WO2021196263A1 - Plaque imprimée 3d à base de spc et son procédé de préparation - Google Patents

Plaque imprimée 3d à base de spc et son procédé de préparation Download PDF

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Publication number
WO2021196263A1
WO2021196263A1 PCT/CN2020/084275 CN2020084275W WO2021196263A1 WO 2021196263 A1 WO2021196263 A1 WO 2021196263A1 CN 2020084275 W CN2020084275 W CN 2020084275W WO 2021196263 A1 WO2021196263 A1 WO 2021196263A1
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WO
WIPO (PCT)
Prior art keywords
layer
spc
pattern
printing
background film
Prior art date
Application number
PCT/CN2020/084275
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English (en)
Chinese (zh)
Inventor
唐道远
Original Assignee
安徽森泰木塑科技地板有限公司
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Publication of WO2021196263A1 publication Critical patent/WO2021196263A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/536—Hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B32B2419/04—Tiles for floors or walls

Definitions

  • the invention relates to a printing plate, in particular to an SPC-based 3D printing plate and a preparation method thereof. It belongs to the technical field of SPC-based indoor flooring.
  • the process of producing SPC-based indoor flooring in the prior art is: the extruder first extrudes the PVC-containing SPC substrate, and then separately heats the PVC base film, PVC color film, PVC wear-resistant layer and SPC substrate through a four-roll calender. Compressed and compounded. In the process of pressing and pasting, the flowers are synchronized to achieve the effect of imitating wood texture. But this has the following disadvantages: (1) To produce the floor, you need to order the PVC color film first, and the PVC color film is scheduled first, which causes the production cycle to be too long; (2) To solve the problem of the production cycle is too long, usually through standing inventory.
  • the Chinese invention patent application with application number 201811628557.4 discloses a 3D effect PVC decorative board and a production method of 3D printing.
  • the production process of the board is as follows: 1) Clean the PVC board substrate; 2) Coat the surface of the PVC board substrate with UV primer; 3) Dry and cure the UV primer; 4) Apply white UV topcoat; 5) UV White paint is cured and dried; 6) Flatbed inkjet printer prints patterns; 7) Coated UV wear-resistant paint; 8) UV wear-resistant paint is cured and dried; 9) Flatbed inkjet printer prints the concave-convex effect layer; then UV lamp irradiates and cures; 10 ) Coating UV topcoat; 11) Curing and drying.
  • the present invention aims to solve the above-mentioned technical problems, thereby providing an SPC-based 3D printing board.
  • the board has a hierarchical structure that is different from any kind of board in the prior art, and this specific hierarchical structure enables the board of the present invention to increase the characteristics of high production efficiency on the basis of maintaining the performance characteristics of the original board.
  • An SPC-based 3D printing board comprising an SPC substrate layer, a color layer presented on the SPC substrate layer by 3D printing, and a UV protection layer covering the color layer;
  • the substrate layer It includes an SPC core layer and a background film layer compounded with the SPC core layer by co-extrusion;
  • the background film layer is also embossed with wood grain, pattern or pattern texture;
  • the SPC substrate layer includes an SPC core layer and a background film layer compounded with the SPC core layer by in-line pressing, and also includes a resin concave-convex effect layer, the resin concave-convex effect layer is disposed on the color layer And the UV protection layer.
  • the background film layer that can be made of PVC material is compounded on the SPC substrate layer, which effectively replaces the prior art, "1) clean the PVC board substrate; 2) on the PVC board substrate The surface is coated with UV primer; 3) UV primer is dried and cured; 4) white UV topcoat is coated; 5) UV white paint is cured and dried; "a series of operations simplifies the production process, thereby improving production efficiency.
  • a background film layer can be attached to the core layer first, which is equivalent to step 2 in the Chinese invention patent of 201811628557.4 ) ⁇ Step 5), and you can also directly engrave the background film with a printing roller, which is equivalent to completing steps 7) ⁇ 9), and then print the concave-convex effect layer through a flat-panel inkjet printer. Finish the effect of step 6); finally apply a UV protective layer to effectively protect the printed uneven effect layer.
  • the UV protection layer is equivalent to completing steps 7) to 8) and steps 10) to 11) at the same time. It can be seen that the present invention greatly shortens the process and greatly improves the operability of the process.
  • the pattern is printed first, and then the pattern is printed (the flat inkjet printer prints the concave-convex effect layer), the pattern must have a carrier, which can be a PVC white film or a paint layer, such as 201811628557.4
  • the carrier In order to improve the production efficiency, the carrier is not pasted by glue, nor It is applied by paint; it is extruded on the surface of the SPC core layer by co-extrusion technology.
  • the advantages of this are good controllability and high production efficiency.
