阅读说明：本技术 复合内衬纸涂布印刷加工工艺 (Composite lining paper coating and printing processing technology ) 是由 周兴 龚正涛 杨永 方绍文 金明 任仲友 叶思红 幸光辉 王孝存 冯文宝 钟迪 于 2020-12-02 设计创作，主要内容包括：本发明公开了复合内衬纸涂布印刷加工工艺,具体步骤如下：(1)放卷：将铝箔卷和内衬纸分别插入在两个放卷设备上,同时放出铝箔和内衬纸,放出的铝箔和内衬纸相互平行,铝箔位于内衬纸的正上方,(2)复合：在铝箔和内衬纸相对的一面通过涂胶辊涂抹粘结剂,然后将涂抹粘结剂的铝箔和内衬纸同时通过复合压辊进行压合成型得到复合内衬纸。本发明印刷辊设置为微凹网辊,其次复合内衬纸的走纸方向与微凹网辊的转动方向相反,复合内衬纸与微凹网辊逆向涂布,产生一定的相对摩擦,利于涂布液在复合内衬纸上均匀铺展,进一步的微凹网辊传液量较大,使得油墨能够充分填充复合内衬纸纤维空隙及亚表面凹凸区域,保证其涂布效果。(The invention discloses a coating and printing processing technology of composite lining paper, which comprises the following specific steps: (1) unreeling: insert aluminium foil book and interior slip sheet respectively on two unwinding equipment, emit aluminium foil and interior slip sheet simultaneously, the aluminium foil and the interior slip sheet of emitting are parallel to each other, and the aluminium foil is located interior slip sheet directly over, (2) compound: and coating a bonding agent on the opposite surfaces of the aluminum foil and the lining paper through a glue coating roller, and then simultaneously pressing and molding the aluminum foil coated with the bonding agent and the lining paper through a composite compression roller to obtain the composite lining paper. The printing roller is arranged as a micro-concave net roller, the paper feeding direction of the composite inner lining paper is opposite to the rotating direction of the micro-concave net roller, the composite inner lining paper and the micro-concave net roller are coated in a reverse direction to generate certain relative friction, so that coating liquid can be uniformly spread on the composite inner lining paper, the liquid transfer amount of the further micro-concave net roller is large, the fiber gaps and the sub-surface concave-convex areas of the composite inner lining paper can be fully filled with the ink, and the coating effect of the composite inner lining paper is ensured.)

1. The composite lining paper coating and printing processing technology is characterized by comprising the following specific steps of:

(1) unreeling: respectively inserting an aluminum foil roll and lining paper on two unreeling devices, and simultaneously paying off the aluminum foil and the lining paper, wherein the paid-off aluminum foil and the lining paper are parallel to each other, and the aluminum foil is positioned right above the lining paper;

(2) compounding: coating an adhesive on the opposite surfaces of the aluminum foil and the lining paper through a glue spreader, and then simultaneously pressing and molding the aluminum foil coated with the adhesive and the lining paper through a composite compression roller to obtain composite lining paper;

(3) and (3) composite drying: conveying the composite lining paper into a drying box through a conveying roller for drying, wherein the drying time is 6-8 seconds, and conveying the composite lining paper out through the conveying roller after the drying is finished;

(4) coating a protective layer; conveying the dried composite lining paper into a coating machine through a conveying roller, and coating a protective layer of 1.5-3g/m on the upper surface of the composite lining paper through a coating head arranged on the coating machine;

(5) drying the protective layer: conveying the composite lining paper coated with the protective layer into an ultraviolet drying box through a conveying roller, and drying the protective layer through an ultraviolet lamp tube arranged in the ultraviolet drying box;

(6) printing: conveying the composite inner lining paper coated with the protective layer into a printer through a conveying roller, and printing the lower surface of the composite inner lining paper through a printing roller;

(7) printing and drying; conveying the printed composite lining paper into an oven through a conveying roller, and drying;

(8) slitting and rolling: and cutting the dried composite inner lining paper and then conveying the cut composite inner lining paper to a winding roller for winding.

2. The process of coating and printing the composite liner paper as claimed in claim 1, wherein the tension of the aluminum foil roll and the liner paper in the steps (1) and (2) is controlled to be 10-12N, and the conveying speed of the aluminum foil roll and the liner paper in the steps (1) and (2) is controlled to be 150 m/min.

3. The process of coating and printing the composite liner paper as claimed in claim 1, wherein the tension of the composite liner paper in the steps (3) to (8) is controlled to be 12-18N, and the conveying speed of the composite liner paper in the steps (3) to (8) is controlled to be 150-250 m/min.

4. The process of claim 1, wherein a horizontal bearing plate is arranged on the lower surface of the composite lining paper in the working range of the coating head during the coating in the step (4).

