CN112497375A - 一种数字化木纹3d数码喷印装饰板及其生产工艺 - Google Patents
一种数字化木纹3d数码喷印装饰板及其生产工艺 Download PDFInfo
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Abstract
本发明提供一种数字化木纹3D数码喷印装饰板及其生产工艺,通过使用光吸收剂提升了数字化木纹3D数码喷印装饰板的耐光色牢度等级达到5级,使用稳定剂解决了光吸收剂添加入后存在的着色较差的问题,使其色差值ΔE≤1.0,提升板材使用感受,增强竞争优势;该工艺包括如下步骤:无醛基板的制备;涂覆底漆层;喷印3D数码木纹层;涂覆面漆层,面漆所使用的涂料中添加光吸收剂2‑羟基‑4‑甲氧基二苯甲酮和稳定剂4‑羟基‑2,2,6,6‑四甲基哌啶,其中,光吸收剂添加量为0.5%,稳定剂添加量为0.25%。
Description
技术领域
本发明属于板材生产制造领域,尤其涉及一种数字化木纹3D数码喷印装饰板及其生产工艺。
背景技术
细木工生态板,又叫三聚氰胺浸渍胶膜纸饰面细木工板,是以浸渍氨基树脂的胶膜纸铺装在细木工板基材上,经热压而成的装饰板材。对于目前工艺生产的三聚氰胺浸渍胶膜纸饰面细木工板,存在着花纹单调,色泽单一的情况,故本发明通过3D数码喷印技术与板材生产相结合的方法,开发出一种数字化木纹3D数码喷印装饰板。例专利申请号201820586425.9的《一种3D打印实木地板》、和申请号201910920475.5的《表面拉丝效果的3D打印板材》,这两种产品通过3D打印和板材制备相结合的方式,制备新型建材。但是由于油墨的光不稳定性,易造成掉色、变黄等现象。
发明内容
本发明提供一种数字化木纹3D数码喷印装饰板及其生产工艺,过使用光吸收剂提升了数字化木纹3D数码喷印装饰板的耐光色牢度等级达到5级,使用稳定剂解决了光吸收剂添加入后存在的着色较差的问题,使其色差值ΔE≤1.0,提升板材的使用感受,增强竞争优势。
在本发明一些实施方式中,本发明提供一种数字化木纹3D数码喷印装饰板的生产工艺,该工艺包括如下步骤:
步骤1)无醛基板的制备:
步骤I:使用大豆蛋白胶黏剂拼接芯板板条,规格达到2500mm×1260mm,含水率≤10%,厚度达到1.2-1.25cm,布胶量300g/规格板;
步骤II:将步骤I中的芯板进行大豆蛋白胶黏剂双面布胶,布胶量0.24-0.27kg/m2,双面配置2.6-3.2cm的中板层;
步骤III:将步骤II组坯板进行冷压,单位压力0.5-0.7MPa,时间50-80min,之后进行热压,单位压力0.5-0.7MPa,时间15-20min,温度120-127℃;步骤IV):将步骤III中的组坯板进行大豆蛋白交联剂双面布胶,布胶量为0.2-0.23kg/m2,并配置0.5mm-1.0mm的单板层;
步骤V):将步骤IV组坯板材冷压,单位压力0.5-0.7MPa,时间20-30min,热压单位压力0.5-0.7MPa,时间5-7min,温度115-125℃;
步骤2)涂覆底漆层:
步骤I:涂布水性附着底漆,涂布量0.7-0.9g/m2,使用热风干燥;
步骤II:涂布油性附着底漆,涂布量为19-20g/m2,使用UV干燥,能量为84mj/cm2;
步骤III:涂布腻子,涂布量为31-32g/m2,使用UV干燥,能量为69mj/cm2,固化后砂光;