  • Its disadvantage is that the background of the co-extrusion PVC material
  • the surface of the film is very smooth, and the effect of direct printing of the pattern is not good, and even problems such as ghosting may occur; the prior art usually solves the problem of poor printing of the pattern (wood grain, pattern or pattern texture).
  • the surface is coated with a layer of compatibilizer, which can alleviate the problem to a certain extent, but it still cannot be effectively solved.
  • the present invention adopts the method of sequentially swapping the "printing pattern layer” and “printing concave-convex effect layer”, and the "printing concave-convex effect layer” is used to roll engrave the concave-convex effect on the PVC background film layer.
  • Steps 2 to 5 and steps 10 to 11 are all UV paint and then cured, that is, in the prior art, the treatment needs to be performed at two stations.
  • the "inverted" method of the present invention is directly performed on the background film layer.
  • Roller engraves the concave-convex effect layer, so the operations equivalent to steps 2 to 5 are omitted, so only painting and curing are required in one station, which is equivalent to the original steps 7) ⁇ 8) and steps 10) ⁇ 11 )
  • the wear-resistant layer of the present invention is upgraded on the basis of one bottom and one side in the prior art, such as five bottoms and two sides, so as to achieve a significant protection effect.
  • the 3D visual effect of the present invention is slightly different from the prior art.
  • the principle of the 3D visual effect of the present invention is like watching small insects in amber.
  • the surface of the product is flat and smooth, but it can be intuitively felt.
  • This 3D stereoscopic effect is more direct, but because Its internal pattern layer is flat, but its overall 3D visual effect is slightly uncoordinated.
  • the flatbed inkjet printer has very strict requirements for printing the concave-convex effect layer.
  • the impact produces the concave-convex effect, it needs to be strictly controlled against the original pattern and cannot produce 1mm.
  • the engraving is carried out first, and then the color deposition (printing) is carried out.
  • the effects of depth, light and darkness are first produced, even if the same color is used, the stereoscopic visual effect can be displayed.
  • the principle is like the following snow. Different places in the same area have different ground surfaces. After the ground snows indiscriminately, due to angles and light, the snow in some places looks bright, and the snow in some places looks biased in color. Dark, some even gray.
  • the present invention is also the same. After first engraving, when printing based on this principle, there is no need to perform high-precision alignment of the flowers (printing different colors on different parts), just print without distinction.
  • the unique 3D visual effect of the present invention can be realized. Of course, using multiple colors to accurately print different colors on different parts can reflect the better 3D visual effect of the present invention.
  • the color of the background film layer is white or light color with covering properties.
  • the material of the background film layer is PVC.
  • Another object of the present invention is to provide a method for preparing the above-mentioned SPC-based 3D printing plate.
  • a preparation method of SPC-based 3D printing plate includes the following steps:
  • UV primer and UV topcoat sequentially on the intermediate product, and light-curing separately to form a UV protective layer.
  • the raw material of the SPC stone plastic substrate and the PVC raw material as the background film layer have highly similar physical and chemical properties, they have good composite properties after co-extrusion and no adhesive is required. Direct co-extrusion has a strong connection force.
  • the UV primer in step e is applied 3 to 6 times, and the UV top coat is applied 1 to 3 times.
  • the UV protection layer described in step e is formed by using a UV curable coating containing silica and/or alumina, and the amount of silica and/or alumina added is controlled within the quality of the UV curable coating Of 1 ⁇ 10wt%.
  • the addition of silica and/or alumina can significantly improve the hardness, wear resistance and burning resistance of the UV protective layer.
  • step b is changed to: the PVC film constituting the background film layer is unrolled and the core layer of SPC stone plastic material obtained in step a is combined by in-line rolling to obtain the SPC base The precursor structure of the material layer.
  • step b is changed to: the PVC film constituting the background film layer is unrolled and the core layer of SPC stone plastic material obtained in step a is combined by in-line rolling to obtain the SPC base Wood layer
  • Change step c to: input the SPC substrate layer obtained in step b into the pattern printing area of the 3D online printing device, and print a flat wood grain, pattern or pattern on the SPC substrate layer to obtain intermediate product one;
  • Step d to: input the intermediate product 1 obtained in step c into the concave-convex effect molding area of the 3D online printing device, and print the concave-convex effect layer to obtain intermediate product two;
  • Change step e to: coat the second intermediate product obtained in step d with a UV primer and a UV topcoat, and light-cure them separately to form a UV protective layer.
