阅读说明：本技术 一种超平滑烟用内衬纸的制备工艺 (Preparation process of ultra-smooth lining paper for cigarettes ) 是由 赵翰林 许永石 于 2020-08-18 设计创作，主要内容包括：本发明公开了一种超平滑烟用内衬纸的制备工艺,超平滑烟用内衬纸包括纸张,在纸张的一面上设置有复合转移涂料层,在复合转移涂料层上设置有镀铝层,在镀铝层的外表面设置有面涂层；制作工艺包括复合、剥离、真空镀铝和面涂。本发明的产品结构简单、设计合理,本发明的工艺步骤易于操作,且生产出的纸张平滑度高,生产成本较低。(The invention discloses a preparation process of lining paper for ultra-smooth cigarettes, which comprises paper, wherein a composite transfer coating layer is arranged on one surface of the paper, an aluminum coating layer is arranged on the composite transfer coating layer, and a surface coating layer is arranged on the outer surface of the aluminum coating layer; the manufacturing process comprises compounding, stripping, vacuum aluminum plating and surface coating. The product of the invention has simple structure and reasonable design, the process steps of the invention are easy to operate, and the produced paper has high smoothness and lower production cost.)

1. A preparation technology of inner lining paper for ultra-smooth cigarettes is characterized in that: the memory paper comprises paper, wherein a composite transfer coating layer is arranged on one surface of the paper, an aluminized layer is arranged on the composite transfer coating layer, and a top coating layer is arranged on the outer surface of the aluminized layer, and the preparation steps are as follows:

step 1, compounding: carrying out composite transfer primary coating by using a PET film; coating a composite transfer coating on a PET (polyethylene terephthalate) film by a closed scraper of a reticulate pattern roller of a closed roller coating device, then bonding the PET film with paper, and drying in a baking oven in a segmented manner to form a semi-finished product A;

step 2, stripping: drying and curing, peeling the semi-finished product A in the step 1, peeling off the PET film from the paper, transferring the composite transfer coating to the surface to obtain a semi-finished product B, and recovering the PET film;

step 3, vacuum aluminum plating: placing the semi-finished product B in a vacuum chamber of a continuous aluminum plating machine, heating by a resistance wire under the condition that the vacuum degree is less than or equal to 5.0 multiplied by 10 < -1 > Pa, melting an aluminum wire and continuously evaporating the aluminum wire onto the composite transfer coating layer to form an aluminum-plated layer, wherein the thickness of the aluminum-plated layer is 400-one 450 angs;

step 4, surface coating: transferring the surface coatings with different colors to the surface of the aluminum-plated layer through the anilox roller according to the requirements of customers, and drying the surface coatings in sections through the drying box to obtain a finished product.

2. The preparation process of the lining paper for the ultra-smooth cigarette as claimed in claim 2, wherein: in the step 1, the drying box is divided into five sections to dry the PET film and the paper which are bonded together, wherein the first section is at 80-90 ℃, the second section is at 90-100 ℃, the third section is at 100-120 ℃, the fourth section is at 80-100 ℃, and the fifth section is at 80-100 ℃.

3. The preparation process of the lining paper for the ultra-smooth cigarette as claimed in claim 2, wherein: the composite transfer coating in the step 1 comprises the following components: 8-11 parts of modified phenyl acrylate, 2-3 parts of deionized water, 0.8-1 part of ethanol, 0.5-1 part of ammonia water and 1.0-1.5 parts of ammonium persulfate.

4. The process for preparing the lining paper for the ultra-smooth cigarette as claimed in claim 4, wherein: in the step 1, the dry weight of the composite transfer base coat is 4-6 g/m²。

5. The preparation process of the lining paper for the ultra-smooth cigarette as claimed in claim 2, wherein: before peeling off the PET film, the semi-finished product A is placed at the temperature of 23 +/-5 ℃ and the humidity is controlled within 65 +/-15% RH.

6. The preparation process of the lining paper for the ultra-smooth cigarette as claimed in claim 2, wherein: in step 4, the dry weight of the surface coating is 0.5-1.5 g.

