CN117086964A - Production process and application of color core plywood - Google Patents
Production process and application of color core plywood Download PDFInfo
- Publication number
- CN117086964A CN117086964A CN202310893090.0A CN202310893090A CN117086964A CN 117086964 A CN117086964 A CN 117086964A CN 202310893090 A CN202310893090 A CN 202310893090A CN 117086964 A CN117086964 A CN 117086964A
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- CN
- China
- Prior art keywords
- color
- middle plate
- veneer
- core plywood
- plate
- 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.)
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- 239000011120 plywood Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000007731 hot pressing Methods 0.000 claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims abstract description 24
- 239000002023 wood Substances 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 239000002655 kraft paper Substances 0.000 claims abstract description 19
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- 229920002635 polyurethane Polymers 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 14
- 238000010030 laminating Methods 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000005034 decoration Methods 0.000 claims description 9
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 7
- 239000005011 phenolic resin Substances 0.000 claims description 7
- 229920001568 phenolic resin Polymers 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 18
- 230000000704 physical effect Effects 0.000 abstract description 4
- 241000894007 species Species 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/06—Manufacture of central layers; Form of central layers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention discloses a production process and application of a color core plywood, comprising the following steps: the method comprises the steps of obtaining a middle plate after solid wood rotary cutting, naturally airing the obtained middle plate, then placing the middle plate into a wood drying chamber for drying, and splicing the middle plate by using a splicing machine; preparing a color veneer by using color kraft paper, coating polyurethane adhesive on the two sides of the obtained middle board, perpendicular or parallel to the grain direction of the bottom board, coating polyurethane adhesive on the two sides of the color veneer, laminating the color veneer at intervals along the paving direction of the middle board to form blanks, and obtaining the plate blanks after cold pressing and hot pressing; and finally, placing the plate blank into a cold press for cold pressing, placing the plate blank after cold pressing into a hot press for hot pressing, and obtaining the color core plywood through surface sanding and edge cutting. The color core plywood obtained by the production process has the advantages of beautiful color level, excellent physical property and low formaldehyde release amount, and can be applied to the fields of modern furniture, cultural relics, children toys and the like.
Description
Technical Field
The invention relates to the technical field of artificial composite boards, in particular to a production process and application of a color core plywood.
Background
With the acceleration of the urban process of China, the civil household industry is vigorous, the whole house customization and the whole-package system are rapidly developed in the industry, and the trend of furniture products from popular aesthetic to personalized customization is more and more obvious, so the demand for highly personalized furniture boards is continuously and rapidly increased.
The plywood is made up by cutting wood segment into single boards or cutting wood Fang Bao into Cheng Baomu, and then using adhesive to glue them to form three-layer or multi-layer plate material, usually using odd-layer single boards, and making the fibre directions of adjacent single boards mutually perpendicular and glue them together. The existing plywood is mostly made of poplar, eucalyptus and other materials, and has the problems of single color, insufficient layers, high formaldehyde release and the like.
In addition, according to the data statistics of the '2022 Chinese home consumer public praise blue book', the Chinese home market scale reaches 4.2 trillion by 2022, and the same ratio is increased by 10.5%; the industrial scale of the decoration artificial board reaches 1 trillion, the same ratio is increased by 6.5%, the household industry commonly uses particle boards and common plywood, the product has been used for about 20 years, the decoration performance of the product is single, the plasticity is not strong, the product uniformity among enterprises is serious, and the product enters the aesthetic fatigue period.
Disclosure of Invention
The invention aims to provide a production process and application of a color core plywood, which have the advantages of beautiful color layers, excellent physical properties and low formaldehyde release amount, and are novel composite boards applicable to the fields of modern furniture, literature art, children furniture, educational toys, home decoration and the like.
