WO2013097188A1 - 一种竹地板表面涂饰方法 - Google Patents

一种竹地板表面涂饰方法 Download PDF

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Publication number
WO2013097188A1
WO2013097188A1 PCT/CN2011/085047 CN2011085047W WO2013097188A1 WO 2013097188 A1 WO2013097188 A1 WO 2013097188A1 CN 2011085047 W CN2011085047 W CN 2011085047W WO 2013097188 A1 WO2013097188 A1 WO 2013097188A1
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Prior art keywords
roll
dry state
bamboo floor
coating
semi
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PCT/CN2011/085047
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English (en)
French (fr)
Inventor
刘雅萍
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浙江鑫拓竹业科技有限公司
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Priority to PCT/CN2011/085047 priority Critical patent/WO2013097188A1/zh
Publication of WO2013097188A1 publication Critical patent/WO2013097188A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50Multilayers
    • B05D7/56Three layers or more
    • B05D7/57Three layers or more the last layer being a clear coat
    • B05D7/576Three layers or more the last layer being a clear coat each layer being cured, at least partially, separately
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • B05D7/08Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood using synthetic lacquers or varnishes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02Processes; Apparatus
    • B27K3/15Impregnating involving polymerisation including use of polymer-containing impregnating agents
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • E04F15/04Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members

Definitions

  • the invention relates to a method for painting a bamboo floor surface.
  • bamboo flooring is a bamboo product developed in the early 1980s with bamboo as the main raw material. China is a country with abundant bamboo resources. About 90% of the world's bamboo resources with the highest performance and the highest utilization value are distributed in the southern provinces of China, which has created unique advantages for the industrial utilization of bamboo in China.
  • bamboo flooring as a new product of “Bamboo-made wood”, can make full use of China's bamboo resources and save increasingly scarce timber resources.
  • bamboo flooring is more stable and stable than other floorings. It has high density, good toughness, high strength, strong and durable, and is not easy to be deformed. Its surface is smooth and soft, wearable, beautiful in color, fresh and natural in bamboo, pleasant in bamboo, winter. Warm and cool in summer, elegant and generous. Because of this, bamboo flooring has become a high-grade floor decoration material, popular in Europe, America, Southeast Asia and the Middle East. China is a major producer of bamboo flooring and its products are sold all over the world.
  • bamboo flooring is an important and feasible way to solve the imbalance of supply and demand of wood in China.
  • the color of most bamboo floorings currently on the market is mainly natural, and the floor tones are relatively simple, which seriously affects their sales and use. Therefore, if you want to obtain high-grade, high-quality bamboo flooring, you must finish the surface of the bamboo piece or the formed floor of the formed floor, so that the surface of the bamboo floor is fresh and the fibers are arranged neatly without insects and mildew. , black spots, black lines without cracks, no missing bamboo green, bamboo yellow.
  • the existing bamboo floor surface finishing treatment mostly uses a wood grain paper layer on the bamboo body, which is easy to fall off after long-term use, and has poor practicability.
  • Chinese patent CN101357562B discloses a processing method for the surface pattern of bamboo floor, which is to transfer the pattern onto the surface of the bamboo floor by using thermal transfer paper, specifically to first print the image of the pattern on the thermal transfer paper through the printer. Then, the thermal transfer paper is placed on the surface of the bamboo floor and transferred to the surface of the bamboo floor by the transfer machine.
  • the invention changes the single deficiency of the bamboo floor color, the market competitiveness of the bamboo floor is improved, but the pattern is not It is firm and has poor adhesion. It is easy to fall off after being used for a long time.
  • a wood grain bamboo floor and a preparation method thereof according to the following steps: The upper surface of the sanding bamboo floor body, the roller coated with transparent putty, hot baking, sand Light, roller coated with wood grain background, hot baked, automatically corrected wood grain, roller coated Wood grain color, hot drying, roll coated with abrasion resistant primer, hot baked, roll coated with elastic primer, hot baked, roll coated with hard primer, hot baked, sanded, roll coated with elastic topcoat, hot baked , packaging.
  • the present inventors have found that the wood grain bamboo floor prepared according to this method has a small amount of light loss, surface cracking, and peeling off of the paint film after being used outdoors for a long period of time, particularly the part which is exposed to sunlight.
  • the invention aims to solve the phenomenon that the bamboo floor coating method is easy to lose light, surface cracking and paint film falling off, and provides a practicality, strong adhesion of the paint film, and can improve the aging resistance of the bamboo floor.
  • bamboo flooring surface finishing method to extend the service life of bamboo flooring.
