CN111877049A - Kraft paper impregnation process - Google Patents
Kraft paper impregnation process Download PDFInfo
- Publication number
- CN111877049A CN111877049A CN202010744243.1A CN202010744243A CN111877049A CN 111877049 A CN111877049 A CN 111877049A CN 202010744243 A CN202010744243 A CN 202010744243A CN 111877049 A CN111877049 A CN 111877049A
- Authority
- CN
- China
- Prior art keywords
- kraft paper
- glue
- basin
- impregnation process
- steps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002655 kraft paper Substances 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005470 impregnation Methods 0.000 title claims abstract description 19
- 239000003292 glue Substances 0.000 claims abstract description 100
- 238000007598 dipping method Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 14
- 238000007790 scraping Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 229920001971 elastomer Polymers 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 13
- 238000004513 sizing Methods 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 6
- 229910000997 High-speed steel Inorganic materials 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 239000000123 paper Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000007639 printing Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/78—Controlling or regulating not limited to any particular process or apparatus
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
- D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
Abstract
The invention discloses a kraft paper glue impregnation process, which changes the glue dipping time by changing the glue feeding point position and the number of rollers in a glue basin on the premise of not changing the kraft paper conveying speed, thereby achieving the purpose of regulating and controlling the gluing amount and being convenient to adapt to the kraft paper glue dipping requirements of different specifications; the glue material is prevented from splashing when passing through a high-speed steel roller during glue extrusion through a glue scraping process before the glue extrusion; the glue basin is changed into a deep glue basin, the actual surface area of kraft paper gum dipping is folded in a three-dimensional mode by increasing the depth of the glue basin, the planar gum dipping surface area is reduced, volatilization of glue materials is reduced, and the glue materials are saved.
Description
Technical Field
The invention relates to the technical field of kraft paper production, in particular to a kraft paper glue impregnation process.
Background
Kraft paper is tough and waterproof packaging paper, is brownish yellow, has wide application range, is commonly used for manufacturing paper bags, envelopes, workbooks, gramophone sleeves, files, sand paper and the like, has flexible and firm quality requirements and high bursting resistance, can bear larger tension and pressure and cannot be broken, therefore, the kraft paper needs to be subjected to a gum dipping process in the production process, the gum dipping aims at improving the erasability of the paper, the surface sizing can reduce the permeation of printing ink, so the printing ink is easy to wipe off, and the anti-friction capability of the paper surface is improved; the printability is improved, if the surface sizing material is too little, the paper absorbs excessive connecting materials in the printing ink during printing, and the print is dull; increasing the strength of the paper, such as burst, folding and tensile strength; the water resistance and the surface strength of the paper are improved, the phenomenon of paper hair falling in offset printing can be reduced, and the difference and deformation of two sides of the paper are reduced.
The impregnated kraft paper can be used for manufacturing laminated boards, namely the fire-proof boards commonly known by us, the glue is thermosetting resin prepared from melamine and phenolic resin, the use of the fire-proof boards is very large, the use is determined by the properties of the fire-proof boards, and the fire-proof boards have very beautiful appearance and extremely strong fire-proof and corrosion-proof capabilities and are widely used for furniture, exterior wall decoration, table tops and the like.