In order to achieve the above purpose, the invention provides a production process of a color core plywood, which comprises the following steps:
step one: the method comprises the steps of obtaining a middle plate after solid wood rotary cutting, naturally airing the obtained middle plate, then placing the middle plate into a wood drying chamber for drying, and splicing the middle plate by using a splicing machine;
step two: preparing a color veneer, namely firstly, putting color kraft paper into phenolic resin for impregnation, then stacking fully impregnated color kraft paper in a stacking way, laminating the stacked color kraft paper by a laminating machine, and carrying out hot pressing, sanding and edge cutting on the laminated color kraft paper to obtain the color veneer;
step three: coating polyurethane adhesive on the two sides of the middle plate obtained in the step one, and coating polyurethane adhesive on the two sides of the color single plate in a manner of being perpendicular or parallel to the grain direction of the bottom plate, laminating the polyurethane adhesive on the two sides of the color single plate at intervals along the paving direction of the middle plate to form blanks, and obtaining the plate blanks after cold pressing and hot pressing;
step four: and (3) placing the slab obtained in the step (III) into a cold press for cold pressing, placing the slab subjected to cold pressing into a hot press for hot pressing, and obtaining the color core plywood through surface sanding and edge cutting.
Preferably, in the first step, a middle plate is obtained by rotary cutting of solid wood tree species, and the density of the tree species adopted is 450-700 kg/cm 3 。
Preferably, the thickness of the middle plate after rotary cutting is controlled to be between 1.0 and 4.0mm, the obtained middle plate is naturally aired until the water content is between 20 and 30 percent, then the middle plate is placed into a wood drying chamber for drying, the water content of the middle plate is controlled to be between 6 and 10 percent, and the middle plate is spliced by a splicing machine according to the required size.
Preferably, in the second step, the pressed colored kraft paper is first subjected to high-temperature hot press molding by a hot press to obtain a colored veneer blank, and then is subjected to sanding and edge cutting treatment to obtain a colored veneer, wherein the density of the colored veneer is controlled to be 1000-1200 kg/cm 3 Between them.
Preferably, the thickness of the color veneer is 0.5-4.0 mm, and the color veneer is made of color kraft paper and phenolic resin.
Preferably, the hot pressing pressure of the hot press is controlled between 1.1 and 1.8Mpa, the hot pressing temperature is controlled between 150 and 168 ℃, and the hot pressing rate is 0.6 to 1.0min/mm.
Preferably, in the third step, the polyurethane adhesive is coated on both sides of the middle plate and the color veneer, and the dosage of the polyurethane adhesive is 100-130 g per square meter.
Preferably, in the third step, the density of the obtained slab is controlled to be 700-850 kg/cm 3 Between them.
Preferably, in the fourth step, the slab is cold-pressed and hot-pressed, and then the color core plywood is obtained through surface sanding and edge cutting, wherein the cold-pressing pressure is controlled to be between 0.5 and 1.2Mpa, and the cold-pressing time is 120min; the hot pressing pressure should be controlled between 0.9 and 1.5Mpa, the hot pressing temperature is controlled between 85 and 95 ℃, and the hot pressing rate is 0.8 to 1.2min/mm.
The color core plywood is mainly applied to modern furniture, cultural relics, children furniture, educational toys and home decoration.
Therefore, the production process and the application of the color core plywood have the advantages of beautiful color level, excellent physical property and low formaldehyde release amount, and the color core plywood is a novel composite board applicable to the fields of modern furniture, literature art, children furniture, educational toys, home decoration and the like.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a flow chart of a production process principle of a color core plywood;
fig. 2 is a cross-sectional view of a color core plywood manufactured by a manufacturing process of the color core plywood of the invention.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Example 1
Fig. 1 is a flow chart of a production process principle of the color core plywood, and as shown in fig. 1, the invention provides a production process of the color core plywood, which comprises the following steps:
step one: the method comprises the steps of obtaining a middle plate after solid wood rotary cutting, naturally airing the obtained middle plate, then placing the middle plate into a wood drying chamber for drying, and splicing the middle plate by using a splicing machine;
specifically, in the first step, a solid wood tree species is selected for rotary cutting to obtain a middle plate, preferably a solid wood tree species such as birch and the like, and the density of the adopted tree species is 450-700 kg/cm 3 . The thickness of the middle plate after rotary cutting is controlled between 1.0 and 4.0mm, and the obtained middle plate is naturally aired until the middle plate containsAnd after the water content is between 20 and 30 percent, placing the wood into a wood drying chamber for drying, controlling the water content of the middle plate to be between 6 and 10 percent, and splicing the middle plate through a splicing machine according to the required size.