步骤IV:涂布腻子,涂布量为18-19g/m2,再涂布砂光底漆,涂布量为34-38g/m2,使用UV干燥,能量为65mj/cm2,固化后砂光;
步骤V:涂布三道白色遮盖底漆,第一道涂布量11-13g/m2,UV干燥,能量为35mj/cm2;第二道涂布量17-19g/m2,UV干燥,能量为110mj/cm2;第三道涂布量17-19g/m2,UV干燥,能量为68mj/cm2,固化后进行砂光处理;
步骤VI:涂布白色底漆,涂布量为9-11g/m2,UV干燥,能量为46mj/cm2;
步骤VII:涂布两道加硬底漆,第一道涂布量为8-10g/m2,UV干燥,能量为73mj/cm2;第二道涂布量为8-10g/m2,UV干燥,能量为148mj/cm2;
步骤3)喷印3D数码木纹层:
步骤I:油墨附着底漆,涂布量为6-9g/m2,UV干燥,能量为54mj/cm2;
步骤II:油墨喷涂,涂布量为6-9g/m2,UV干燥,能量为79mj/cm2;
步骤4)涂覆面漆层
步骤I:附着底漆,涂布量为3-5g/m2,UV干燥,能量为73mj/cm2;
步骤II:加硬底漆,涂布量为12-15g/m2,UV干燥,能量为34mj/cm2;
步骤III:砂光底漆,涂布量为12-15g/m2,UV干燥,能量为53mj/cm2。固化后砂光;
步骤IV:加硬底漆,涂布量为13-15g/m2,UV干燥,能量为59mj/cm2;
步骤V:砂光底漆,涂布量为5-8g/m2,UV干燥,能量为66mj/cm2;固化后进行砂光;
步骤VI:修色底漆,涂布量为10-12g/m2,UV干燥,能量为102mj/cm2;
步骤VII:面漆分为两道,第一道涂布量为0.4-0.6g/m2,UV干燥,能量为134mj/cm2;第二道涂布量为0.6-1.0g/m2,UV干燥,能量为370mj/cm2;
面漆所使用的涂料中添加光吸收剂2-羟基-4-甲氧基二苯甲酮和稳定剂4-羟基-2,2,6,6-四甲基哌啶,其中,光吸收剂添加量为0.5%,稳定剂添加量为0.25%。
在一些具体实施方式中,芯板所用的木材有杉木、杨木、桐木、马六甲、松木,厚度为1.2cm-1.25cm。
在一些具体实施方式中,中板层所用的木材有杨木、桉木,中板层厚度为2.6-3.2mm。
在一些具体实施方式中,使用大豆蛋白胶黏剂为大豆蛋白粉和水性环氧树脂的混合物,混合比例为1:2。
在一些具体实施方式中,单板层所用材料为漂白杨木单板,厚度为0.5mm-1.0mm。
本发明依据上述生产工艺得到一种数字化木纹3D数码喷印装饰板,结构从上往下包括以下几层:面漆层、3D数码木纹层、底漆层、基板层、底漆层、3D数码木纹层、面漆层;其中,所述的基板层包括正面单板层、正面中板层、芯板层、背面中板层、背面单板层。
本发明通过使用光吸收剂提升了数字化木纹3D数码喷印装饰板的耐光色牢度等级达到5级,使用稳定剂解决了光吸收剂添加入后存在的着色较差的问题,使其色差值ΔE≤1.0,提升板材使用感受,增强竞争优势。
具体实施方式
实施例1
1.无醛基板的制备:
①使用大豆蛋白交联剂拼接芯板板条,规格达到2500mm×1260mm,含水率≤10%,厚度达到1.2cm,布胶量300g/规格板;
②将步骤①中的芯板进行大豆蛋白交联剂双面布胶,布胶量0.25kg/m2,双面配置3.2cm的中板层;
③将步骤②组坯板进行冷压,单位压力0.6MPa,时间60min,之后进行热压,单位压力0.6MPa,时间18min,温度125℃。
④将步骤③中的组坯板进行大豆蛋白交联剂双面布胶,0.22kg/m2,并配置0.7mm的单板层;
