender , that is.

[0037] Further, the number of beating revolutions ...

Embodiment 3

[0046] A method for preparing matte coated paper, comprising the following steps:

[0047] (1) Base paper preparation: Mix coniferous wood pulp and reed pulp at a mass ratio of 1:11 to obtain a mixed pulp, add 5% starch by mass and calcium sulfate 9% by mass to the mixed pulp, and perform PFI grinding and beating , and then carry out papermaking and drying to obtain base paper;

[0048] (2) Preparation of coating: the coating is made of the following components in parts by weight: sizing material 75, starch 14, dispersant 2, flake zinc powder 6, flake sericite powder 6, spherical calcium carbonate 2; The mass ratio of flaky zinc powder, flaky sericite powder, and spherical calcium carbonate is 3:3:1;

[0049] (3) Coating: The coating prepared in step (2) is coated with a double-sided film coater, dried with hot air after coating, and then finished with a four-roll double-sided soft-tight calender , that is.

[0050] Further, the number of beating revolutions of the PFI mill...

technical field

[0001] The invention belongs to the technical field of coated paper, and in particular relates to a method for preparing matte coated paper. Background technique

[0002] Coated paper is a high-grade printing paper made of base paper coated with white paint. It is mainly used for printing covers and illustrations of high-end books and periodicals, color pictures, various exquisite product advertisements, samples, product packaging, trademarks, etc.; by coating white paint on the surface of the base paper, the surface printability of the coated paper can be improved; but the existing Although high-quality coated paper has high gloss, the gloss is not uniform, and the coated paper is dazzling when reading, which makes the reader's eyes feel very uncomfortable.

[0003] The existing patent "001108522" is a production method of high-grade matt coated paper, which discloses the use of hardwood pulp, softwood pulp, and self-made oxygen-alkali bleached wheat straw ...

Examples

Embodiment 1

[0020] A method for preparing matte coated paper, comprising the following steps:

[0021] (1) Base paper preparation: Mix coniferous wood pulp and reed pulp at a mass ratio of 1:10 to obtain a mixed pulp, add 5% starch by mass and 8% calcium sulfate by mass to the mixed pulp, and perform PFI grinding and beating , and then carry out papermaking and drying to obtain base paper;

[0022] (2) Preparation of coating: the coating is made of the following components in parts by weight: sizing material 70, starch 12, dispersant 1, flake zinc powder 3, flake sericite powder 3, spherical calcium carbonate 1; The mass ratio of flaky zinc powder, flaky sericite powder, and spherical calcium carbonate is 3:3:1;

[0023] (3) Coating: The coating prepared in step (2) is coated with a double-sided film coater, dried with hot air after coating, and then finished with a four-roll double-sided soft-tight calender , that is.

[0024] Further, the number of beating revolutions of the PFI mill...

Embodiment 2

[0033] A method for preparing matte coated paper, comprising the following steps:

[0034] (1) Base paper preparation: Mix coniferous wood pulp and reed pulp at a mass ratio of 1:12 to obtain a mixed pulp, add 5% of its mass of starch and 10% of its mass of calcium sulfate to the mixed pulp, and perform PFI grinding and beating , and then carry out papermaking and drying to obtain base paper;

[0035] (2) Preparation of coating: the coating is made of the following components in parts by weight: sizing material 80, starch 15, dispersant 3, flake zinc powder 9, flake sericite powder 9, spherical calcium carbonate 3; The mass ratio of flaky zinc powder, flaky sericite powder, and spherical calcium carbonate is 3:3:1;

[0036] (3) Coating: The coating prepared in step (2) is coated with a double-sided film coater, dried with hot air after coating, and then finished with a four-roll double-sided soft-tight calender , that is.

[0037] Further, the number of beating revolutions ...

Embodiment 3

[0046] A method for preparing matte coated paper, comprising the following steps:

[0047] (1) Base paper preparation: Mix coniferous wood pulp and reed pulp at a mass ratio of 1:11 to obtain a mixed pulp, add 5% starch by mass and calcium sulfate 9% by mass to the mixed pulp, and perform PFI grinding and beating , and then carry out papermaking and drying to obtain base paper;

[0048] (2) Preparation of coating: the coating is made of the following components in parts by weight: sizing material 75, starch 14, dispersant 2, flake zinc powder 6, flake sericite powder 6, spherical calcium carbonate 2; The mass ratio of flaky zinc powder, flaky sericite powder, and spherical calcium carbonate is 3:3:1;

[0049] (3) Coating: The coating prepared in step (2) is coated with a double-sided film coater, dried with hot air after coating, and then finished with a four-roll double-sided soft-tight calender , that is.

[0050] Further, the number of beating revolutions of the PFI mill...