The impregnated kraft paper is generally small in gluing amount, so that the requirement on a gluing system is high, and the existing process can form a small gap by oppositely extruding a steel roller and a rubber roller, so that the gluing amount is well controlled, but the paper is easily broken by squeezing, and great waste is caused; the volatility of the glue is strong, and the volatilization amount and the volatilization speed are equal to the surface area of the glue basin, so that the old glue basin is easy to cause the volatilization of a large amount of glue and waste; due to the fact that the gluing amount is small, the retention time of kraft paper on an impregnation machine is short, namely the running speed of the paper is high, the impregnation time is long, the wet tensile strength of the paper is reduced, paper breakage is easily caused, the time is too short, insufficient penetration can occur, the pressing and pasting effect is affected, except for the quality reason of the paper, the impregnation time can be guaranteed only by reducing the production speed, and the production efficiency is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a kraft paper glue impregnation process, which solves one or more problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a kraft paper glue impregnation process comprises the following process steps:
s1, before introducing the kraft paper which is not dipped into the glue pot, determining a rough glue inlet point, and immersing the kraft paper into the glue material in the glue pot from the glue inlet point;
s2, the kraft paper immersed in the rubber basin in the step S1 is conveyed in a U-shaped route by a transmission roller in the rubber basin, and the kraft paper leaves the rubber material from the other end of the rubber basin;
s3, winding kraft paper which just leaves the sizing material in the step S2 by two steel rollers which are arranged up and down and provided with gaps in an S-shaped route, and scraping the sizing material on the front surface and the back surface of the kraft paper in sequence;
s4, the kraft paper in the step S3 passes through two steel rollers which are horizontally arranged along the vertical direction and leave gaps, and the front surface and the back surface of the kraft paper are squeezed by squeezing simultaneously;
s5, the kraft paper in the step S4 leaves the current machine station through a transmission mechanism;
s6, observing the gluing amount of the kraft paper and the gluing effect of the kraft paper on the transmission roller in the glue basin in the steps S1-S4, moving the last one or more transmission rollers through which the kraft paper passes before being dipped into the glue material according to the glue dipping requirement, adjusting the glue feeding point, and adjusting the glue dipping time and the gluing effect of the kraft paper by changing the glue feeding point on the premise of not changing the transmission speed of the kraft paper;
s7, observing the glue scraping and squeezing effects of the kraft paper in the steps S3-S4 during glue removing, and adjusting the position of the corresponding steel roller;
s8, after the adjustment of the steps S6-S7, the kraft paper is detected, if the kraft paper is unqualified, the kraft paper is readjusted until all gum dipping requirements are met;
s9, discarding or recycling all kraft paper of the steps S1-S8, and repeating the steps S1-S5 on new, ungelatinized and same-specification kraft paper according to the adjustment finally completed in the step S8 to finally obtain qualified and gummed kraft paper.
Furthermore, a sensor is arranged in the glue basin so as to supplement glue in time.
Further, when the kraft paper of different specifications is replaced, the approximate glue inlet point may be determined according to the glue inlet point of the kraft paper in step S1.
Further, in step S2, a roller may be added in the glue pot, so as to increase a route inflection point and prolong the glue dipping time.
Further, the number of the steel rolls may be increased in step S3 to improve the effect of kraft paper frictioning.
Further, the angle formed by the connecting line of the upper steel roller and the lower steel roller in the step S3 with respect to the horizontal or vertical direction and the gap distance between the upper steel roller and the lower steel roller can be changed.
Further, the two steel rolls in step S4 are at the same level and have the same outer diameter.
Further, one or both of the steel rolls in step S4 may be moved left and right.
Further, the glue basin is a deep glue basin.
In conclusion, the invention has the following beneficial effects:
1. on the premise of not changing the conveying speed of the kraft paper, the gum dipping time is changed by changing the gum feeding point position and the number of rollers in the gum basin, so that the purpose of regulating and controlling the gum feeding amount is achieved, and the kraft paper gum dipping requirements of different specifications are conveniently met;
2. the glue material is prevented from splashing when passing through a high-speed steel roller during glue extrusion through a glue scraping process before the glue extrusion;
3. the glue basin is changed into a deep glue basin, the actual surface area of kraft paper gum dipping is folded in a three-dimensional mode by increasing the depth of the glue basin, the planar gum dipping surface area is reduced, volatilization of glue materials is reduced, and the glue materials are saved.