  • a bamboo floor surface coating method comprising the following steps:
  • roller is coated with an adhesion promoter, which is heat-dried to completely dry;
  • the roller is coated with a wood grain road base color, heat-dried to a dry state, and then coated with a wood grain road base color, heat-dried to a full dry state, and then roller coated with a wood grain color, and dried to a dry state by ultraviolet rays. ;
  • the above step (1) sanding the surface of the bamboo floor substrate to make the thickness uniform, the surface is flat, and then cleaning the surface stain with a cleaning agent, so as to thoroughly clean all foreign objects on the surface of the substrate, thereby providing a surface suitable for the surface.
  • a good substrate surface required for finishing, if not properly treated, may result in defects such as poor adhesion of the film, shrinkage holes, etc., and the cleaning agent used may be used as a daily cleaning agent for bamboo floor cleaning.
  • the above step (2) heats the bamboo floor substrate on one side at a relatively high speed and then sprays the thinner. Unlike the conventional double-sided heating, the inventors have found that the one-side heating is more favorable for the weathering after the thinner spraying.
  • the adhesion of wood oil The weather-resistant wood oil can react with the bamboo floor substrate to penetrate into the bamboo floor. It can prevent the bamboo floor from being damaged due to the influence of water and other harsh environments.
  • the bamboo floor is more resistant to ultraviolet rays and water. , moisture and mildew
  • the present inventors fully utilize the weathering wood oil to have superior adhesion, and use the weathering wood oil and the adhesion promoter of the step (3) to enhance the adhesion of the paint film, thereby prolonging the service life of the bamboo floor.
  • the above step (4) rolls the transparent putty to fill the surface of the fiber pores, cracks, and pinholes, so that the coating finish is smoothed and the appearance of the entire coating is improved.
  • the roll coating primer is used to fill the surface of the floor, and two rolls can be used to better fill the surface of the floor, and then sanded to remove the burrs and debris on the surface to obtain a flat surface.
  • the roll coating of the wood grain road base color and the wood grain grain color in the above step (6) can greatly increase the value of the bamboo floor, and the roll coating method is carried out according to the method described in Chinese Patent No. CNCN101538927A.
  • the above step (7) is to apply a wear-resistant primer to the surface to create a good bond between the surface of the coated substrate and the subsequent coating, to form a solid foundation of the coating, and to improve the protection of the entire coating. .
  • the method of multiple roll coating-drying to semi-drying to ensure the thickness of the primer makes the wear-resistant primer more uniform and complete.
  • the invention After the roller is coated with the wear-resistant primer, the invention also sprays a thin layer of varnish to seal the primer layer, and enhance the adhesion of the primer to the topcoat, and improve the durability of the bamboo floor. Grinding and weather resistance.
  • a photocurable coating is suitably selected, and the method specifically includes the following steps:
  • the brushing of a weather-resistant wood oil in the step (2) is applied once in the direction of the grain and the direction of the grain in the bamboo flooring.
  • the temperature at which one side of the bamboo flooring substrate is heated in the step (2) is 55 ° C to 70 ° C.
  • the step (2) is specifically: heating one side of the bamboo floor substrate at a speed of 0.5 to 1.0 m/s at 55 ° C to 70 ° C, and then spraying with air. Spray a thinner, then apply a weatherable wood oil along the bamboo floor substrate in the direction of the grain and the direction of the grain. After cooling for 15-20 minutes at 15 °C ⁇ 25 °C, wipe off the unabsorbed weathering wood oil.
  • the coating layer is more fine and smooth, and the air spray method in the step (2) has a spray pressure of 0.1 MPa to 0.3 MPa and a spray thickness of 8 ⁇ to 12 ⁇ .
  • Air spraying is a widely used finishing process in paint painting construction. It uses a compressed air flow, which flows through the nozzle hole of the spray gun to form a negative pressure. The negative pressure causes the paint to be sucked from the suction pipe, and is sprayed through the nozzle to form a paint mist. The paint spray is sprayed onto the surface of the painted component to form a uniform hook. Paint film.
  • the step (7) is specifically: spraying a UV varnish by air spraying, leveling at 45 to 50 ° C for 5 to 10 minutes, and spraying the thickness to 10 to 15 ⁇ m.
  • the varnish film is too thin, it will affect the leveling effect. If it is too thick, the paint film will be white, sag, cracked, and the solvent will not be completely volatilized to affect the adhesion. therefore.
  • the varnish is sprayed to a thickness of 10 to 15 ⁇ m.
  • the step (7) is specifically: spraying a UV varnish by air spraying, leveling at 45 to 50 ° C for 5 to 10 minutes, and spraying the thickness to 10 to 15 ⁇ m.
  • the bamboo floor substrate has a water content of 8% to 12% and a thickness of 18 to 20 mm.