Step two: preparing a color veneer, namely firstly, putting color kraft paper into phenolic resin for impregnation, then stacking fully impregnated color kraft paper in a stacking way, laminating the stacked color kraft paper by a laminating machine to remove redundant phenolic resin and bubbles, and carrying out hot pressing, sanding and edge cutting treatment on the laminated color kraft paper to obtain the color veneer;
specifically, in the second step, the pressed colored kraft paper is subjected to high-temperature hot press molding by a hot press to obtain a colored veneer blank, and then is subjected to sanding and edge cutting treatment to obtain a colored veneer, wherein the density of the colored veneer is controlled to be 1000-1200 kg/cm 3 Between them. The thickness of the color veneer is 0.5-4.0 mm, and the color veneer is made of color kraft paper and phenolic resin.
In addition, the hot pressing pressure of the hot press is controlled between 1.1 and 1.8Mpa, the hot pressing temperature is controlled between 150 and 168 ℃, and the hot pressing rate is 0.6 to 1.0min/mm.
Step three: coating polyurethane adhesive on the two sides of the middle plate obtained in the step one, and perpendicular or parallel to the texture direction of the bottom plate, coating polyurethane adhesive on the two sides of the color single plate, stacking at intervals along the paving direction of the middle plate to form blanks, cold pressing and hot pressing to obtain a plate blank, wherein the density of the obtained plate blank is controlled to be 700-850 kg/cm 3 Between them;
specifically, in the third step, polyurethane adhesive is coated on the two sides of the middle plate and the color veneer, and the dosage of the polyurethane adhesive per square meter is 100-130 g.
Step four: and (3) placing the slab obtained in the step (III) into a cold press for cold pressing, placing the slab subjected to cold pressing into a hot press for hot pressing, and obtaining the color core plywood through surface sanding and edge cutting.
Specifically, in the fourth step, cold pressing and hot pressing are carried out on the plate blank, and then the color core plywood is obtained through surface sanding and edge cutting, wherein the cold pressing pressure is controlled to be between 0.5 and 1.2Mpa, and the cold pressing time is 120min; the hot pressing pressure should be controlled between 0.9 and 1.5Mpa, the hot pressing temperature is controlled between 85 and 95 ℃, and the hot pressing rate is 0.8 to 1.2min/mm.
The color core plywood processed by the production process provided by the invention has bright color, low formaldehyde release amount and wide application field, can be applied to the field of infants and children, can be used as a decorative panel for kindergarten decoration, and can also be applied to infant study tables and chairs, infant intelligence-developing teaching aids, child's room wardrobe, child's room wallboard, child's room study tables and chairs and child's room decoration boards. The method can also be applied to the field of traditional furniture, and can be used for manufacturing wall panels, household wooden ornaments, modern style furniture and the like.
The color core veneer prepared by the production process is of a layered structure, and is sequentially a solid wood veneer, a color veneer and a solid wood veneer from top to bottom, the number of layers and the thickness of the solid wood veneer, the color veneer and the solid wood veneer can be increased according to different thickness requirements, the solid wood veneer, the color veneer and the solid wood veneer can be subjected to multi-layer cross combination according to production requirements, and the color veneer can be placed on the outermost layer according to requirements.