Detailed Description
Example (b):
a kraft paper glue impregnation process comprises the following process steps:
s1, before introducing the kraft paper which is not dipped into the glue to the glue basin, determining a rough glue inlet point, immersing the kraft paper into the glue in the glue basin from the glue inlet point, and arranging a sensor in the glue basin so as to add the glue in time;
replacing kraft paper with different specifications, and determining a rough glue inlet point according to the glue inlet point of the prior kraft paper;
s2, the kraft paper immersed in the rubber basin in the step S1 is conveyed in a U-shaped route by a transmission roller in the rubber basin, and the kraft paper leaves the rubber material from the other end of the rubber basin;
a roller can be added in the rubber basin, so that the inflection point of the route is increased, and the gum dipping time is prolonged;
s3, winding kraft paper which just leaves the sizing material in the step S2 by two steel rollers which are arranged up and down and provided with gaps in an S-shaped route, and scraping the sizing material on the front surface and the back surface of the kraft paper in sequence;
the number of the steel rollers can be increased, and the effect of scraping the kraft paper can be improved;
the angle formed by the connecting line of the upper steel roller and the lower steel roller relative to the horizontal or vertical direction and the gap distance between the upper steel roller and the lower steel roller can be changed;
s4, the kraft paper in the step S3 passes through two steel rollers which are horizontally arranged along the vertical direction and leave gaps, and the front surface and the back surface of the kraft paper are squeezed by squeezing simultaneously;
the two steel rollers are positioned at the same horizontal height and have the same outer diameter;
one or two of the steel rollers can move left and right;
s5, the kraft paper in the step S4 leaves the current machine station through a transmission mechanism;
s6, observing the gluing amount of the kraft paper and the gluing effect of the kraft paper on the transmission roller in the glue basin in the steps S1-S4, moving the last one or more transmission rollers through which the kraft paper passes before being dipped into the glue material according to the glue dipping requirement, adjusting the glue feeding point, and adjusting the glue dipping time and the gluing effect of the kraft paper by changing the glue feeding point on the premise of not changing the transmission speed of the kraft paper;
s7, observing the glue scraping and squeezing effects of the kraft paper in the steps S3-S4 during glue removing, and adjusting the position of the corresponding steel roller;
s8, after the adjustment of the steps S6-S7, the kraft paper is detected, if the kraft paper is unqualified, the kraft paper is readjusted until all gum dipping requirements are met;
s9, discarding or recycling all kraft paper of the steps S1-S8, and repeating the steps S1-S5 on new, ungelatinized and same-specification kraft paper according to the adjustment finally completed in the step S8 to finally obtain qualified and gummed kraft paper.
On the premise of not changing the conveying speed of the kraft paper, the gum dipping time is changed by changing the gum feeding point position and the number of rollers in the gum basin, so that the purpose of regulating and controlling the gum feeding amount is achieved, and the kraft paper gum dipping requirements of different specifications are conveniently met; the glue material is prevented from splashing when passing through a high-speed steel roller during glue extrusion through a glue scraping process before the glue extrusion; the glue basin is changed into a deep glue basin, the actual surface area of kraft paper gum dipping is folded in a three-dimensional mode by increasing the depth of the glue basin, the planar gum dipping surface area is reduced, volatilization of glue materials is reduced, and the glue materials are saved.
It should be noted that the present embodiment is only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications to the embodiment without inventive contribution as required after reading the present specification, but all the modifications are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The kraft paper glue impregnation technology is characterized by comprising the following steps: the process comprises the following steps:
s1, before introducing the kraft paper which is not dipped into the glue pot, determining a rough glue inlet point, and immersing the kraft paper into the glue material in the glue pot from the glue inlet point;
s2, the kraft paper immersed in the rubber basin in the step S1 is conveyed in a U-shaped route by a transmission roller in the rubber basin, and the kraft paper leaves the rubber material from the other end of the rubber basin;
s3, winding kraft paper which just leaves the sizing material in the step S2 by two steel rollers which are arranged up and down and provided with gaps in an S-shaped route, and scraping the sizing material on the front surface and the back surface of the kraft paper in sequence;
s4, the kraft paper in the step S3 passes through two steel rollers which are horizontally arranged along the vertical direction and leave gaps, and the front surface and the back surface of the kraft paper are squeezed by squeezing simultaneously;
s5, the kraft paper in the step S4 leaves the current machine station through a transmission mechanism;
s6, observing the gluing amount of the kraft paper and the gluing effect of the kraft paper on the transmission roller in the glue basin in the steps S1-S4, moving the last one or more transmission rollers through which the kraft paper passes before being dipped into the glue material according to the glue dipping requirement, adjusting the glue feeding point, and adjusting the glue dipping time and the gluing effect of the kraft paper by changing the glue feeding point on the premise of not changing the transmission speed of the kraft paper;
s7, observing the glue scraping and squeezing effects of the kraft paper in the steps S3-S4 during glue removing, and adjusting the position of the corresponding steel roller;
s8, after the adjustment of the steps S6-S7, the kraft paper is detected, if the kraft paper is unqualified, the kraft paper is readjusted until all gum dipping requirements are met;
s9, discarding or recycling all kraft paper of the steps S1-S8, and repeating the steps S1-S5 on new, ungelatinized and same-specification kraft paper according to the adjustment finally completed in the step S8 to finally obtain qualified and gummed kraft paper.
