阅读说明：本技术 一种热敏膜不干胶复合材料的制备方法 (Preparation method of thermosensitive film adhesive sticker composite material ) 是由 陈家路 陈家坤 李洪夫 陈世烛 丁迎飞 于 2020-12-28 设计创作，主要内容包括：本发明公开了一种热敏膜不干胶复合材料的制备方法主要包括以下步骤：底层涂布、面层涂布、顶层涂布、干燥、压光、收卷、分切、包装,首先对热敏原纸进行底层涂布后得到均匀的表面,使得纸张具有一定的隔离能力,可使涂于它上面的热敏涂料停留于此底层表面,不渗入纸基,也促使记录过程中的能量集中于热敏层而不传向纸基,在热敏原纸每进行一次涂布后都对原纸进行压光,使得制品表面平整光滑,并且同时调整了制品厚度,保证了生产质量,本发明通过先对热敏原纸进行底层涂布后再进行面层涂布和顶层涂布,使得不干胶可以在高湿环境中使用。(The invention discloses a preparation method of a thermosensitive film adhesive sticker composite material, which mainly comprises the following steps: the invention relates to a method for manufacturing a thermal sensitive paper, which comprises the following steps of bottom coating, surface coating, top coating, drying, press polishing, rolling, slitting and packaging, wherein the bottom coating is firstly carried out on thermal sensitive base paper to obtain a uniform surface, so that the paper has certain isolation capacity, thermal sensitive paint coated on the thermal sensitive paper can stay on the surface of the bottom layer and does not permeate into the paper base, the energy in the recording process is also concentrated on the thermal sensitive layer and is not transmitted to the paper base, the press polishing is carried out on the base paper after each time of coating on the thermal sensitive base paper, the surface of a product is smooth, the thickness of the product is adjusted at the same time, and the production quality is ensured.)

1. The preparation method of the thermosensitive film adhesive sticker composite material is characterized by comprising the following steps of: the method comprises the following steps: unwinding: unwinding and opening the thermosensitive base paper and the PP synthetic paper by using an unwinding machine, wherein a waste raw material packaging material is generated in the process;

step two: bottom layer coating and drying: applying a bottom coating liquid on the thermal sensitive base paper, moving the paper subjected to bottom coating along a roll shaft, and allowing the paper to enter a bottom coating oven for drying, wherein 4 ovens are arranged for bottom coating, and the thermal sensitive base paper sequentially passes through 4 ovens in the forward moving process;

step three: quantitative moisture scanning 1: detecting the quantification and the moisture content of the paper banner by using a quantitative moisture detector, and keeping the moisture content at 6-7% after drying;

step four: calendering 1: rolling the upper surface and the lower surface of the base-coated heat-sensitive base paper by using a calender of a coating machine;

step five: coating and drying a surface layer: the heat-sensitive base paper after being dried and calendered on the bottom layer is rolled to the coating head part of a roller shaft scraper at a high speed along a roller shaft, the coated paper moves to enter a bottom layer coating oven for drying, 5 ovens are arranged for surface layer coating, and the heat-sensitive paper after being coated on the surface layer sequentially passes through 5 ovens in the forward moving process;

step six: calendering 2: rolling the upper surface and the lower surface of the heat-sensitive base paper coated with the surface by using a calender of a coating machine;

step seven: coating and drying the top layer; continuously rolling the dried and calendered paper at a high speed and moving the paper to a coating head of a roller shaft scraper rod for top layer coating, moving the coated paper into a top layer coating oven for drying, wherein 5 ovens are arranged for surface layer coating, and the paper sequentially passes through 5 ovens in the forward moving process;

step eight: carrying out cloth wetting and drying: continuously rolling the dried thermal paper at a high speed and moving the thermal paper to a coating part of a roller shaft, carrying out back surface coating to control the curling of the thermal paper and eliminate static electricity and dust generated in the recording process, continuously drying after the coating is finished, and arranging 1 drying oven on the back-coated cloth;

step nine: scanning of disease paper: inspecting the paper by using a paper defect system, and removing the defective paper;

step ten: quantitative moisture scanning: checking and controlling the weight and the moisture content of the paper by quantitative moisture scanning;

step eleven: calendering 3: rolling the upper surface and the lower surface of the thermosensitive material after the coating is finished by using a calender of a coating machine;

step twelve: winding: winding the thermosensitive material into a coil material by using a winding machine;

step thirteen: cutting and packaging: and cutting according to the required size of a client and packaging at the same time.