Therefore, the production process and the application of the color core plywood have the advantages of beautiful color level, excellent physical property and low formaldehyde release amount, and the color core plywood is a novel composite board applicable to the fields of modern furniture, literature art, children furniture, educational toys, home decoration and the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (10)
1. A production process of a color core plywood is characterized in that: the method comprises the following steps:
step one: the method comprises the steps of obtaining a middle plate after solid wood rotary cutting, naturally airing the obtained middle plate, then placing the middle plate into a wood drying chamber for drying, and splicing the middle plate by using a splicing machine;
step two: preparing a color veneer, namely firstly, putting color kraft paper into phenolic resin solution for impregnation, then stacking fully impregnated color kraft paper in a stacking way, laminating the stacked color kraft paper by a laminating machine, and carrying out hot pressing, sanding and edge cutting on the laminated color kraft paper to obtain the color veneer;
step three: coating polyurethane adhesive on the two sides of the middle plate obtained in the step one, and coating polyurethane adhesive on the two sides of the color single plate in a manner of being perpendicular or parallel to the grain direction of the bottom plate, laminating the polyurethane adhesive on the two sides of the color single plate at intervals along the paving direction of the middle plate to form blanks, and obtaining the plate blanks after cold pressing and hot pressing;
step four: and (3) placing the slab obtained in the step (III) into a cold press for cold pressing, placing the slab subjected to cold pressing into a hot press for hot pressing, and obtaining the color core plywood through surface sanding and edge cutting.
2. The process for producing a color core plywood according to claim 1, wherein: in the first step, a solid wood tree species is selected for rotary cutting to obtain a middle plate, and the density of the tree species is 450-700 kg/cm 3 。
3. The process for producing a color core plywood according to claim 2, wherein: the thickness of the middle plate after rotary cutting is controlled between 1.0 and 4.0mm, the obtained middle plate is naturally aired until the water content is between 20 and 30 percent, then the middle plate is placed into a wood drying chamber for drying, the water content of the middle plate is controlled between 6 and 10 percent, and the middle plate is spliced by a splicing machine according to the required size.
4. The process for producing a color core plywood according to claim 1, wherein: in the second step, the pressed colored kraft paper is subjected to high-temperature hot press molding by a hot press to obtainTo a color veneer blank plate, sanding and trimming to obtain a color veneer, wherein the density of the color veneer is controlled to be 1000-1200 kg/cm 3 Between them.
5. The process for producing a color core plywood according to claim 4, wherein: the thickness of the color veneer is 0.5-4.0 mm, and the color veneer is made of color kraft paper and phenolic resin.
6. The process for producing a color core plywood according to claim 4, wherein: the hot pressing pressure of the hot press is controlled between 1.1 and 1.8Mpa, the hot pressing temperature is controlled between 150 and 168 ℃, and the hot pressing rate is 0.6 to 1.0min/mm.
7. The process for producing a color core plywood according to claim 1, wherein: in the third step, polyurethane adhesive is coated on the two sides of the middle plate and the color veneer, and the dosage of the polyurethane adhesive per square meter is 100-130 g.
8. The process for producing a color core plywood according to claim 1, wherein: in the third step, the density of the obtained slab is controlled to be 700-850 kg/cm 3 Between them.
9. The process for producing a color core plywood according to claim 1, wherein: in the fourth step, cold pressing and hot pressing are carried out on the plate blank, and then the color core plywood is obtained through surface sanding and edge cutting, wherein the cold pressing pressure is controlled to be between 0.5 and 1.2Mpa, and the cold pressing time is 120min; the hot pressing pressure should be controlled between 0.9 and 1.5Mpa, the hot pressing temperature is controlled between 85 and 95 ℃, and the hot pressing rate is 0.8 to 1.2min/mm.
10. Use of a process for the production of a color core plywood according to any one of claims 1 to 9, characterized in that: the method is applied to modern furniture, cultural relics, children furniture, intelligence toy and home decoration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310893090.0A CN117086964A (en) | 2023-07-20 | 2023-07-20 | Production process and application of color core plywood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310893090.0A CN117086964A (en) | 2023-07-20 | 2023-07-20 | Production process and application of color core plywood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117086964A true CN117086964A (en) | 2023-11-21 |
Family
ID=88776394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310893090.0A Pending CN117086964A (en) | 2023-07-20 | 2023-07-20 | Production process and application of color core plywood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117086964A (en) |
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2023
- 2023-07-20 CN CN202310893090.0A patent/CN117086964A/en active Pending
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