7. The preparation process of the lining paper for the ultra-smooth cigarette as claimed in claim 2, wherein: and 4, drying the oven in five sections, wherein the temperature of the first section is 60-80 ℃, the temperature of the second section is 65-85 ℃, the temperature of the third section is 70-90 ℃, the temperature of the fourth section is 60-80 ℃, and the temperature of the fifth section is 50-70 ℃.

8. The preparation process of the lining paper for the ultra-smooth cigarette as claimed in claim 2, wherein: the closed roller coating device (5) comprises a closed scraper cavity (51) and a reticulation roller (52), wherein a glue inlet cavity (511), a glue outlet cavity (512) and a glue storage cavity (513) are arranged in the closed scraper cavity (51), the glue outlet cavity (512) is arranged above the glue inlet cavity (511), a partition plate (514) is arranged in the glue storage cavity (513), the glue storage cavity (513) is divided into a lower cavity and an upper cavity by the partition plate (514), the upper cavity is communicated with the glue outlet cavity (512), the glue inlet cavity (511) is communicated with the lower cavity, one side, close to the reticulation roller (52), of the closed scraper cavity (51) is provided with an upper inclined surface and a lower inclined surface, the upper inclined surface and the lower inclined surface are both provided with scraper fixing grooves, and a scraper (519) is fixed in the scraper fixing grooves by a scraper fixing plate (515), the closed scraper cavity (51) is provided with a plurality of rubber inlet pipes (516) and water inlet pipes communicated with the rubber inlet cavity (511), and the closed scraper cavity (51) is provided with a rubber outlet pipe (517) and a water outlet pipe communicated with the rubber outlet cavity (512).

9. The process for preparing the lining paper for the ultra-smooth cigarette as claimed in claim 8, wherein: all be provided with sealing member (518) on closed scraper cavity (51) right flank and the left flank, all be provided with closing plate and sealed apron in closed scraper cavity (51) left and right sides, sealed apron passes through the screw fixation and seals on closed scraper cavity (51), sealing member (518) are fixed the closing plate with between the sealed apron, the closing plate with all be provided with fixed recess on the relative side of sealed apron be provided with on sealing member (518) with recess complex arch, through the recess with protruding cooperation is fixed sealing member (518).

10. The process for preparing the lining paper for the ultra-smooth cigarette as claimed in claim 9, wherein: the upper cavity is communicated with the glue outlet cavity (512) through a plurality of holes, and the glue inlet cavity (511) is communicated with the lower cavity through a plurality of holes.

Technical Field

The invention relates to lining paper for cigarettes, in particular to a preparation process of ultra-smooth lining paper for cigarettes.

Background

As an initial packaging layer of cigarettes, the cigarette packaging film has the main functions of blocking fragrance, moisture, shading and the like, and can also show attractive characteristics. At present, lining paper of three processes in the market is composite aluminum foil lining base paper, vacuum aluminum plating lining base paper and transfer lining base paper.

The composite aluminum foil lining base paper is formed by bonding aluminum foil and paper together by adopting aluminum foil glue. The disadvantage is that the glue consumption is large, and the wet coating amount is 5-6g/m²The used aluminum foil is not easy to degrade and recycle, and does not meet the requirements of future environment-friendly materials.

The manufacturing process of the vacuum aluminized lining base paper is primary coating → aluminizing → top coating; the primary coating is to coat the coating on the surface of the base paper by using an anilox roller, and the coating amount of the anilox roller is low, so that the filling and leveling property of the base paper is poor. And then vacuum aluminizing is carried out on the paper after the primary coating, and after the aluminizing, the surface coating is transferred to the surface of the aluminum layer through an anilox roller. The disadvantage is the presence of microporosity on the surface of the aluminum layer and primer layer. Smoothness and poor brightness.

The manufacturing process of the transfer lining base paper is film coating → compounding → peeling → top coating; coating the transfer film-forming coating on the surface of PET, then aluminizing the coated surface of the film, and compounding the PET and the base paper together through composite glue; after drying and curing, peeling off the PET and the paper, and finally transferring the surface coating to the composite glue of the base paper through an anilox roller. The disadvantage is that the front end needs to be coated with film, which results in high production cost.