  • the physical and chemical properties of the glass kiln floor made by using the coating method of the present invention are compared with the standard GB/T 20240-2006.
  • the present invention has the following outstanding advantages and beneficial effects compared with the prior art:
  • the invention greatly improves the adhesion of the surface paint film by pretreating the surface of the bamboo floor substrate, applying weathering wood oil, etc., and the average surface paint film adhesion can reach 5 levels;
  • the invention also applies a varnish between the wear-resistant primer and the scratch-resistant topcoat to close the primer layer, enhance the adhesion of the primer and the topcoat, and improve the wear resistance and weather resistance of the bamboo floor. ;
  • the bamboo floor prepared by the invention exhibits a unique texture like solid wood, expands the color of the bamboo floor, has strong practicability, and uses weathering wood oil, which greatly improves the aging resistance of the bamboo floor, and makes the service life of the bamboo floor from the conventional The 20 to 30 years are extended to 30 to 50 years.
  • a bamboo floor surface finishing method comprises the following steps:
  • roller is coated with an adhesion promoter, which is heat-dried to completely dry;
  • the roller is coated with a wood grain road base color, heat-dried to a dry state, and then coated with a wood grain road base color, heat-dried to a full dry state, and then roller coated with a wood grain color, and dried to a dry state by ultraviolet rays. ;
  • the brushing of a weather-resistant wood oil is preferably applied once along the direction of the bamboo floor substrate in the direction of the grain and the direction of the grain.
  • the spray pressure of the air spray method is 0.1 MPa to 0.3 MPa, and the thickness of the spray is 8 ⁇ ⁇ 12 ⁇ . .
  • the thickness of the varnish sprayed in the above step (7) is preferably 10 to 15 ⁇ m.
  • a bamboo floor surface finishing method comprises the following steps:
  • the brushing of a weather-resistant wood oil is preferably applied once along the direction of the bamboo floor substrate in the direction of the grain and the direction of the grain.
  • the spray pressure of the air spray method is 0.1 MPa to 0.3 MPa, and the thickness of the spray is 8 ⁇ ⁇ 12 ⁇ . .
  • a UV varnish is preferably sprayed by air spraying, and the mixture is leveled at 45 to 50 ° C for 5 to 10 minutes, and the thickness of the coating is 10 to 15 ⁇ m.
  • the bamboo flooring materials in the above Examples 1 and 2 have a water content of 8% to 12% and a thickness of 18 to 20 mm.
  • the bamboo flooring prepared by the method described in Example 1 and Example 2 and the bamboo flooring obtained by the method of Chinese Patent CN101538927A (Comparative Example) are subjected to an accelerated aging test by American Standard ASTM D1037, and the test piece is subjected to temperature adjustment and humidity control.
  • the change in mechanical properties in terms of static bending, compression resistance, etc. after treatment, see Table 1, is used to illustrate the aging resistance of the bamboo flooring obtained by the method of the present invention.
  • each cycle is as follows:
  • the ambient temperature is 12 ⁇ 3 ° C;

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Floor Finish (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

一种竹地板表面涂饰方法,包括砂光清洁、涂耐候木油、辊涂附着力促进剂、烘干、辊涂透明腻子、烘干、辊涂遮盖底漆后砂光、烘干、辊涂木纹纹路基色和木纹纹路色彩、烘干、辊涂耐磨底漆、烘干、喷涂清漆、辊涂耐刮擦面漆、烘干、包装。

Description

一种竹地板表面涂饰方法
技术领域
本发明涉及一种竹地板表面涂饰方法。
背景技术
竹地板是以毛竹为主要生产原料于 20世纪 80年代初期开发出的一种竹 制品。 我国是一个竹类资源非常丰富的国家。 世界竹类资源中性能最优良、 利用 价值最高的毛竹林约有 90%分布在我国南方各省, 为我国竹材工业化利用创造了 得天独厚的优越条件。 竹地板作为 " 以竹代木" 的新产品, 既可以充分利用 我国的竹材资源, 又可以节约日益匾乏的木材资源。竹地板较其它地板而言,地 板性能牢固稳定, 密度高, 韧性好, 强度大, 结实耐用, 不易变形, 其表面 光洁柔和, 耐磨, 色泽靓丽, 竹纹清新自然, 竹香怡人, 冬暖夏凉, 典雅大 方。 正因为如此, 目前竹地板已成为一种高档的地面装饰材料, 流行于欧美、 东南亚和中东地区。 我国是竹地板的主要生产国, 产品销往世界各地。
生产和发展竹地板就是解决我国木材供需不平衡的一个重要且可行的途径。 然而, 目前市面上大多数竹地板的色彩主要是自然色, 地板色调比较单一, 严重 影响了其销售和使用。 因此, 如果要获得高等级、 高品质的竹地板必须要对构成 地板的竹片或已成型地板的坯料表面进行涂饰处理, 以使竹地板表层竹片色泽清 新、 纤维排列整齐无虫眼、 霉斑、 黑点、 黑线无裂纹、 缺边无残留竹青、 竹黄。 现有的对竹地板表面涂饰处理多采用在竹质本体上粘贴木纹纸层, 长久使用后易 发生脱落, 实用性差。