2. The preparation method of the thermosensitive film adhesive sticker composite material as claimed in claim 1, wherein the preparation method comprises the following steps: the temperature of the oven in the second step is set to 200-210 ℃.

3. The preparation method of the thermosensitive film adhesive sticker composite material as claimed in claim 1, wherein the preparation method comprises the following steps: the oven temperature of the step five is set to 100-.

4. The preparation method of the thermosensitive film adhesive sticker composite material as claimed in claim 1, wherein the preparation method comprises the following steps: the oven temperature of the step seven is set to 100-.

5. The preparation method of the thermosensitive film adhesive sticker composite material as claimed in claim 1, wherein the preparation method comprises the following steps: and setting the oven temperature of the step eight to be 80-90 ℃.

6. The preparation method of the thermosensitive film adhesive sticker composite material as claimed in claim 1, wherein the preparation method comprises the following steps: the precision of detecting paper defects of the paper defect system of the ninth step is 0.1-0.5 m/mm.

7. The preparation method of the thermosensitive film adhesive sticker composite material as claimed in claim 1, wherein the preparation method comprises the following steps: each drying oven is heated by natural gas, each drying oven is provided with 1 ventilation pipe, the ventilation pipes are connected to a main ventilation pipe, and waste gas of each drying oven is collected through main ventilation and then discharged through an exhaust funnel.

Technical Field

The invention relates to the technical field of adhesive sticker composite materials, in particular to a preparation method of a thermosensitive film adhesive sticker composite material.

Background

The self-adhesive label material is a composite material which uses paper, film or special material as face material, and its back surface is coated with adhesive and silicon-coated protective paper as base paper. The self-adhesive label has the advantages of no need of brushing adhesive, paste, dipping water, no pollution, short labeling time and the like, and has wide application range, convenience and quickness. The self-adhesive label material is a composite material which takes paper, film or other special materials as the fabrics, the back surface is coated with adhesive, and silicon-coated protective paper is taken as the base paper. And the finished label is formed after processing such as printing, die cutting and the like.

The adhesive sticker materials are formed in different grades due to various coating technologies, the development direction is from traditional roll coating and scraper coating to high-pressure tape-casting coating, the uniformity and the sensitivity of the coating are guaranteed to the maximum extent, bubbles and needle holes are avoided, the coating quality is guaranteed, the technology of tape-casting coating is not mature in China, and the traditional roll coating is mainly adopted in China.

Disclosure of Invention

The invention aims to provide a preparation method of a thermosensitive film adhesive sticker composite material, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the preparation method of the thermosensitive film adhesive sticker composite material comprises the following steps: unwinding: unwinding and opening the thermosensitive base paper and the PP synthetic paper by using an unwinding machine, wherein a waste raw material packaging material is generated in the process;

step two: bottom layer coating and drying: applying a bottom coating liquid on the thermal sensitive base paper, moving the paper subjected to bottom coating along a roll shaft, and allowing the paper to enter a bottom coating oven for drying, wherein 4 ovens are arranged for bottom coating, and the thermal sensitive base paper sequentially passes through 4 ovens in the forward moving process;

step three: quantitative moisture scanning 1: detecting the quantification and the moisture content of the paper banner by using a quantitative moisture detector, and keeping the moisture content at 6-7% after drying;

step four: calendering 1: rolling the upper surface and the lower surface of the base-coated heat-sensitive base paper by using a calender of a coating machine;

