阅读说明：本技术 一种夹心皮纹纸及其生产工艺 (Sandwich leather pattern paper and production process thereof ) 是由 李松志 李浩铭 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种夹心皮纹纸及其生产工艺,该夹心皮纹纸由两层彩胶纸中间夹有箱板纸组成,所述彩胶纸与箱板纸之间由纸胶粘合为一体,该夹心皮纹纸的制作采用特别设计的专用设备,该设备一端设置有牵引卷绕纸带的卷纸装置,一端设置有装置纸卷并可将卷纸放成纸带的放纸装置,在由放纸装置向卷绕纸装置方向之间,顺序设有涂胶装置、压合装置、压纹装置、烘干装置。彩胶纸与箱板纸的需求量大,纸机能持续不断的进行生产,降低生产轮数多而引起的环境污染严重,并且减少维护纸机产生的成本。另外,彩胶纸与箱板纸进行复合相比于纯木浆作为原料成本更低,虽然箱板纸中的灰分更高,但是纸胶固化后变硬反而使夹心皮纹纸更加挺,使用效果更好。(The sandwich dermatoglyph paper is characterized by that it is formed from two layers of colour gummed paper and cardboard paper sandwiched between them, and said colour gummed paper and cardboard paper are bonded into one body by means of paper adhesive, and the sandwich dermatoglyph paper is made up by adopting specially-designed special-purpose equipment, one end of said equipment is equipped with paper-rolling device for drawing and winding paper tape, and its another end is equipped with paper-placing device for placing paper roll and paper tape, and between the paper-placing device and paper-winding device a gluing device, a pressing device, an embossing device and a drying device are successively set. The demand of the color adhesive paper and the cardboard paper is large, the paper machine can continuously produce, the serious environmental pollution caused by a plurality of production rounds is reduced, and the cost for maintaining the paper machine is reduced. In addition, the cost of the color offset paper and the cardboard paper is lower than that of pure wood pulp serving as raw materials, although ash content in the cardboard paper is higher, the paper adhesive becomes hard after solidification, so that the sandwich dermatoglyph paper is firmer, and the using effect is better.)

1. The sandwich dermatoglyph paper comprises color gummed paper, wherein the color gummed paper is embossed, and is characterized in that the sandwich dermatoglyph paper is formed by sandwiching cardboard paper (3) between two layers of color gummed paper, and the color gummed paper and the cardboard paper (3) are bonded into a whole by paper adhesive.

2. The sandwich crepe paper according to claim 1, wherein: the sandwich dermatoglyph paper has the gram weight of more than 180 grams per square meter.

3. The sandwich crepe paper as set forth in claim 2, wherein: the two layers of color adhesive paper are respectively color adhesive paper A (1) and color adhesive paper B (2), and the grammage of the color adhesive paper A (1) and the color adhesive paper B (2) is not less than 55 g/square meter.

4. The sandwich crepe paper according to claim 1, wherein: the boxboard paper (3) has a gram weight of 50-280 g per square meter.

5. The sandwich crepe paper according to claim 1, wherein: the paper adhesive between the color adhesive paper and the cardboard paper (3) is starch adhesive.

6. The sandwich crepe paper according to claim 1, wherein: the glue amount between the color offset paper A (1) and the boxboard paper (3) and the glue amount between the color offset paper B (2) and the boxboard paper (3) are both 5-8 g per square meter.

7. A production process of sandwich dermatoglyph paper, which is used for manufacturing the sandwich dermatoglyph paper of claim 1 and is characterized in that: a specially designed special device is adopted, one end of the device is provided with a paper rolling device (4) for drawing and winding a paper tape, the other end of the device is provided with a paper placing device (5) for placing paper rolls and placing the paper rolls into the paper tape, and a gluing device (6), a pressing device (7), an embossing device (8) and a drying device (9) are sequentially arranged between the paper placing device (5) and the paper winding device; the process flow comprises the following steps: three rolls of roll paper are arranged on a paper placing device (5), and the three rolls of roll paper are as follows: leading out the tape heads of the three rolls of paper rolls, combining and drawing, and sequentially passing through a gluing device (6), a pressing device (7), an embossing device (8) and a drying device (9) to a paper winding device; the device is started to operate, the colored gummed paper A (1), the cardboard paper (3) and the colored gummed paper B (2) are simultaneously pulled by the winding paper device, paper glue is coated between the colored gummed paper A (1) and the cardboard paper (3) when the colored gummed paper A (1), the cardboard paper (3) and the colored gummed paper B (2) pass through the gumming device (6), the paper glue is coated between the cardboard paper (3) and the colored gummed paper B (2) by the gumming device (6), the colored gummed paper A (1), the cardboard paper (3) and the colored gummed paper B (2) coated with the paper glue are pressed into integrated banded paper through the pressing device (7), the integrated banded paper is pressed into sandwiched leather paper through the embossing device (8), and the sandwiched leather paper is dried through the drying device (9) and then wound into a sandwiched paper roll by the winding paper device.