中国专利 CN101357562B公开了一种竹地板表面花纹的加工方法, 该方法是 用热转印纸将花纹转印到竹地板的表面上, 具体为先将花纹的图像通过打印机打 印到热转印纸上, 再将热转印纸放在竹地板表面, 并用转印机转印到竹地板的表 面,该发明虽然改变了竹地板花色品种单一的不足,提高了竹地板的市场竞争力, 但花纹不牢固, 附着性差, 使用久了后极易脱落。
为了解决上述问题, 本发明人在中国专利 CN101538927A中公开了一种木纹 竹地板及其制备方法, 按照下列步骤进行: 砂光竹地板本体的上表面, 辊涂上透 明腻子, 热烘, 砂光, 辊涂上木材纹路底色, 热烘, 自动校正木材纹路, 辊涂上 木材纹路色彩, 热烘, 辊涂上耐磨底漆, 热烘, 辊涂上弹性底漆, 热烘, 辊涂上 硬性底漆, 热烘, 砂光, 辊涂上弹性面漆, 热烘, 包装。 本发明人发现根据这种 方法制备的木纹竹地板经长时间室外使用后特别是受太阳光照射的那部分地板, 出现了少量失光、 表面开裂及漆膜脱落等现象。
发明内容
本发明目的在于解决了现有竹地板涂饰方法导致的竹地板易出现失光、 表 面开裂及漆膜脱落等现象, 提供一种实用性强, 漆膜附着力强, 能提高竹地板耐 老化性, 延长竹地板使用寿命的竹地板表面涂饰方法。
本发明的上述技术目的是通过以下技术方案得以实现的: 一种竹地板表面涂 饰方法, 包括以下步骤:
(1) 对竹地板基材表面进行砂光定厚处理, 然后使用清洁剂清除表面污渍, 再用水清洗干净后烘干;
(2) 以 0.5~1.0m/s的速度对竹地板基材的一面进行加热,然后采用空气喷涂法 喷涂一道稀释剂, 再沿竹地板基材纹理方向刷涂上一道耐候木油, 在 15°C〜25°C 下冷却 15~20min后擦去未吸收的耐候木油;
(3) 辊涂一道附着力促进剂, 热烘至完全干燥;
(4) 辊涂一道透明腻子, 热烘至半干状态;
(5) 辊涂一道遮盖底漆, 热至半干状态后, 再辊涂一道遮盖底漆, 砂光表面;
(6) 辊涂一道木纹纹路基色, 热烘至全干状态, 再辊涂一道木纹纹路基色, 热烘至全干状态, 然后辊涂一道木纹纹路色彩, 经紫外线烘至全干状态;
(7) 辊涂一道耐磨底漆, 热烘至半干状态, 再辊涂、 然后烘至半干状态重复 两次后砂光表面, 再辊涂一道耐磨底漆, 热烘至半干状态, 最后再辊涂一道耐磨 底漆后, 热烘至全干状态后砂光表面;
(8) 喷涂一道清漆, 流平 5~10min;
(9) 辊涂一道耐刮擦面漆, 热烘至半干状态, 再辊涂一道耐刮擦面漆, 热烘 至全干状态。
上述步骤 (1 ) 对竹地板基材表面进行砂光处理, 使其厚度一致, 表面平整, 再用清洁剂清洗表面污渍, 以达到彻底地清洁基材表面所有异物的目的, 从而提 供适合于表面涂饰要求的良好基材表面, 如不经妥善的表面处理, 会导致漆膜附 着力不良, 缩孔等缺陷, 其中所用清洁剂可使用日常用于竹地板清洁的清洁剂。 上述步骤(2) 以较快的速度对竹地板基材单面进行加热后再喷涂稀释剂, 不 同于传统的双面加热, 本发明人发现采用单面加热更有利于稀释剂喷涂后的耐候 木油的附着。 耐候木油能与竹地板基材发生毛细作用, 渗透进竹地板内部, 可 防止竹地板因水及其他恶劣环境的影响而到导致的使用寿命短等问题, 是竹 地板更耐紫外线、 更防水、 防潮及防霉。
由于竹材本身比较光滑, 硬度也较大, 所以现有的竹材表面涂饰后其漆膜的 附着力较低, 所以很多质量不好的竹地板在使用后会发生漆膜脱落的现象。 本发 明人正是基于此,充分利用耐候木油具有超强的附着力,使用耐候木油及步骤(3 ) 的附着力促进剂来增强漆膜的附着力, 从而延长竹地板的使用寿命。
上述步骤(4)辊涂透明腻子, 可填补表面的纤维孔、 裂缝、 针眼, 使涂层修 饰均勾平整, 改善整个涂层的外观。
上述步骤(5 )辊涂遮盖底漆用于填充地板表面, 辊涂两道可更好地填充地板 表面, 再砂光以清除表面的毛剌及杂物, 获得平整表面。
上述步骤(6)中木纹纹路基色及木纹纹路色彩的辊涂可大大提高竹地板的价 值, 其辊涂方法根据中国专利 CNCN101538927A中所述方法进行。
上述步骤(7)辊涂耐磨底漆的目的是在被涂的基材表面与随后的涂层之间创 造良好的结合力, 形成涂层的坚实的基础, 并且提高整个涂层的保护性能。 采用 多次辊涂 -烘至半干的方法, 以保证底漆的厚度, 可使耐磨底漆更加均勾和完整。
在辊涂耐磨底漆后, 辊涂耐刮擦面漆前, 本发明还喷涂一层薄的清漆, 将底 漆层封闭, 同时增强底漆与面漆的附着力, 提高竹地板的耐磨及耐候性能。