step five: coating and drying a surface layer: the heat-sensitive base paper after being dried and calendered on the bottom layer is rolled to the coating head part of a roller shaft scraper at a high speed along a roller shaft, the coated paper moves to enter a bottom layer coating oven for drying, 5 ovens are arranged for surface layer coating, and the heat-sensitive paper after being coated on the surface layer sequentially passes through 5 ovens in the forward moving process;

step six: calendering 2: rolling the upper surface and the lower surface of the heat-sensitive base paper coated with the surface by using a calender of a coating machine;

step seven: coating and drying the top layer; continuously rolling the dried and calendered paper at a high speed and moving the paper to a coating head of a roller shaft scraper rod for top layer coating, moving the coated paper into a top layer coating oven for drying, wherein 5 ovens are arranged for surface layer coating, and the paper sequentially passes through 5 ovens in the forward moving process;

step eight: carrying out cloth wetting and drying: continuously rolling the dried thermal paper at a high speed and moving the thermal paper to a coating part of a roller shaft, carrying out back surface coating to control the curling of the thermal paper and eliminate static electricity and dust generated in the recording process, continuously drying after the coating is finished, and arranging 1 drying oven on the back-coated cloth;

step nine: scanning of disease paper: inspecting the paper by using a paper defect system, and removing the defective paper;

step ten: quantitative moisture scanning: checking and controlling the weight and the moisture content of the paper by quantitative moisture scanning;

step eleven: calendering 3: rolling the upper surface and the lower surface of the thermosensitive material after the coating is finished by using a calender of a coating machine;

step twelve: winding: winding the thermosensitive material into a coil material by using a winding machine;

step thirteen: cutting and packaging: and cutting according to the required size of a client and packaging at the same time.

Preferably, the oven temperature of the second step is set to 200-210 ℃.

Preferably, the oven temperature of the step five is set to 100-.

Preferably, the oven temperature of the seventh step is set to 100-130 ℃.

Preferably, the oven temperature of the step eight is set to 80-90 ℃.

Preferably, the precision of detecting paper surface flaws of the paper defect system of the ninth step is 0.1-0.5 m/mm.

Preferably, each oven is heated by natural gas, each oven is provided with 1 ventilation pipe, the ventilation pipes are connected to the main ventilation pipe, and waste gas of each oven is collected by the main ventilation pipe and then discharged through an exhaust funnel.

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

(1) the heat-sensitive base paper is coated on the bottom layer to obtain a uniform surface, so that the paper has certain isolation capacity, the heat-sensitive coating coated on the heat-sensitive base paper can stay on the surface of the bottom layer and does not permeate into the paper base, and the energy in the recording process is concentrated on the heat-sensitive layer and is not transferred to the paper base.

(2) The base paper is calendered after the thermosensitive base paper is coated once, so that the surface of a product is smooth, the thickness of the product is adjusted, and the production quality is ensured.

(3) The invention firstly coats the bottom layer of the thermosensitive base paper and then coats the surface layer and the top layer, so that the non-setting adhesive can be used in a high-humidity environment.

Drawings

FIG. 1 is a flow chart of the preparation of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present invention provides a technical solution: a preparation method of a thermosensitive film adhesive sticker composite material comprises the following steps: unwinding: unwinding and opening the thermosensitive base paper and the PP synthetic paper by using an unwinding machine, wherein a waste raw material packaging material is generated in the process;

and step two to step eleven are coating processes, coating liquid is coated on the base paper by utilizing coating equipment, the coating equipment comprises a coating liquid storage tank, a coating machine, a roll shaft, a scraper or a scraper and the like and is connected with an oven, the oven is heated by natural gas for supplying heat, and different drying exhaust devices are arranged for controlling the drying air volume according to the drying temperature and the technical control requirements of each step. The production process of the construction project mainly adopts two modes of coating, namely roll shaft scraper coating and roll shaft scraper coating, and three times of coating are carried out, wherein the first time of coating is carried out on the bottom layer, the second time of coating is carried out on the surface layer, and the third time of coating is carried out on the top layer. The base paper is coated in a high-speed rolling process on coating equipment, and after a rolling period is completed, the coating can be completed at each coating point.