8. The process for producing sandwich crepe paper according to claim 7, wherein the process comprises the following steps: the drying device (9) comprises an advection drying area, an evaporation drying area, a hardening drying area and an odor removing area in sequence.

9. The sandwich dermatoglyph paper and the production process thereof as claimed in claim 8, wherein: the temperature of the advection drying area is 65-75 ℃, the temperature of the evaporation drying area is 75-85 ℃, the temperature of the hardening drying area is 85-95 ℃, and the temperature of the peculiar smell removing area is 70-80 ℃.

10. The sandwich dermatoglyph paper and the production process thereof as claimed in claim 7, wherein: the conveying speed of the color offset paper A (1), the cardboard paper (3) and the color offset paper B (2) on the special equipment is 70-100 m/min.

Technical Field

The invention relates to the technical field of paperboard, in particular to sandwich dermatoglyph paper and a production process thereof.

Background

The cardboard is a paper having a weight of about 120 g or more per square meter, and is used for postcards, cards, slip sheets of paintings and the like. The embossing process is an environment-friendly process, and the production process thereof is free from any pollution, so that the embossing on the paperboard is gradually and widely applied. The embossed card paper can be used for exquisite book and periodical album covers, gift packages, advertisement leaflets, posters, letter paper and the like, and is popular with consumers due to various lines and special artistic effect.

In the prior art, two modes are mainly adopted for producing the paperboard, one mode is that the paperboard with various colors is produced by using a fourdrinier paper machine and pure wood pulp as a raw material and dyeing all the wood pulp with pigment, and the mode has higher production cost; the other is that pure wood pulp is generally used as a raw material through a cylinder mould paper machine, but a multi-layer stacking mode is adopted to manufacture a paperboard with a thicker thickness, and only a plurality of layers of paper close to the surface need to be dyed during dyeing, so that certain cost can be saved, but the production speed is slower. The application range of the paperboard is much smaller than that of copy paper and color adhesive paper, and the paperboard cannot be produced all the time in actual production due to no large demand, so that the maintenance cost of the paperboard is increased due to intermittent production, pollution is increased due to a large number of production rounds, and the cost of environmental protection investment is increased.

Disclosure of Invention

The sandwich dermatoglyph paper consists of two layers of color offset paper and cardboard paper sandwiched between the color offset paper and the cardboard paper, wherein the color offset paper and the cardboard paper are bonded into a whole by paper glue. The demand of the color adhesive paper and the cardboard paper is large, the paper machine can continuously produce, the serious environmental pollution caused by a plurality of production rounds is reduced, and the cost for maintaining the paper machine is reduced. In addition, the cost of the color offset paper and the cardboard paper is lower than that of pure wood pulp serving as raw materials, although ash content in the cardboard paper is higher, the paper adhesive becomes hard after solidification, so that the sandwich dermatoglyph paper is firmer, and the using effect is better.

The technical purpose of the invention is realized by the following technical scheme: the sandwich dermatoglyph paper comprises color gummed paper, wherein the color gummed paper is embossed and is formed by sandwiching cardboard paper between two layers of color gummed paper, and the color gummed paper and the cardboard paper are bonded into a whole by paper glue.

The invention is further configured to: the sandwich dermatoglyph paper has the gram weight of more than 180 grams per square meter.

The invention is further configured to: the two layers of color adhesive paper are respectively color adhesive paper A and color adhesive paper B, and the gram weight of the color adhesive paper A and the gram weight of the color adhesive paper B are both more than or equal to 55 g/square meter.

The invention is further configured to: the box board paper has a gram weight of 50-280 g per square meter.

The invention is further configured to: the paper glue between the color adhesive paper and the cardboard paper is starch glue.

The invention is further configured to: the amount of the paper adhesive between the color offset paper A and the boxboard paper and the amount of the paper adhesive between the color offset paper B and the boxboard paper are both 5-8 g per square meter.

A production process of sandwich dermatoglyph paper adopts specially designed special equipment, one end of the equipment is provided with a paper winding device for drawing and winding a paper tape, the other end of the equipment is provided with a paper placing device for placing paper roll and paper tape, and a gluing device, a pressing device, an embossing device and a drying device are sequentially arranged between the paper placing device and the paper winding device; the process flow comprises the following steps: three rolls of roll paper are arranged on the paper placing device, and the three rolls of roll paper are as follows: leading out the paper tape heads of the three rolls of paper rolls, combining and drawing, and sequentially passing through a gluing device, a pressing device, an embossing device and a drying device to a paper winding device; the device is started to operate, the colored gummed paper A, the boxboard paper and the colored gummed paper B are simultaneously pulled by the winding paper device, the colored gummed paper A, the boxboard paper and the colored gummed paper B are coated with paper glue by the gumming device when passing through the gumming device, the paper glue is coated between the boxboard paper and the colored gummed paper B by the gumming device, the colored gummed paper A, the boxboard paper and the colored gummed paper B coated with the paper glue are pressed into integrated band paper through the pressing device, the integrated band paper is pressed into sandwich dermatoglyph paper through the embossing device, and the sandwich dermatoglyph paper is dried through the drying device and is wound into the sandwich dermatoglyph paper roll by the winding paper device.