由于光固化 (UV) 涂料固化速度快, 生产效率高, 与传统溶剂型涂料相比, 能量利用率高, 无溶剂排放, 安全无污染, 特别是其涂膜质量高, 涂层性能优异, 其不同于其他类型的涂料品种,在于其固化成膜必须经受紫外光线的照射。因此, 作为本发明上述方案的优选, 适宜选择光固化涂料, 其方法具体包括以下步骤:
(1) 对竹地板基材表面进行砂光定厚处理, 然后使用清洁剂清除表面污渍, 再用水清洗干净后烘干;
(2) 以 0.5~1.0m/s的速度对竹地板基材的一面进行加热,然后采用空气喷涂法 喷涂一道稀释剂, 再沿竹地板基材纹理方向刷涂上一道耐候木油, 在 15°C〜25°C 下冷却 15~20min后擦去未吸收的耐候木油;
(3) 辊涂一道 UV附着力促进剂, 热烘至完全干燥; (4) 辊涂一道 UV透明腻子, 经紫外线烘至半干状态;
(5) 辊涂一道 UV遮盖底漆, 用紫外线烘至半干状态后, 再辊涂一道 UV遮 盖底漆, 砂光表面;
(6) 辊涂一道 UV木纹纹路基色, 经紫外线烘至全干状态, 再辊涂一道 UV 木纹纹路基色, 经紫外线烘至全干状态, 然后辊涂一道 UV木纹纹路色彩, 经紫 外线烘至全干状态;
(7) 辊涂一道 UV耐磨底漆, 经紫外线烘至半干状态, 再辊涂、 然后烘至半 干状态重复两次后砂光表面, 再辊涂一道 UV耐磨底漆, 经紫外线烘至半干状态, 最后再辊涂一道 UV耐磨底漆后, 经紫外线烘至全干状态后砂光表面;
(8) 喷涂一道 UV清漆, 流平 5~10min;
(9) 辊涂一道 UV耐刮擦面漆, 经紫外线烘至半干状态, 再辊涂一道 UV耐 刮擦面漆, 经紫外线烘至全干状态。
作为本发明上述方案的进一步优选, 所述步骤(2)中一道耐候木油的刷涂为 沿竹地板基材顺纹方向和横纹方向各刷涂一次。
作为本发明上述方案的进一步优选, 所述步骤(2)中对竹地板基材的一面进 行加热的温度为 55°C~70 °C。
作为本发明上述方案的进一步优选, 所述步骤 (2) 具体为: 在 55°C~70 °C 下以 0.5~1.0m/s的速度对竹地板基材的一面进行加热, 然后采用空气喷涂法喷涂 一道稀释剂, 再沿竹地板基材顺纹方向和横纹方向各刷涂一次耐候木油, 在 15°C~25°C下冷却 15~20min后擦去未吸收的耐候木油。
作为本发明上述方案的进一步优选, 为了产生更加均勾的漆, 涂层更加细腻 光滑,所述步骤(2)中的空气喷涂法喷涂压力为 0.1MPa~0.3MPa,喷涂厚度为 8μηι 〜12μηι。 空气喷涂是目前油漆涂装施工中采用得比较广泛的一种涂饰工艺。 它是 利用压缩空气的气流, 流过喷枪喷嘴孔形成负压, 负压使漆料从吸管吸入, 经喷 嘴喷出, 形成漆雾, 漆雾喷身到被涂饰零部件表面上形成均勾的漆膜。
作为本发明上述技术方案二的进一步优选, 所述步骤(7)具体为: 使用空气 喷涂法喷涂一道 UV清漆, 在 45~50°C下流平 5~10min, 喷涂厚度为 10~15μηι。
由于清漆膜太薄会影响流平效果, 太厚则会出现漆膜发白、 流挂现象、 漆膜 开裂以及溶剂不能完全挥发从而影响附着力。 因此。 作为上述技术方案的进一步 优选, 所述步骤 (7) 中清漆喷涂厚度为 10~15μηι。 进一步地, 所述步骤 (7 ) 具体为: 使用空气喷涂法喷涂一道 UV清漆, 在 45~50°C下流平 5~10min, 喷涂厚度为 10~15μηι。
为了使本发明漆膜达到更优的附着, 作为本发明的优选, 所述竹地板基材含 水率为 8%~12%, 厚度为 18~20mm。
使用本发明所述涂饰方法所制得的玻璃窑炉竹地板的理化性能指标与标准 GB/T 20240-2006比较见下表,
Figure imgf000006_0001
综上所述, 本发明与现有技术相比, 具有以下突出优点及有益效果:
( 1 )本发明通过对竹地板基材表面预处理, 施加耐候木油等等, 大大提高了 其表面漆膜附着力, 其平均表面漆膜附着力可达 5级;
(2) 本发明在耐磨底漆与耐刮擦面漆之间还辊涂一道清漆, 将底漆层封闭, 同时增强底漆与面漆的附着力, 提高竹地板的耐磨及耐候性能;
( 3 )本发明制备的竹地板呈现似实木的独特纹理, 扩大了竹地板的花色, 实 用性强, 使用耐候木油, 大大提高了竹地板的耐老化性, 使竹地板的使用寿命从 常规的 20~30年延长到 30~50年。
具体实施方式
下面结合实施例对本发明作进一步详细说明。 本具体实施例仅仅是对本发明 的解释, 其并不是对发明的限制, 本领域技术人员在阅读完本说明书后可以根据 需要对本实施例做出任何修改, 但只要在本发明的权利要求范围内都受到专利法 的保护。
实施例 1
一种竹地板表面涂饰方法, 具体包括以下步骤:
(1) 对竹地板基材表面进行砂光定厚处理, 然后使用清洁剂清除表面污渍, 再用水清洗干净后烘干;