⑤将步骤④组坯板材冷压,单位压力0.55MPa,时间25min,热压单位压力0.55MPa,时间6min,温度120℃。
2.底漆层的加工工艺如下:
①涂布水性附着底漆,涂布量0.8g/m2,使用热风干燥。
②涂布油性附着底漆,涂布量为19g/m2,使用UV干燥,能量为84mj/cm2。
③涂布腻子,涂布量为31.5g/m2,使用UV干燥,能量为69mj/cm2,固化后砂光。
④涂布腻子,涂布量为18.5g/m2,再涂布砂光底漆,涂布量为36g/m2,使用UV干燥,能量为65mj/cm2,固化后砂光。
⑤涂布三道白色遮盖底漆,第一道涂布量12g/m2,UV干燥,能量为35mj/cm2;第二道涂布量18g/m2,UV干燥,能量为110mj/cm2;第三道涂布量18g/m2,UV干燥,能量为68mj/cm2,固化后进行砂光处理。
⑥涂布白色底漆,涂布量为10g/m2,UV干燥,能量为46mj/cm2。
⑦涂布两道加硬底漆,第一道涂布量为9g/m2,UV干燥,能量为73mj/cm2;第二道涂布量为9g/m2,UV干燥,能量为148mj/cm2。
3.3D数码木纹层的加工工艺如下:
①油墨附着底漆,涂布量为8g/m2,UV干燥,能量为54mj/cm2。
②油墨喷涂,涂布量为8g/m2,UV干燥,能量为79mj/cm2。
4.面漆层的加工工艺如下:
①附着底漆,涂布量为4g/m2,UV干燥,能量为73mj/cm2。
②加硬底漆,涂布量为13g/m2,UV干燥,能量为34mj/cm2。
③砂光底漆,涂布量为14g/m2,UV干燥,能量为53mj/cm2。固化后砂光。
④加硬底漆,涂布量为14g/m2,UV干燥,能量为59mj/cm2。
⑤砂光底漆,涂布量为7g/m2,UV干燥,能量为66mj/cm2。固化后进行砂光。
⑥修色底漆,涂布量为11g/m2,UV干燥,能量为102mj/cm2。
⑦面漆分为两道,第一道涂布量为0.5g/m2,UV干燥,能量为134mj/cm2;第二道涂布量为0.8g/m2,UV干燥,能量为370mj/cm2。
本实施例采用的面漆为UV哑光面漆,面漆使用的涂料中添加光吸收剂2-羟基-4-甲氧基二苯甲酮,用量为0.5%。
依据所述的生产工艺得到的数字化木纹3D数码喷印装饰板,结构从上往下包括以下几层:面漆层、3D数码木纹层、底漆层、基板层、底漆层、3D数码木纹层、面漆层;其中,所述的基板层包括正面单板层、正面中板层、芯板层、背面中板层、背面单板层。
将实施例1样板进行检测,耐光色牢度达到5级。据观察产品表面,发现着色效果较差,使用柯尼卡CR-410色彩色差计进行测试,跟未添加光吸收剂样品进行对比色差值ΔE为2.64,存在一定的色差问题。故在实施例2中,添加稳定剂4-羟基-2,2,6,6-四甲基哌啶。
实施例2
实施例2与实施例1不同之处在于,面漆层使用的涂料中添加光吸收剂2-羟基-4-甲氧基二苯甲酮,用量为0.5%;添加稳定剂4-羟基-2,2,6,6-四甲基哌啶,用量为0.1%。
实施例3
实施例3与实施例1、2不同之处在于,面漆层使用的涂料中不添加光吸收剂和稳定剂。
上述产品检测数据如下表1:
表1实施例检测数据统计表
检测项目 | 耐光色牢度等级 | 色差值ΔE |
实施例1 | 5 | 2.64 |
实施例2 | 5 | 1.77 |
实施例3 | 3.5 | / |
注:耐光色牢度检测方法按照标准GB/T 17657-2013《人造板及饰面人造板理化性能试验方法》、色差值ΔE检测方法采用柯尼卡CR-410色彩色差计进行测试,跟为未添加光吸收剂和稳定剂实施例3样品进行对比。