The invention is further configured to: the drying device comprises an advection drying area, an evaporation drying area, a hardening drying area and an odor removing area in sequence.

The invention is further configured to: the temperature of the advection drying area is 65-75 ℃, the temperature of the evaporation drying area is 75-85 ℃, the temperature of the hardening drying area is 85-95 ℃, and the temperature of the peculiar smell removing area is 70-80 ℃.

The invention is further configured to: the conveying speed of the color offset paper A, the cardboard paper and the color offset paper B on the special equipment is 70-100 m/min.

Compared with the prior art, the invention has the beneficial effects that: 1. when the gram weight of the sandwich dermatoglyph paper is more than 180 g/square meter, the stereoscopic effect after embossing is better, and the situation of cracking can not occur in the embossing process. 2. The paper adhesive amount can be used as a part of the gram weight of the sandwich dermatoglyph paper, and the cost of the paper adhesive is lower than that of color offset paper and cardboard paper, so that the cost of the sandwich dermatoglyph paper is further reduced. And the paper adhesive is cured and hardened after being dried, so that the sandwich dermatoglyph paper has better bending resistance and wrinkle resistance compared with common card paper. 3. The color adhesive paper A, the boxboard paper and the color adhesive paper B in the just-bonded integrated paper are in a slightly moist state, so that the color adhesive paper A, the boxboard paper and the color adhesive paper B are more easily deformed during embossing, and more obvious concave-convex grains are extruded.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the dedicated apparatus of the present invention.

The reference numbers in the figures mean: 1. color adhesive paper A; 2. color adhesive paper B; 3. cardboard paper; 4. a paper rolling device; 5. a paper placing device; 6. a gluing device; 7. a pressing device; 8. an embossing device; 9. and a drying device.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

The present invention is described below with reference to fig. 1 and 2.

Example 1: the sandwich skin pattern paper has the gram weight of more than 180 grams per square meter, and when the gram weight of the sandwich skin pattern paper is more than 180 grams per square meter, the embossed three-dimensional effect is better, and the situation of breakage cannot occur in the embossing process. The sandwich dermatoglyph paper of this embodiment includes the various adhesive paper, is by pressing from both sides the cardboard paper 3 and constitutes between two-layer various adhesive paper, and the cardboard main material is sulfate wood pulp, useless jute pulp, cotton stalk pulp, waste paper pulp and rice and wheat straw pulp, compares the cost lower with pure wood pulp to cardboard paper 3 is tough and tough more resistant brokenly than various adhesive paper, and tear resistance is better. The color offset paper and the cardboard paper 3 are bonded into a whole by paper adhesive, the cardboard paper 3 is mainly brown or gray, and the color offset paper and the cardboard paper 3 are compounded together and then basically cannot be distinguished from the side surface of the cardboard to form the composite cardboard or form the cardboard by pure wood pulp. The surface of the color adhesive paper is provided with the embossing, so that the sandwich leather-grain paper has better aesthetic property and the hand feeling of the paper surface is more comfortable.

The gram weights of the two layers of color adhesive paper are respectively color adhesive paper A1 and color adhesive paper B2, and the gram weights of the color adhesive paper A1 and the color adhesive paper B2 are not less than 55 g/square meter. The surface color of the color adhesive paper with the weight average of more than or equal to 55g per square meter cannot reflect the color of the internal boxboard paper 3 after the color adhesive paper is compounded with the boxboard paper 3, thereby ensuring the quality of the sandwich leatherette paper. The gram weight of the boxboard paper 3 is 50-280 g/square meter, workers can adjust the gram weight of the boxboard paper 3 according to the gram weight requirement of the sandwich corrugated paper, and the production efficiency can be ensured under the conditions of low production difficulty and low cost. The paper adhesive between the color adhesive paper and the cardboard paper 3 is starch adhesive, and the starch adhesive is natural adhesive prepared by taking starch as a base material. The starch glue has the characteristics of rich sources, low price, convenient use and no toxicity, thereby ensuring that the sandwich dermatoglyph paper and the production process thereof are more environment-friendly. The glue amount between the color glue paper A1 and the boxboard paper 3 and the glue amount between the color glue paper B2 and the boxboard paper 3 are both 5-8 g per square meter. The paper adhesive amount can be used as a part of the gram weight of the sandwich dermatoglyph paper, and the cost of the paper adhesive is lower than that of the color offset paper and the cardboard paper 3, so that the cost of the sandwich dermatoglyph paper is further reduced. And the paper adhesive is cured and hardened after being dried, so that the sandwich dermatoglyph paper has better bending resistance and wrinkle resistance compared with common card paper.