5. The composite liner paper coating and printing process as claimed in claim 1, wherein the coating liquid in step (4) is an ultraviolet curing oil.

6. The composite lining paper coating and printing processing technology as claimed in claim 1, wherein the oven in the step (7) is provided with an air duct, the air duct is composed of an air inlet part and an air exhaust part, the air inlet part and the air exhaust part are respectively used for ensuring heating in the oven and volatilization of the glue solvent, a concentration detection sensor and a gas pressure gauge are installed on an air exhaust opening of the oven, the temperature in the oven is automatically controlled by a PLC, and a negative pressure valve and an alarm device are installed in an air exhaust opening pipeline and are used for preventing negative pressure from being generated in the oven.

7. The process of claim 1, wherein the printing roller in step (6) is a micro-gravure roller, the micro-gravure roller is opposite to the feeding direction of the composite liner paper, and the composite liner paper is coated in the opposite direction of the micro-gravure roller.

Technical Field

The invention relates to the technical field of lining paper production processes, in particular to a composite lining paper coating and printing processing process.

Background

The inner lining paper is inner packing paper in a packing box, is mostly made of aluminum thin paper, is necessary for preventing the corrugation of the packing paper, namely the packing paper has a tendency of recovering when the corrugation exists, the inner lining paper for the cigarette is the packing paper of an inner lining and a soft cigarette box or a hard cigarette box, and is an important cigarette packing material.

The existing composite lining paper coating and printing processing technology adopts one-time heating and drying for compounding, coating and printing, so that the drying effect is poor, secondly, the traditional printing roller is adopted for printing the composite lining paper singly, and the printing ink cannot be uniformly spread on the composite lining paper, so that the printing effect is influenced, and the requirement of a user cannot be met.

Disclosure of Invention

The invention aims to provide a coating and printing processing technology of composite lining paper, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the composite lining paper coating and printing processing technology comprises the following specific steps:

(1) unreeling: respectively inserting an aluminum foil roll and lining paper on two unreeling devices, and simultaneously paying off the aluminum foil and the lining paper, wherein the paid-off aluminum foil and the lining paper are parallel to each other, and the aluminum foil is positioned right above the lining paper;

(2) compounding: coating an adhesive on the opposite surfaces of the aluminum foil and the lining paper through a glue spreader, and then simultaneously pressing and molding the aluminum foil coated with the adhesive and the lining paper through a composite compression roller to obtain composite lining paper;

(3) and (3) composite drying: conveying the composite lining paper into a drying box through a conveying roller for drying, wherein the drying time is 6-8 seconds, and conveying the composite lining paper out through the conveying roller after the drying is finished;

(4) coating a protective layer; conveying the dried composite lining paper into a coating machine through a conveying roller, and coating a protective layer of 1.5-3g/m on the upper surface of the composite lining paper through a coating head arranged on the coating machine;

(5) drying the protective layer: conveying the composite lining paper coated with the protective layer into an ultraviolet drying box through a conveying roller, and drying the protective layer through an ultraviolet lamp tube arranged in the ultraviolet drying box;

(6) printing: conveying the composite inner lining paper coated with the protective layer into a printer through a conveying roller, and printing the lower surface of the composite inner lining paper through a printing roller;

(7) printing and drying; conveying the printed composite lining paper into an oven through a conveying roller, and drying;

(8) slitting and rolling: and cutting the dried composite inner lining paper and then conveying the cut composite inner lining paper to a winding roller for winding.

As a further scheme of the invention:

the tension of the aluminum foil roll and the lining paper in the step (1) and the step (2) is controlled to be 10-12N, and the conveying speeds of the aluminum foil roll and the lining paper in the step (1) and the step (2) are controlled to be 100-150 m/min.

As a still further scheme of the invention:

the tension of the composite lining paper in the steps (3) to (8) is controlled to be 12-18N, and the conveying speed of the composite lining paper in the steps (3) to (8) is controlled to be 150-250 m/min.

As a still further scheme of the invention:

in the coating process in the step (4), a horizontal bearing plate is arranged in the working range of the coating head on the lower surface of the composite lining paper, so that the flatness of the surface of the protective layer is improved.

As a still further scheme of the invention:

the coating liquid in the step (4) is ultraviolet curing oil.

As a still further scheme of the invention:

and (3) arranging an air duct on the oven in the step (7), wherein the air duct is composed of an air inlet part and an air exhaust part, the air inlet part and the air exhaust part are respectively used for ensuring heating in the oven and volatilization of the glue solvent, a concentration detection sensor and a gas pressure gauge are arranged on an air exhaust opening of the oven, the temperature in the oven is automatically controlled by a PLC, and a negative pressure valve and an alarm device are arranged in an air exhaust opening pipeline and are used for preventing negative pressure from being generated inside the oven.