从表1检测结果显示实施例3在未添加光吸收剂与光稳定剂的情况下,板材的耐光色牢度为3.5级。在实施例1中,面漆层添加了0.5%的光吸收剂,耐光色牢度提升至5级。说明通过在面漆涂料中添加光吸收剂,可以有效提高产品的耐光色牢度等级。通过观察产品表面,产品存在着色效果差的情况,跟实施例3样品对比测试,色差值ΔE为2.64,故在实施例2中,面漆层添加了0.5%的光吸收剂2-羟基-4-甲氧基二苯甲酮和0.1%的稳定剂4-羟基-2,2,6,6-四甲基哌啶,经过检测耐光色牢度等级为5级。观察产品表面,着色效果差的问题得到改善,经测试产品色差值ΔE变小为1.77。
在实施例3的基础上制备试样:
1#光吸收剂2-羟基-4-甲氧基二苯甲酮用量为0.1%。
2#光吸收剂2-羟基-4-甲氧基二苯甲酮用量为0.3%。
3#光吸收剂2-羟基-4-甲氧基二苯甲酮用量为0.5%。
4#光吸收剂2-羟基-4-甲氧基二苯甲酮用量为0.7%。
5#光吸收剂2-羟基-4-甲氧基二苯甲酮用量为1.0%。
表2检测数据统计表
检测项目 | 耐光色牢度等级 |
1# | 4 |
2# | 4.5 |
3# | 5 |
4# | 5 |
5# | 5 |
从表2检测结果,且考虑生产成本,选择光吸收剂2-羟基-4-甲氧基二苯甲酮用量0.5%最佳。
在光吸收剂2-羟基-4-甲氧基二苯甲酮用量0.5%的基础上制备试样:
1#光吸收剂用量为0.5%,稳定剂4-羟基-2,2,6,6-四甲基哌啶用量为0.15%。
2#光吸收剂用量为0.5%,稳定剂4-羟基-2,2,6,6-四甲基哌啶用量为0.2%。
3#光吸收剂用量为0.5%,稳定剂4-羟基-2,2,6,6-四甲基哌啶用量为0.25%。
4#光吸收剂用量为0.5%,稳定剂4-羟基-2,2,6,6-四甲基哌啶用量为0.3%。
表3检测数据统计表
检测项目 | 色差值ΔE |
1# | 1.41 |
2# | 1.14 |
3# | 0.93 |
4# | 0.86 |
从表3检测结果显示随着稳定剂4-羟基-2,2,6,6-四甲基哌啶在用量为0.25%以上时,色差值ΔE已经小于1,产品表面视觉上已无色差感。考虑生产成本,选择稳定剂用量0.25%最佳。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。
Claims (6)
1.一种数字化木纹3D数码喷印装饰板的生产工艺,其特征在于,该工艺包括如下步骤:
步骤1)无醛基板的制备:
步骤I:使用大豆蛋白胶黏剂拼接芯板板条,规格达到2500mm×1260mm,含水率≤10%,厚度达到1.2-1.25cm,布胶量300g/规格板;
步骤II:将步骤I中的芯板进行大豆蛋白胶黏剂双面布胶,布胶量0.24-0.27kg/m2,双面配置2.6-3.2cm的中板层;
步骤III:将步骤II组坯板进行冷压,单位压力0.5-0.7MPa,时间50-80min,之后进行热压,单位压力0.5-0.7MPa,时间15-20min,温度120-127℃;步骤IV):将步骤III中的组坯板进行大豆蛋白胶黏剂双面布胶,布胶量为0.2-0.23kg/m2,并配置0.5mm-1.0mm的单板层;
步骤V):将步骤IV组坯板材冷压,单位压力0.5-0.7MPa,时间20-30min,热压单位压力0.5-0.7MPa,时间5-7min,温度115-125℃;