  • the present invention has the following beneficial effects:
  • the present invention subversively proposes the operation of first engraving and then printing.
  • a substrate layer with a background film layer is prepared by a co-extrusion method, and then the engraving is performed, followed by printing, and finally the UV protection layer is applied to make the Compared with the existing technology, the invention greatly simplifies the production process, thereby greatly improving the production efficiency;
  • the product made by the method of the present invention has the advantage of good 3D visual effects
  • the UV protection layer of the present invention is also added with some additives, such as silica, alumina, etc.; it can significantly improve the wear resistance and burn resistance of the UV protection layer.
  • the additive amount is controlled at 1 ⁇ 10wt%, and it can be uniformly dispersed in the UV light-cured coating by a high-speed dispersant when in use.
  • Figure 1 is a schematic diagram of the mold structure of the present invention
  • FIG. 2 is a schematic diagram showing the cross-sectional structure of the co-extrusion casting space in the mold of the present invention
  • Fig. 3 is a test table of the results of bonding strength and immersion peeling degree of the product of Example 1 of the present invention.
  • An SPC-based 3D printing board comprising a stone plastic (SPC) substrate layer, a color layer presented on the stone plastic (SPC) substrate layer by 3D printing, and a UV covering the color layer Protective layer;
  • the stone plastic (SPC) substrate layer includes a stone plastic (SPC) core layer and a background film layer compounded with the stone plastic (SPC) core layer;
  • the material of the background film layer is PVC;
  • the The background film is also embossed with a wood grain texture.
  • the color of the background film layer is white with covering properties.
  • a method for preparing an SPC-based 3D printing plate includes the following steps:
  • UV protection layer is made of silica and alumina
  • the total amount of silica and alumina added is controlled at 5wt% of the quality of the UV-curable coatings.
  • change step b to: change the PVC film that constitutes the background film layer, through unwinding and the core layer of SPC stone plastic material obtained in step a, through on-line roll pressing, to obtain the SPC substrate
  • the precursor structure of the layer is: the PVC film is a preformed film; and in the first embodiment, the PVC film is co-extruded with a core layer formed of a stone plastic (SPC) material through an extruder.
  • SPC stone plastic
  • change step b to: change the PVC film that constitutes the background film layer, through unwinding and the core layer of SPC stone plastic material obtained in step a, through on-line roll pressing, to obtain the SPC substrate Floor;
  • Change step c to: input the SPC substrate layer obtained in step b into the pattern printing area of the 3D online printing device, and print a flat wood grain, pattern or pattern on the SPC substrate layer to obtain intermediate product one;
  • Step d to: input the intermediate product 1 obtained in step c into the concave-convex effect molding area of the 3D online printing device, and print the concave-convex effect layer to obtain intermediate product two;
  • Change step e to: coat the second intermediate product obtained in step d with a UV primer and a UV topcoat, and light-cure them separately to form a UV protective layer.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une plaque imprimée 3D à base de SPC, qui appartient au domaine technique de la fabrication de plaque. La plaque comprend une couche de substrat de SPC, une couche de couleur d'impression 3D et une couche de protection contre les UV ; la couche de substrat comprend une couche centrale de SPC et une couche de film d'arrière-plan qui est co-extrudée et stratifiée avec la couche centrale de SPC ; une texture ayant un grain de bois, un motif ou une conception est également imprimé sur la couche de film d'arrière-plan ; ou la couche de substrat de SPC comprend une couche centrale de SPC et une couche de film d'arrière-plan qui est stratifiée avec la couche centrale de SPC par un raccord de presse en ligne, et comprend en outre une couche à effet en relief-retrait de résine, la couche à effet en relief-retrait de résine étant disposée entre la couche de couleur et la couche de protection contre les UV. Par stratification de la couche de film d'arrière-plan qui peut être constituée d'un matériau PVC sur la couche de substrat de SPC, la présente invention remplace efficacement une série d'opérations dans l'état de la technique, c'est-à-dire : « 1) le nettoyage d'un substrat de carte de PVC ; 2) l'application d'une amorce d'UV sur la surface du substrat de carte de PVC ; 3) le séchage et le durcissement de l'amorce d'UV ; 4) l'application d'une peinture supérieure blanche d'UV ; et 5) le durcissement et le séchage de la peinture blanche d'UV », simplifiant le procédé de production, améliorant ainsi l'efficacité de production.
PCT/CN2020/084275 2020-03-30 2020-04-28 Plaque imprimée 3d à base de spc et son procédé de préparation WO2021196263A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010239260.X 2020-03-30
CN202010239260.XA CN111231430A (zh) 2020-03-30 2020-03-30 一种spc基3d打印板材及其制备方法