(2) 在 55°C~65°C下以 0.5~1.0m/s的速度对竹地板基材的一面进行加热, 然后 采用空气喷涂法喷涂一道稀释剂乙酸乙酯, 再沿竹地板基材纹理方向刷涂上一道 耐候木油, 在 15°C~25°C下冷却 15~20min后擦去未吸收的耐候木油;
(3) 辊涂一道附着力促进剂, 热烘至完全干燥;
(4) 辊涂一道透明腻子, 热烘至半干状态;
(5) 辊涂一道遮盖底漆, 热至半干状态后, 再辊涂一道遮盖底漆, 砂光表面;
(6) 辊涂一道木纹纹路基色, 热烘至全干状态, 再辊涂一道木纹纹路基色, 热烘至全干状态, 然后辊涂一道木纹纹路色彩, 经紫外线烘至全干状态;
(7) 辊涂一道耐磨底漆, 热烘至半干状态, 再辊涂、 然后烘至半干状态重复 两次后砂光表面, 再辊涂一道耐磨底漆, 热烘至半干状态, 最后再辊涂一道耐磨 底漆后, 热烘至全干状态后砂光表面;
(8) 喷涂一道清漆, 流平 5~10min;
(9) 辊涂一道耐刮擦面漆, 热烘至半干状态, 再辊涂一道耐刮擦面漆, 热烘 至全干状态。
上述步骤(2)中一道耐候木油的刷涂优选为沿竹地板基材顺纹方向和横纹方 向各刷涂一次,空气喷涂法喷涂压力为 0.1MPa~0.3MPa,喷涂厚度为 8μηι ~12μηι。
上述步骤 (7) 中清漆喷涂厚度优选 10~15μηι。
实施例 2
一种竹地板表面涂饰方法, 具体包括以下步骤:
(1) 对竹地板基材表面进行砂光定厚处理, 然后使用清洁剂清除表面污渍, 再用水清洗干净后烘干;
(2) 在 60~70°C下以 0.5~1.0m/s的速度对竹地板基材的一面进行加热, 然后采 用空气喷涂法喷涂一道稀释剂乙酸丁酯, 再沿竹地板基材纹理方向刷涂上一道耐 候木油, 在 15°C~25°C下冷却 15~20min后擦去未吸收的耐候木油;
(3) 辊涂一道 UV附着力促进剂, 热烘至完全干燥; (4) 辊涂一道 UV透明腻子, 经紫外线烘至半干状态;
(5) 辊涂一道 UV遮盖底漆, 用紫外线烘至半干状态后, 再辊涂一道 UV遮 盖底漆, 砂光表面;
(6) 辊涂一道 UV木纹纹路基色, 经紫外线烘至全干状态, 再辊涂一道 UV 木纹纹路基色, 经紫外线烘至全干状态, 然后辊涂一道 UV木纹纹路色彩, 经紫 外线烘至全干状态;
(7) 辊涂一道 UV耐磨底漆, 经紫外线烘至半干状态, 再辊涂、 然后烘至半 干状态重复两次后砂光表面, 再辊涂一道 UV耐磨底漆, 经紫外线烘至半干状态, 最后再辊涂一道 UV耐磨底漆后, 经紫外线烘至全干状态后砂光表面;
(8) 喷涂一道 UV清漆, 流平 5~10min;
(9) 辊涂一道 UV耐刮擦面漆, 经紫外线烘至半干状态, 再辊涂一道 UV耐 刮擦面漆, 经紫外线烘至全干状态。
上述步骤(2)中一道耐候木油的刷涂优选为沿竹地板基材顺纹方向和横纹方 向各刷涂一次,空气喷涂法喷涂压力为 0.1MPa~0.3MPa,喷涂厚度为 8μηι ~12μηι。
上述步骤 (7) 中优选使用空气喷涂法喷涂一道 UV清漆, 在 45~50°C下流平 5~10min, 喷涂厚度为 10~15μηι。
上述实施例 1和实施 2中的竹地板基材含水率为 8%~12%,厚度为 18~20mm。 经实施例 1 和实施例 2 所述方法制得的竹地板与使用中国专利 CN101538927A (对比例) 的方法制得的竹地板通过美国标准 ASTM D1037加 速老化试验, 测定试件经过调温、 调湿处理后的静态弯曲、 抗压等方面的力学性 能的变化情况, 见表 1, 用以说明本发明方法制得的竹地板的耐老化性。
根据标准, 试样需进行 6 个完全的老化周期, 每一周期如下:
( 1 ) 温水浸泡 1小时, 水温 49 ± 2 °C;
(2) 蒸气处理 3小时, 温度 93 ±3°C ;
(3 ) 冷冻环境下放置 20小时, 环境温度一 12±3°C ;
(4) 干燥 3小时, 温度 99±2°C ;
(5 ) 蒸汽处理 3 小时, 温度 93 ±3°C ;
(6) 干燥 18小时, 温度 99±2°C ;
每一周期需时间 48小时, 六个周期共需 288小时; 各周期之间需连续进行, 六个周期完成后, 材料必须进行调质处理 (调质环境: 温度 T=20±3°C, 相对湿 度 H=65 ± l%; 调质时间至少 48 小时), 再按所要求的内容对各项性能进行检 测, 每个周期的数据均为平均值。
表 1 耐老化性比较
由表 1可知, 五种材料的试件进行了人工老化试验, 经过六个连续不断干湿 急剧变化的周期环境, 对比例表面漆膜磨耗值不合格, 实施例静曲强度和抗压强 度分别下降了 23.7%和 14.1%, 而对比例的静曲强度下降了 31.1%和 18.8%, 由此 可见, 本发明制备的竹地板较对比例具有更好地耐老化性。