As a still further scheme of the invention:

and (4) adopting a micro-concave net roller as the printing roller in the step (6), wherein the micro-concave net roller is opposite to the paper feeding direction of the composite lining paper, and the composite lining paper and the micro-concave net roller are coated in a reverse direction.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the coating and printing processing technology for the composite lining paper, the composite drying, the coating drying and the printing drying are separately arranged, so that the processing time and the processing temperature of each step can be independently controlled, and the composite, coating and printing effects of the composite lining paper are effectively guaranteed.

(2) According to the coating and printing processing technology of the composite lining paper, the printing roller is arranged as the micro-concave screen roller, the paper feeding direction of the composite lining paper is opposite to the rotating direction of the micro-concave screen roller, the composite lining paper and the micro-concave screen roller are coated in a reverse direction, certain relative friction is generated, coating liquid is favorably and uniformly spread on the composite lining paper, the liquid transfer amount of the further micro-concave screen roller is large, so that the ink can fully fill fiber gaps and sub-surface concave-convex areas of the composite lining paper, and the coating effect is ensured.

(3) According to the composite lining paper coating and printing processing technology, the horizontal bearing plate is arranged on the lower surface of the composite lining paper, so that the composite lining paper can be supported on one hand, the strength of the composite lining paper is improved, the smoothness of the surface of the composite lining paper can be guaranteed through the support of the horizontal bearing plate, the flowing dispersity of the coating of the composite lining paper is improved, and the smoothness of the surface of the protective layer is improved.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

The composite lining paper coating and printing processing technology comprises the following specific steps:

(1) unreeling: respectively inserting an aluminum foil roll and lining paper on two unreeling devices, and simultaneously paying off the aluminum foil and the lining paper, wherein the paid-off aluminum foil and the lining paper are parallel to each other, and the aluminum foil is positioned right above the lining paper;

(2) compounding: coating an adhesive on the opposite surfaces of the aluminum foil and the lining paper through a glue spreader, and then simultaneously pressing and molding the aluminum foil coated with the adhesive and the lining paper through a composite compression roller to obtain composite lining paper;

(3) and (3) composite drying: conveying the composite lining paper into a drying box through a conveying roller for drying, wherein the drying time is 6-8 seconds, and conveying the composite lining paper out through the conveying roller after the drying is finished;

(4) coating a protective layer; conveying the dried composite lining paper into a coating machine through a conveying roller, and coating a protective layer of 1.5-3g/m on the upper surface of the composite lining paper through a coating head arranged on the coating machine;

(5) drying the protective layer: conveying the composite lining paper coated with the protective layer into an ultraviolet drying box through a conveying roller, and drying the protective layer through an ultraviolet lamp tube arranged in the ultraviolet drying box;

(6) printing: conveying the composite inner lining paper coated with the protective layer into a printer through a conveying roller, and printing the lower surface of the composite inner lining paper through a printing roller;

(7) printing and drying; conveying the printed composite lining paper into an oven through a conveying roller, and drying;

(8) slitting and rolling: and cutting the dried composite inner lining paper and then conveying the cut composite inner lining paper to a winding roller for winding.

The tension of the aluminum foil roll and the lining paper in the step (1) and the step (2) is controlled to be 10-12N, and the conveying speed of the aluminum foil roll and the lining paper in the step (1) and the step (2) is controlled to be 150 m/min.

The tension of the composite lining paper in the steps (3) to (8) is controlled to be 12-18N, and the conveying speed of the composite lining paper in the steps (3) to (8) is controlled to be 150-250 m/min.

And (4) in the coating process of the step (4), a horizontal bearing plate is arranged in the working range of the coating head on the lower surface of the composite lining paper.

The coating liquid in the step (4) is ultraviolet curing oil.

The air channel is arranged on the oven in the step (7), the air channel is composed of an air inlet part and an air exhaust part, the air inlet part and the air exhaust part are respectively used for ensuring heating in the oven and volatilization of the glue solvent, a concentration detection sensor and a gas pressure gauge are arranged on an air exhaust opening of the oven, the temperature in the oven is automatically controlled by a PLC, a negative pressure valve and an alarm device are arranged in an air exhaust opening pipeline and used for preventing negative pressure from being generated inside the oven, the air exhaust pipeline is arranged and can exhaust the volatilized glue solvent in the oven and prevent the glue solvent in the oven from being safely hardened due to overhigh concentration, the concentration of the glue solvent in the oven can be detected through the concentration detection sensor, so that when the concentration in the oven reaches a specified value, the air exhaust air channel is opened for ventilation, the heat damage is reduced, and the heat energy.

And (4) adopting a micro-concave net roller as the printing roller in the step (6), wherein the paper feeding direction of the micro-concave net roller is opposite to that of the composite lining paper, and the composite lining paper and the micro-concave net roller are coated in a reverse direction.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.