步骤2)涂覆底漆层:
步骤I:涂布水性附着底漆,涂布量0.7-0.9g/m2,使用热风干燥;
步骤II:涂布油性附着底漆,涂布量为19-20g/m2,使用UV干燥,能量为84mj/cm2;
步骤III:涂布腻子,涂布量为31-32g/m2,使用UV干燥,能量为69mj/cm2,固化后砂光;
步骤IV:涂布腻子,涂布量为18-19g/m2,再涂布砂光底漆,涂布量为34-38g/m2,使用UV干燥,能量为65mj/cm2,固化后砂光;
步骤V:涂布三道白色遮盖底漆,第一道涂布量11-13g/m2,UV干燥,能量为35mj/cm2;第二道涂布量17-19g/m2,UV干燥,能量为110mj/cm2;第三道涂布量17-19g/m2,UV干燥,能量为68mj/cm2,固化后进行砂光处理;
步骤VI:涂布白色底漆,涂布量为9-11g/m2,UV干燥,能量为46mj/cm2;
步骤VII:涂布两道加硬底漆,第一道涂布量为8-10g/m2,UV干燥,能量为73mj/cm2;第二道涂布量为8-10g/m2,UV干燥,能量为148mj/cm2;
步骤3)喷印3D数码木纹层:
步骤I:油墨附着底漆,涂布量为6-9g/m2,UV干燥,能量为54mj/cm2;
步骤II:油墨喷涂,涂布量为6-9g/m2,UV干燥,能量为79mj/cm2;
步骤4)涂覆面漆层
步骤I:附着底漆,涂布量为3-5g/m2,UV干燥,能量为73mj/cm2;
步骤II:加硬底漆,涂布量为12-15g/m2,UV干燥,能量为34mj/cm2;
步骤III:砂光底漆,涂布量为12-15g/m2,UV干燥,能量为53mj/cm2;固化后砂光;
步骤IV:加硬底漆,涂布量为13-15g/m2,UV干燥,能量为59mj/cm2;
步骤V:砂光底漆,涂布量为5-8g/m2,UV干燥,能量为66mj/cm2;固化后进行砂光;
步骤VI:修色底漆,涂布量为10-12g/m2,UV干燥,能量为102mj/cm2;
步骤VII:面漆分为两道,第一道涂布量为0.4-0.6g/m2,UV干燥,能量为134mj/cm2;第二道涂布量为0.6-1.0g/m2,UV干燥,能量为370mj/cm2;
面漆所使用的涂料中添加光吸收剂2-羟基-4-甲氧基二苯甲酮和稳定剂4-羟基-2,2,6,6-四甲基哌啶,其中,光吸收剂添加量为0.5%,稳定剂添加量为0.25%。
2.如权利要求1所述的数字化木纹3D数码喷印装饰板的生产工艺,其特征在于,芯板所用的木材有杉木、杨木、桐木、马六甲、松木,厚度为1.2cm-1.25cm。
3.如权利要求1所述的数字化木纹3D数码喷印装饰板的生产工艺,其特征在于,中板层所用的木材有杨木、桉木,中板层厚度为2.6-3.2mm。
4.如权利要求1所述的数字化木纹3D数码喷印装饰板的生产工艺,其特征在于,使用大豆蛋白胶黏剂为大豆蛋白粉和水性环氧树脂的混合物,混合比例为1:2。
5.如权利要求1所述的数字化木纹3D数码喷印装饰板的生产工艺,其特征在于,单板层所用材料为漂白杨木单板,厚度为0.5mm-1.0mm。
6.如权利要求1-5任意一项所述的生产工艺得到的数字化木纹3D数码喷印装饰板,其特征在于,结构从上往下包括以下几层:面漆层、3D数码木纹层、底漆层、基板层、底漆层、3D数码木纹层、面漆层;其中,所述的基板层包括正面单板层、正面中板层、芯板层、背面中板层、背面单板层。
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