Claims

O 2013/097188 权禾 'J要求书 PCT/CN2011/085047
1、 一种竹地板表面涂饰方法, 其特征在于, 包括以下步骤:
(1) 对竹地板基材表面进行砂光定厚处理, 然后使用清洁剂清除表面污渍, 再用水清洗干净后烘干;
(2) 以 0.5~1.0m/s的速度对竹地板基材的一面进行加热,然后采用空气喷涂法 喷涂一道稀释剂, 再沿竹地板基材纹理方向刷涂上一道耐候木油, 在 15°C〜25°C 下冷却 15~20min后擦去未吸收的耐候木油;
(3) 辊涂一道附着力促进剂, 热烘至完全干燥;
(4) 辊涂一道透明腻子, 热烘至半干状态;
(5) 辊涂一道遮盖底漆, 热至半干状态后, 再辊涂一道遮盖底漆, 砂光表面;
(6) 辊涂一道木纹纹路基色, 热烘至全干状态, 再辊涂一道木纹纹路基色, 热烘至全干状态, 然后辊涂一道木纹纹路色彩, 经紫外线烘至全干状态;
(7) 辊涂一道耐磨底漆, 热烘至半干状态, 再辊涂、 然后烘至半干状态重复 两次后砂光表面, 再辊涂一道耐磨底漆, 热烘至半干状态, 最后再辊涂一道耐磨 底漆后, 热烘至全干状态后砂光表面;
(8) 喷涂一道清漆, 流平 5~10min;
(9) 辊涂一道耐刮擦面漆, 热烘至半干状态, 再辊涂一道耐刮擦面漆, 热烘 至全干状态。
2、 根据权利要求 1所述一种竹地板表面涂饰方法, 其特征在于, 包括以下步骤:
(1) 对竹地板基材表面进行砂光定厚处理, 然后使用清洁剂清除表面污渍, 再用水清洗干净后烘干;
(2) 以 0.5~1.0m/s的速度对竹地板基材的一面进行加热,然后采用空气喷涂法 喷涂一道稀释剂, 再沿竹地板基材纹理方向刷涂上一道耐候木油, 在 15°C〜25°C 下冷却 15~20min后擦去未吸收的耐候木油;
(3) 辊涂一道 UV附着力促进剂, 热烘至完全干燥;
(4) 辊涂一道 UV透明腻子, 经紫外线烘至半干状态;
(5) 辊涂一道 UV遮盖底漆, 用紫外线烘至半干状态后, 再辊涂一道 UV遮 盖底漆, 砂光表面;
(6) 辊涂一道 UV木纹纹路基色, 经紫外线烘至全干状态, 再辊涂一道 UV 木纹纹路基色, 经紫外线烘至全干状态, 然后辊涂一道 UV木纹纹路色彩, 经紫 外线烘至全干状态; (7) 辊涂一道 UV耐磨底漆, 经紫外线烘至半干状态, 再辊涂、 然后烘至半 干状态重复两次后砂光表面, 再辊涂一道 UV耐磨底漆, 经紫外线烘至半干状态, 最后再辊涂一道 UV耐磨底漆后, 经紫外线烘至全干状态后砂光表面;
(8) 喷涂一道 UV清漆, 流平 5~10min;
(9) 辊涂一道 UV耐刮擦面漆, 经紫外线烘至半干状态, 再辊涂一道 UV耐 刮擦面漆, 经紫外线烘至全干状态。
3、根据权利要求 1或 2所述一种竹地板表面涂饰方法,其特征在于,所述步骤(2) 中一道耐候木油的刷涂为沿竹地板基材顺纹方向和横纹方向各刷涂一次。
4、根据权利要求 1或 2所述一种竹地板表面涂饰方法,其特征在于,所述步骤(2) 中稀释剂为乙酸乙酯、 乙酸丁酯中的任意一种。
5、根据权利要求 1或 2所述一种竹地板表面涂饰方法,其特征在于,所述步骤(2) 中对竹地板基材的一面进行加热的温度为 55°C~70 °C。
6、根据权利要求 1或 2所述一种竹地板表面涂饰方法,其特征在于,所述步骤(2) 具体为: 在 55°C~70 °C下以 0.5~1.0m/s的速度对竹地板基材的一面进行加热, 然 后采用空气喷涂法喷涂一道稀释剂, 再沿竹地板基材顺纹方向和横纹方向各刷涂 一次耐候木油, 在 15°C~25°C下冷却 15~20min后擦去未吸收的耐候木油。
7、根据权利要求 1或 2所述一种竹地板表面涂饰方法,其特征在于,所述步骤(2) 中的空气喷涂法喷涂压力为 0.1MPa~0.3MPa, 喷涂厚度为 8μηι ~12μηι。
8、根据权利要求 1或 2所述一种竹地板表面涂饰方法,其特征在于,所述步骤(7) 中清漆喷涂厚度为 10~15μηι。
9、 根据权利要求 2所述一种竹地板表面涂饰方法, 其特征在于, 所述步骤 (7) 具体为: 使用空气喷涂法喷涂一道 UV清漆, 在 45~50°C下流平 5~10min, 喷涂厚 度为 10~15μηι。
10、 根据权利要求 1或 2所述一种竹地板表面涂饰方法, 其特征在于, 所述竹地 板基材含水率为 8%~12%, 厚度为 18~20mm。
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CN109909137A (zh) * 2017-12-13 2019-06-21 惠州市长润发涂料有限公司 一种平板木门uv涂装施工工艺

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