阅读说明：本技术 一种适用于高克数铜版纸的书本背胶 (Book back glue suitable for high-gram coated paper ) 是由 陈林 于 2018-08-08 设计创作，主要内容包括：本发明公开了一种适用于高克数铜版纸的书本背胶,包括以下重量份的原料：费托蜡7~10份、石蜡8~12份、EVA35~40份、松香树脂27~30份、石油树脂13~17份。本发明适合于200g以下铜版纸及胶版纸书籍装订,主要应用于图文、画册、教材教辅类书籍装订,具有成本低,硬度大,粘接力强,不拉丝,装订的书籍美观大方,适合于6000/h以下低速胶装生产线。(The invention discloses a book back glue suitable for high-gram coated paper, which comprises the following raw materials in parts by weight: 7-10 parts of Fischer-Tropsch wax, 8-12 parts of paraffin, 35-40 parts of EVA, 27-30 parts of rosin resin and 13-17 parts of petroleum resin. The binding machine is suitable for binding copperplate paper and offset paper books below 200g, is mainly applied to binding of graphics, pictures and books and teaching materials and teaching books, has the advantages of low cost, high hardness, strong bonding force, no wiredrawing and elegant appearance of bound books, and is suitable for low-speed binding production lines below 6000/h.)

1. The book gum suitable for the high-gram coated paper is characterized by comprising the following raw materials in parts by weight: 7-10 parts of Fischer-Tropsch wax, 8-12 parts of paraffin, 35-40 parts of EVA, 27-30 parts of rosin resin and 13-17 parts of petroleum resin.

2. The book gum suitable for high-gram coated paper of claim 1, wherein: the EVA comprises specification A and specification B, wherein the EVA of the specification A has VA content of 28% and melt index of 150; the EVA with the specification B has a VA content of 28% and a melt index of 25; the EVA coating is characterized in that the EVA coating of the specification A is 23-28 parts by weight, and the EVA coating of the specification B is 12-17 parts by weight.

3. A process for producing a book backsize suitable for high-grammage coated paper according to claim 1, comprising the steps of:

s1, preheating in a reaction kettle;

s2, adding polyethylene wax and paraffin wax in the temperature rising process of the reaction kettle, and stirring;

s3, when the temperature of the materials in the reaction kettle reaches 120-130 ℃, sequentially adding EVA under the stirring condition, and controlling the temperature of the materials to be 130-140 ℃ to completely melt the materials;

s4, adding rosin resin and petroleum resin into the reaction kettle under the stirring condition, cooling to the material temperature of 110-120 ℃, then reducing the stirring speed to 30-35 r/min, and vacuumizing for 30-50 min;

and S5, after the mixed materials in the reaction kettle are completely melted and uniformly mixed, pressurizing, filtering, granulating in cooling water, and air-drying to obtain the product.

Technical Field

The invention relates to the technical field of adhesive production, in particular to a high-gram-number coated paper book back adhesive and a production process thereof.

Background

The wireless adhesive binding technology adopted by books, paintings and the like is mature, and is widely applied to binding of various books, pictures, texts and paintings, but the phenomena of glue opening, page dropping, spine exposing and the like still frequently occur in the binding process of high-grade coated paper books, and the hot-melt book back adhesive used in the binding process has the defects of small adaptability, unstable performance, weak bonding force, small hardness and the like; therefore, the back glue of the high-gram coated paper has the characteristics of good stability, high bonding strength and hardness, low cost, wide adaptability and the like, and solves the long-standing problem in the wireless binding process of the high-gram coated paper books and paintings.

Disclosure of Invention

The invention aims to solve the problems and provides a book back glue suitable for high-gram coated paper, which comprises the following raw materials in parts by weight: 7-10 parts of Fischer-Tropsch wax, 8-12 parts of paraffin, 35-40 parts of EVA, 27-30 parts of rosin resin and 13-17 parts of petroleum resin.

Preferably, the EVA comprises specification A and specification B, the EVA of specification A has VA content of 28% and melt index of 150; the EVA with the specification B has a VA content of 28% and a melt index of 25; the EVA coating is characterized in that the EVA coating of the specification A is 23-28 parts by weight, and the EVA coating of the specification B is 12-17 parts by weight.

The invention also provides a production process of the book back glue suitable for the high-gram coated paper

S1, preheating in a reaction kettle;

s2, adding polyethylene wax and paraffin wax in the temperature rising process of the reaction kettle, and stirring;

s3, when the temperature of the materials in the reaction kettle reaches 120-130 ℃, sequentially adding EVA under the stirring condition, and controlling the temperature of the materials to be 130-140 ℃ to completely melt the materials;

s4, adding rosin resin and petroleum resin into the reaction kettle under the stirring condition, cooling to the material temperature of 110-120 ℃, then reducing the stirring speed to 30-35 r/min, and vacuumizing for 30-50 min;

and S5, after the mixed materials in the reaction kettle are completely melted and uniformly mixed, pressurizing, filtering, granulating in cooling water, and air-drying to obtain the product.

The invention has the beneficial effects that: the binding machine is suitable for binding the bound books with the coated paper and the offset paper below 200g, is mainly applied to binding the books with the graphics, the paintings and the teaching materials and the teaching aids, has the advantages of low cost, high hardness, strong bonding force, no wiredrawing and elegant appearance of the bound books, and is suitable for a low-speed binding production line below 6000/h.

Detailed Description

The claimed solution of the invention will now be described in further detail by means of specific examples.

The following are specifications of the raw materials used in the examples.

Watch 1

Name (R)	Manufacturer of materials
		Fischer-Tropsch wax C80M	Rope slack
Refining of No. 60 Paraffin	Petroleum-smoothing petrochemical company
		EVA（VA:28，MI:150）	Dupont
EVA（ VA:28，MI:25）	Korean LG
		Rosin resin KF462S	Guangzhou Kemao chemical Co Ltd
Rosin resin KA100W	Guangzhou Kemao chemical Co Ltd
		Petroleum resin 5100	Shandong Shenshen county Saishun resin Co Ltd