Publications (1)

Publication Number Publication Date
WO2021196263A1 true WO2021196263A1 (fr) 2021-10-07

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WO (1) WO2021196263A1 (fr)

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* Cited by examiner, † Cited by third party
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CN112095962B (zh) * 2020-07-15 2022-06-28 泰州市华丽新材料有限公司 同步对花仿真立体纹理的辊压圆边pvc面板
CN111907163A (zh) * 2020-08-13 2020-11-10 常州市贝美家居科技有限公司 一种3d打印pvc地板及其生产方法与生产线
CN115011234A (zh) * 2022-05-07 2022-09-06 常州市贝美家居科技有限公司 一种spc地板及其制备方法
CN115157806B (zh) * 2022-06-24 2024-01-23 安徽森泰木塑科技地板有限公司 一种数码打印板材及其制备方法

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US20150251486A1 (en) * 2012-10-17 2015-09-10 Akzenta Paneele + Profile Gmbh Method for producing a decorated wall or floor panel
CN107738483A (zh) * 2017-11-01 2018-02-27 江苏良木新材料股份有限公司 Uv涂装多彩打印无机板材
CN109383014A (zh) * 2017-08-02 2019-02-26 陆钉毅 塑胶地板的立体压纹制程方法及其结构
CN109653465A (zh) * 2018-12-29 2019-04-19 诺森（常州）建筑产业有限公司 一种3d效果pvc装饰板及其3d打印的生产方法
CN110077007A (zh) * 2018-01-26 2019-08-02 浙江晶通塑胶有限公司 一种利用数码打印的塑胶地板加工工艺
CN110644727A (zh) * 2019-09-25 2020-01-03 浙江永裕竹业股份有限公司 一种在线同步对花共挤spc地板及其生产工艺

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150251486A1 (en) * 2012-10-17 2015-09-10 Akzenta Paneele + Profile Gmbh Method for producing a decorated wall or floor panel
CN109383014A (zh) * 2017-08-02 2019-02-26 陆钉毅 塑胶地板的立体压纹制程方法及其结构
CN107738483A (zh) * 2017-11-01 2018-02-27 江苏良木新材料股份有限公司 Uv涂装多彩打印无机板材
CN110077007A (zh) * 2018-01-26 2019-08-02 浙江晶通塑胶有限公司 一种利用数码打印的塑胶地板加工工艺
CN109653465A (zh) * 2018-12-29 2019-04-19 诺森（常州）建筑产业有限公司 一种3d效果pvc装饰板及其3d打印的生产方法
CN110644727A (zh) * 2019-09-25 2020-01-03 浙江永裕竹业股份有限公司 一种在线同步对花共挤spc地板及其生产工艺

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