Disclosure of Invention

In order to solve the above purposes, the invention provides a preparation process of the ultra-smooth cigarette lining paper, which has the advantages of strong environmental protection, high surface smoothness, high brightness and low production cost.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the invention relates to a preparation process of lining paper for ultra-smooth cigarettes, which comprises paper, wherein a composite transfer coating layer is arranged on one surface of the paper, an aluminized layer is arranged on the composite transfer coating layer, and a top coating layer is arranged on the outer surface of the aluminized layer, and the preparation process comprises the following steps:

step 1, compounding: carrying out composite transfer primary coating by using a PET film; coating a composite transfer coating on a PET (polyethylene terephthalate) film by a closed scraper of a reticulate pattern roller of a closed roller coating device, then bonding the PET film with paper, and drying in a baking oven in a segmented manner to form a semi-finished product A;

step 2, stripping: drying and curing, peeling the semi-finished product A in the step 1, peeling off the PET film from the paper, transferring the composite transfer coating to the surface to obtain a semi-finished product B, and recovering the PET film;

step 3, vacuum aluminum plating: placing the semi-finished product B in a vacuum chamber of a continuous aluminum plating machine, heating by a resistance wire under the condition that the vacuum degree is less than or equal to 5.0 multiplied by 10 < -1 > Pa, melting an aluminum wire and continuously evaporating the aluminum wire onto the composite transfer coating layer to form an aluminum plating layer, wherein the aluminum plating layer has the thickness

Step 4, surface coating: transferring the surface coatings with different colors to the surface of the aluminum-plated layer through the anilox roller according to the requirements of customers, and drying the surface coatings in sections through the drying box to obtain a finished product.

The invention is further improved in that: in the step 1, the drying box is divided into five sections to dry the PET film and the paper which are bonded together, wherein the first section is at 80-90 ℃, the second section is at 90-100 ℃, the third section is at 100-120 ℃, the fourth section is at 80-100 ℃, and the fifth section is at 80-100 ℃.

The invention is further improved in that: the composite transfer coating in the step 1 comprises the following components: 8-11 parts of modified phenyl acrylate, 2-3 parts of deionized water, 0.8-1 part of ethanol, 0.5-1 part of ammonia water and 1.0-1.5 parts of ammonium persulfate.

The invention is further improved in that: in the step 1, the dry weight of the composite transfer base coat is 4-6 g/m²。

The invention is further improved in that: before peeling off the PET film, the semi-finished product A is placed at the temperature of 23 +/-5 ℃ and the humidity is controlled within 65 +/-15% RH.

The invention is further improved in that: in step 4, the dry weight of the surface coating is 0.5-1.5 g.

The invention is further improved in that: and 4, drying the oven in five sections, wherein the temperature of the first section is 60-80 ℃, the temperature of the second section is 65-85 ℃, the temperature of the third section is 70-90 ℃, the temperature of the fourth section is 60-80 ℃, and the temperature of the fifth section is 50-70 ℃.

The invention is further improved in that: closed roller coat device includes closed scraper cavity and reticulation roller, it glues the chamber to be provided with into in closed scraper cavity, go out to glue the chamber and glue the chamber with storing up, it sets up in advancing gluey chamber top to go out to glue the chamber, be provided with the division board in storing up gluey intracavity, the division board will store up gluey chamber and divide into cavity and last cavity down, it glues chamber intercommunication with going out to go up the cavity, it glues chamber and cavity intercommunication down to advance, be provided with inclined plane and the decline inclined plane on one side that closed scraper cavity is close to the reticulation roller, all be provided with the scraper fixed slot on last slope and lower inclined plane, the scraper fixed plate is fixed the scraper in the scraper fixed slot, be provided with on closed scraper cavity and advance the several of gluey chamber intercommunication and advance rubber tube and inlet tube, be provided with the play rubber tube.

The invention is further improved in that: all be provided with the sealing member on closed scraper cavity right flank and the left surface, all be provided with closing plate and sealed apron in the closed scraper cavity left and right sides, sealed apron passes through the screw fixation on closed scraper cavity, and the sealing member is fixed between closing plate and sealed apron, all is provided with fixed recess on the closing plate and the relative side of sealed apron, be provided with on the sealing member with recess complex arch, through recess and the protruding fixed sealing member of cooperation.