Step two: bottom layer coating and drying: applying a bottom layer coating liquid on the thermal sensitive base paper, moving the bottom-coated paper along a roll shaft, and allowing the bottom-coated paper to enter a bottom layer coating oven for drying, wherein 4 ovens are arranged for bottom layer coating, the thermal sensitive base paper sequentially passes through 4 ovens in the forward moving process, the temperature of the ovens is set to 200 plus 210 ℃, each oven is heated by natural gas, each oven is provided with 1 ventilation pipe, the ventilation pipes are connected to a main ventilation pipe, and the waste gas of each oven is collected by the main ventilation and then discharged through an exhaust funnel;

step three: quantitative moisture scanning 1: detecting the quantification and the moisture content of the paper banner by using a quantitative moisture detector, and keeping the moisture content at 6-7% after drying;

step four: calendering 1: rolling the upper surface and the lower surface of the base-coated heat-sensitive base paper by using a calender of a coating machine;

step five: coating and drying a surface layer: the method comprises the following steps that (1) heat-sensitive raw paper which is dried and calendered on a bottom layer is rolled to a coating head part of a roller shaft scraper at a high speed along a roller shaft, the coated paper moves into a bottom layer coating oven for drying, 5 ovens are arranged for surface layer coating, the heat-sensitive paper coated on the surface layer sequentially passes through 5 ovens in the forward moving process, the temperature of each oven is set to be 100-plus 130 ℃, each oven is heated by natural gas, each oven is provided with 1 ventilation pipe, the ventilation pipes are connected to a main ventilation pipe, and waste gas of each oven is collected through the main ventilation and then discharged through;

step six: calendering 2: rolling the upper surface and the lower surface of the heat-sensitive base paper coated with the surface by using a calender of a coating machine;

step seven: coating and drying the top layer; the paper after drying and calendering continuously rolls at a high speed and moves to a roller shaft scraper bar coating head to carry out top layer coating, the coated paper moves to enter a top layer coating oven for drying, 5 ovens are arranged for surface layer coating, the paper sequentially passes through 5 ovens in the forward moving process, the temperature of the ovens is set to be 100 plus 130 ℃, each oven is heated by natural gas, each oven is provided with 1 ventilation pipe, the ventilation pipes are connected to a main ventilation pipe, and waste gas of each oven is collected by main ventilation and then discharged through an exhaust funnel;

step eight: carrying out cloth wetting and drying: continuously rolling the dried thermal paper at a high speed, moving the thermal paper to a roller shaft coating part, coating the back of the thermal paper to control the curling of the thermal paper and eliminate static electricity and dust generated in the recording process, continuously drying the thermal paper after the coating is finished, wherein 1 drying oven is arranged on the back of the thermal paper, the temperature of the drying oven is set to be 80-90 ℃, the drying ovens are heated by natural gas, the drying ovens are respectively provided with 1 ventilation pipe, the ventilation pipes are connected to a main ventilation pipe, and waste gas of each drying oven is collected through the main ventilation and then discharged through an exhaust funnel;

step nine: scanning of disease paper: inspecting the paper by using a paper defect system, and removing defective paper, wherein the precision of detecting paper defects of the paper defect system is 0.1-0.5 m/mm;

step ten: quantitative moisture scanning: checking and controlling the weight and the moisture content of the paper by quantitative moisture scanning;

step eleven: calendering 3: rolling the upper surface and the lower surface of the thermosensitive material after the coating is finished by using a calender of a coating machine;

step twelve: winding: winding the thermosensitive material into a coil material by using a winding machine;

step thirteen: cutting and packaging: and cutting according to the required size of a client and packaging at the same time.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.