2. The kraft paper impregnation process of claim 1, wherein: a sensor is arranged in the glue basin so as to supplement glue in time.
3. The kraft paper impregnation process of claim 1, wherein: when the kraft paper of different specifications is replaced, the approximate glue inlet point may be determined according to the glue inlet point of the kraft paper in step S1.
4. The kraft paper impregnation process of claim 1, wherein: in step S2, rollers may be added to the glue pot to increase the inflection point of the route and prolong the glue dipping time.
5. The kraft paper impregnation process of claim 1, wherein: in step S3, the number of steel rollers can be increased to improve the effect of kraft paper frictioning.
6. The kraft paper impregnation process of claim 1, wherein: in step S3, the angle formed by the connecting line of the upper and lower steel rolls with respect to the horizontal or vertical direction and the gap distance between the upper and lower steel rolls can be changed.
7. The kraft paper impregnation process of claim 1, wherein: the two steel rolls in step S4 are at the same level and have the same outer diameter.
8. The kraft paper impregnation process of claim 1, wherein: one or both of the steel rolls in step S4 may be moved left and right.
9. The kraft paper impregnation process of claim 1, wherein: the rubber basin is a deep rubber basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010744243.1A CN111877049A (en) | 2020-07-29 | 2020-07-29 | Kraft paper impregnation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010744243.1A CN111877049A (en) | 2020-07-29 | 2020-07-29 | Kraft paper impregnation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111877049A true CN111877049A (en) | 2020-11-03 |
Family
ID=73201928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010744243.1A Pending CN111877049A (en) | 2020-07-29 | 2020-07-29 | Kraft paper impregnation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111877049A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2308623Y (en) * | 1997-10-17 | 1999-02-24 | 莱阳市高科技工业园 | Carbon-free carbon paper making appts. |
| CN101100590A (en) * | 2006-07-04 | 2008-01-09 | 范会芳 | Glue used for floor veneer film immersion and construction method thereof |
| CN102108654A (en) * | 2010-11-25 | 2011-06-29 | 南通四通林业机械制造安装有限公司 | Impregnating and glue squeezing device |
| CN105632656A (en) * | 2016-03-11 | 2016-06-01 | 远东电缆有限公司 | Winding type composite core pultrusion impregnation process for smart energy and special impregnation apparatus therefor |
| CN105887565A (en) * | 2014-12-24 | 2016-08-24 | 天津市雍翔机械设备有限公司 | Improved impregnator gum scraping mechanism |
| CN106049168A (en) * | 2016-06-03 | 2016-10-26 | 太尔胶粘剂(广东)有限公司 | Preparation method of fireproof facing paper |
| CN206763262U (en) * | 2017-05-11 | 2017-12-19 | 东莞市汇驰纸业有限公司 | A kind of corrugated board production glue spreading apparatus |
| CN207103059U (en) * | 2017-07-20 | 2018-03-16 | 许昌绝缘材料研究院有限公司 | A kind of sizer of insulating material |
| CN107988847A (en) * | 2017-12-11 | 2018-05-04 | 浙江海洋大学 | The horizontal soak drying machine of facing paper production |
| CN108755252A (en) * | 2018-06-26 | 2018-11-06 | 成都中润华源装饰材料有限公司 | A kind of gumming device of facing paper sample |
| CN208777079U (en) * | 2018-08-24 | 2019-04-23 | 江苏博大木业有限公司 | High pressure decorative brown paper dipping systems |
| CN209886102U (en) * | 2019-01-23 | 2020-01-03 | 无锡市邦鑫伟业工业技术有限公司 | S-shaped glue scraping rod for impregnated glue basin |
| CN110656537A (en) * | 2019-10-22 | 2020-01-07 | 南通四通林业机械制造安装有限公司 | Impregnating machine |
-
2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2308623Y (en) * | 1997-10-17 | 1999-02-24 | 莱阳市高科技工业园 | Carbon-free carbon paper making appts. |
| CN101100590A (en) * | 2006-07-04 | 2008-01-09 | 范会芳 | Glue used for floor veneer film immersion and construction method thereof |
| CN102108654A (en) * | 2010-11-25 | 2011-06-29 | 南通四通林业机械制造安装有限公司 | Impregnating and glue squeezing device |
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Application publication date: 20201103 |
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