The invention is further improved in that: the upper cavity is communicated with the glue outlet cavity through a plurality of holes, and the glue inlet cavity is communicated with the lower cavity through a plurality of holes.

The invention has the beneficial effects that: according to the invention, the concave-convex of the paper is filled up by the composite transfer coating, and the composite transfer coating layer is formed on the paper, so that the surface of the paper is smoother, the aluminized layer has the functions of blocking outside air and preventing the paper from being wet, and the surface pattern layer has the functions of preventing the aluminum layer from being oxidized and being attractive. The closed roller coating device adopted by the invention can seal the coating in the closed scraper cavity all the time, can avoid the loss of volatile moisture and solvent in the feed liquid, ensures the viscosity of the coating, and can control the coating dry quantity of the coating, and the surface smoothness of the paper can be controlled because the dry quantity is controlled.

The product of the invention has simple structure and reasonable design, the process steps of the invention are easy to operate, and the produced paper has high smoothness and lower production cost.

Drawings

FIG. 1 is a schematic view of a closed roll coating apparatus.

Figure 2 is a schematic view of a closed blade chamber.

Fig. 3 is a schematic view of the left gasket.

Wherein: 5-closed roller coating device, 51-closed scraper cavity, 511-glue inlet cavity, 512-glue outlet cavity, 513-glue storage cavity, 514-partition plate, 515-scraper fixing plate, 516-glue inlet tube, 517-glue outlet tube, 518-sealing element, 519-scraper and 52-anilox roller.

Detailed Description

For the purpose of enhancing an understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1-3, the invention is a preparation process of lining paper for ultra-smooth cigarettes, the lining paper comprises paper, a composite transfer coating layer is arranged on one side of the paper, an aluminum coating layer is arranged on the composite transfer coating layer, and a top coating layer is arranged on the outer surface of the aluminum coating layer, and the preparation steps are as follows:

step 1, compounding: carrying out composite transfer primary coating by using a PET film; coating a composite transfer coating on a PET (polyethylene terephthalate) film by a closed scraper of a reticulate pattern roller of a closed roller coating device, then bonding the PET film with paper, and drying in a baking oven in a segmented manner to form a semi-finished product A; wherein, the drying box is divided into five sections for drying the PET film and the paper which are bonded together, the first section is 80-90 ℃, the second section is 90-100 ℃, the third section is 100-; after drying, the dry weight of the composite transfer base coat is 4-6 g/m²；

The composite transfer coating of the composite transfer base coat comprises 8-11 parts of modified phenyl acrylate, 2-3 parts of deionized water, 0.8-1 part of ethanol, 0.5-1 part of ammonia water and 1.0-1.5 parts of ammonium persulfate.

Step 2, stripping: drying and curing, peeling the semi-finished product A in the step 1, peeling off the PET film from the paper, transferring the composite transfer coating to the surface to obtain a semi-finished product B, and recovering the PET film; before peeling off the PET film, the placing temperature of the semi-finished product A is 23 +/-5 ℃, and the humidity is controlled within 65 +/-15% RH;

step 3, vacuum aluminum plating: placing the semi-finished product B in a vacuum chamber of a continuous aluminum plating machine, heating by a resistance wire under the condition that the vacuum degree is less than or equal to 5.0 multiplied by 10 < -1 > Pa, melting an aluminum wire and continuously evaporating the aluminum wire onto the composite transfer coating layer to form an aluminum plating layer, wherein the thickness of the aluminum plating layer is

Step 4, surface coating: transferring the surface coatings with different colors to the surface of the aluminum-plated layer through the anilox roller according to the requirements of customers, and drying the surface coatings in sections through the drying box to obtain a finished product. The oven is divided into five sections for drying, wherein the temperature of the first section is 60-80 ℃, the temperature of the second section is 65-85 ℃, the temperature of the third section is 70-90 ℃, the temperature of the fourth section is 60-80 ℃, and the temperature of the fifth section is 50-70 ℃. After drying, the coating amount is 0.5-1.5 g.