Example 2: a production process of sandwich dermatoglyph paper adopts specially designed special equipment, one end of the equipment is provided with a paper winding device 4 for drawing and winding a paper tape, and the other end is provided with a paper placing device 5 for installing paper roll and placing the paper roll into the paper tape. A gluing device 6, a pressing device 7, an embossing device 8 and a drying device 9 are sequentially arranged between the paper placing device 5 and the paper winding device.

The process flow is as follows: three rolls of paper rolls are arranged on the paper placing device 5, the three rolls of paper are respectively color adhesive paper A1, boxboard paper 3 and color adhesive paper B2 from bottom to top, the paper tape heads of the three rolls of paper rolls are led out, merged and drawn, and sequentially pass through the gluing device 6, the pressing device 7, the embossing device 8, the drying device 9 and the paper rolling device 4. The color offset paper A1, the liner board 3 and the color offset paper B2 are already finished sandwich crepe paper when being wound on the winding device 4.

The equipment is started to operate, the color offset paper A1, the cardboard paper 3 and the color offset paper B2 are simultaneously drawn by the winding paper device, and the moving speeds of the color offset paper A1, the cardboard paper 3 and the color offset paper B2 are the same. The conveying speed of the color offset paper A1, the cardboard paper 3 and the color offset paper B2 on the special equipment is 70-100 m/min, the production efficiency of the sandwich leather-grain paper is not too low due to the skill in the conveying speed range, the compounding of all layers can be guaranteed to be in place, the sandwich leather-grain paper is dried fully, and the sandwich leather-grain paper on the paper rolling device 4 is prevented from being stuck together by glue which is not cured. The color offset paper A1, the cardboard paper 3 and the color offset paper B2 are coated with paper glue by the gluing device 6 between the color offset paper A1 and the cardboard paper 3 when passing through the gluing device 6, and the paper glue is coated by the gluing device 6 between the cardboard paper 3 and the color offset paper B2, in the embodiment, the paper glue is respectively coated on one surfaces of the color offset paper A1 and the color offset paper B2 close to the cardboard paper 3, and the color offset paper A1, the cardboard paper 3 and the color offset paper B2 coated with the paper glue are pressed into a whole band of paper by the pressing device 7. The color offset paper A1, the boxboard paper 3 and the color offset paper B2 are bonded together to form an integral paper strip, and the integral paper strip is pressed into the sandwich leather-grain paper by the embossing device 8. Due to the paper adhesive, the just-bonded colored adhesive paper A1, the boxboard paper 3 and the colored adhesive paper B2 in the integrated tape paper are in a slightly wet state, so that the integrated tape paper is easier to deform during embossing, and more obvious concave-convex lines are pressed. Compare in traditional card paper production flow, the dry card paper of card paper production back goes in addition to go on the impressed watermark more can extrude good-looking effect. The sandwich dermatoglyph paper is dried by a drying device 9, and the drying device 9 sequentially comprises a advection drying area, an evaporation drying area, a hardening drying area and a peculiar smell removing area. The temperature of the advection drying area is 65-75 ℃, the temperature of the evaporation drying area is 75-85 ℃, the temperature of the hardening drying area is 85-95 ℃, and the temperature of the peculiar smell removing area is 70-80 ℃. The hot air moving direction of the advection drying area is parallel to the conveying direction of the sandwich dermatoglyph paper, the hot air is relatively softer when being blown to the sandwich dermatoglyph paper, the sandwich dermatoglyph paper is wet and soft at the moment, and the advection drying area can prevent the damage to the paper well when preliminarily drying the sandwich dermatoglyph paper. The evaporation drying area evaporates moisture in the paper through heating to escape, and the moisture in the paper can be dried quickly in the drying area. The hardening drying area adopts a contact drying mode to completely solidify and harden the paper glue in the sandwich leather-grain paper, so that the color offset paper A1, the boxboard paper 3 and the color offset paper B2 are tightly combined into a whole. The sandwich leather-grain paper in the peculiar smell removing area is blown, so that the temperature of the sandwich leather-grain paper is reduced, and peculiar smell generated in the drying process is absorbed from the drying device 9. And after drying, winding the sandwich dermatoglyph paper into a sandwich dermatoglyph paper roll by a winding paper device.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and those modifications and variations assumed in the above are also considered to be within the protective scope of the present invention.