The product is tested for smoothness, dynamic friction coefficient and brightness, and the test result is compared with the lining paper for the common cigarette as follows:

the smoothness of the product is far higher than that of common lining paper, the dynamic friction coefficient of the product is smaller than that of the common lining paper, and the brightness of the product is higher than that of the common product.

The closed type roller coating device 5 adopted in the steps 1 and 4 is used for coating, the closed type roller coating device 5 comprises a closed type scraper cavity 51 and an anilox roller 52, a glue inlet chamber 511, a glue outlet chamber 512 and a glue storage chamber 513 are arranged in the closed scraper chamber 51, the glue outlet chamber 512 is arranged above the glue inlet chamber 511, a partition plate 514 is arranged in the glue storage chamber 513, the partition plate 514 divides the glue storage chamber 513 into a lower chamber and an upper chamber, the upper chamber is communicated with the glue outlet chamber 512, the glue inlet chamber 511 is communicated with the lower chamber, an upper inclined surface and a lower inclined surface are provided at a side of the closed blade chamber 51 near the anilox roller 52, scraper fixing grooves are formed on both the upper inclined surface and the lower inclined surface, a scraper 519 is fixed in the scraper fixing groove by a scraper fixing plate 515, a plurality of rubber inlet pipes 516 and water inlet pipes which are communicated with the rubber inlet cavity 511 are arranged on the closed scraper cavity body 51, a glue outlet pipe 517 and a water outlet pipe which are communicated with the glue outlet cavity 512 are arranged on the closed scraper cavity 51. Because the length of going out gluey chamber 512 is shorter than the length of advancing gluey chamber 511, it stretches out at the both ends of advancing gluey chamber 511 to advance rubber tube 516 and inlet tube setting, all be provided with sealing member 518 on closed scraper cavity 51 right flank and the left surface, all be provided with closing plate and sealed apron in the closed scraper cavity 51 left and right sides, sealed apron passes through the fix with screw on closed scraper cavity 51, sealing member 518 fixes between closing plate and sealed apron, all be provided with fixed recess on the side that the closing plate is relative with sealed apron, be provided with on sealing member 518 with recess complex arch, through recess and the fixed sealing member 518 of protruding cooperation. The upper cavity is communicated with the glue outlet cavity 512 through a plurality of holes, and the glue inlet cavity 511 is communicated with the lower cavity through a plurality of holes.

When the closed scraper cavity 51 needs to be cleaned, water is injected into the closed scraper cavity 51 through the water inlet pipe, sewage is discharged from the water outlet pipe, and all parts in the closed scraper cavity 51, which are in contact with the coating, can be cleaned. The glue inlet pipe 516 is connected with a pump, the paint in the paint barrel is conveyed into the glue inlet cavity 511 through the pump, when the liquid level of the paint is higher than the hole in the glue inlet cavity 511, the paint enters the lower cavity from the hole, when the liquid level of the paint in the lower cavity is higher than the upper end of the partition plate 514, the paint enters the upper cavity, when the liquid level of the paint in the upper cavity is higher than the height of the hole in the upper cavity communicated with the glue outlet cavity 512, the paint enters the glue outlet cavity 512, and when the paint in the glue outlet cavity 512 is filled, the paint flows back into the paint barrel from the glue outlet pipe 516. The coating material may be fed into the enclosed blade chamber 51 once at intervals until the coating material is discharged from the glue outlet 517. The upper end of the partition plate 514 is higher than the lower end of the scraper at the upper end, so that in the case that the coating is easily foamed, a continuously-conveyed state is maintained in the coating process, and the problem of uneven coating on the surface of the anilox roller can be avoided.

Because moisture and solvent in the coating have volatility, the coating exposes and makes solvent and moisture lose in the air easily, in case solvent and moisture lose, the coating will become thick, viscosity increases to can lead to the dry volume of compound transfer coating can change, lead to the coating thickness on paper surface different, also can increase the consumption of coating simultaneously, adopt closed scraper to remain all the time to seal the coating in closed scraper cavity 51, avoid the coating to directly expose in the air, can effectively guarantee the viscosity of coating.

The product of the invention has simple structure and reasonable design, the process steps of the invention are easy to operate, and the produced paper has high smoothness and lower production cost.