Effect of Thermosetting-Resin Impregnated Paper Lamination on the Flatness of Decorated Ultra-Thin Fiberboard

LI Haiyu; LU Zetan; WEI Ming; LIU Fei; MIN Dexiu; LI Jian; XIAO Shaoliang

doi:10.12326/j.2096-9694.2025074

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Effect of Thermosetting-Resin Impregnated Paper Lamination on the Flatness of Decorated Ultra-Thin Fiberboard
1.Key Laboratory of Bio-based Material Science & Technology （Ministry of Education），Northeast Forestry University， Harbin 150040，Heilongjiang，China
2.Shandong Xingang Enterprise Group Co.，Ltd.，Linyi 276000，Shandong，China
Vol. 40, Issue 1, Pages: 74-81(2026)
DOI： 10.12326/j.2096-9694.2025074
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李海钰,卢泽潭,魏明等.浸渍胶膜纸贴面工艺对饰面超薄纤维板平整度的影响[J].木材科学与技术,2026,40(01):74-81. DOI： 10.12326/j.2096-9694.2025074.

LI Haiyu,LU Zetan,WEI Ming,et al.Effect of Thermosetting-Resin Impregnated Paper Lamination on the Flatness of Decorated Ultra-Thin Fiberboard[J].Chinese Journal of Wood Science and Technology,2026,40(01):74-81. DOI： 10.12326/j.2096-9694.2025074.

摘要

超薄纤维板是近年开发的一种厚度小于1.5 mm的高密度纤维板，以厚度薄、柔性好及附加值高等特点，被广泛应用于人造板饰面和装饰材料领域。然而，经浸渍胶膜纸饰面的超薄纤维板易出现严重卷曲现象，限制其实际应用。基于

生产实际需求，探究超薄纤维板厚度（0.8~1.5 mm）、三聚氰胺浸渍胶膜纸浸胶量（111.8%~167.4%）、热压工艺（时间、温度、压力）及后处理工艺（水喷淋与高压协同）对饰面超薄纤维板平整度（按GB/T 19367—2022《人造板的尺寸测定》，板材表面和水平表面的最大距离，结果以最大变形值和板材对角线之比表示）的影响。在试验范围内，饰面超薄纤维板的平整度随着纤维板厚度增加而降低，厚度为1.5 mm时平整度达到最优值37.65 mm/m；随着浸渍胶膜纸浸胶量增加而增大，浸胶量为111.8%时平整度达到最优值185.88 mm/m。热压工艺参数中热压温度对饰面超薄纤维板平整度的影响最显著，在热压温度190 ℃、压力2 MPa、时间10 s的条件下，平整度最优值为214.71 mm/m。X射线断层扫描、剖面密度仪分析结果表明，浸渍胶膜纸饰面超薄纤维板上下表面形成的非对称密度差和应力差是引起卷曲的主要原因（未贴纸面与贴纸面的剖面密度分别为860和1 250 kg/m

）。采用水喷淋与高压协同后处理工艺，可以有效降低饰面超薄纤维板上下表面的密度和应力差异，饰面超薄纤维板的平整度由221.57 mm/m降低至72.35 mm/m，显著改善卷曲现象。研究为饰面超薄纤维板改善平整度、解决卷曲问题提供可行的工艺指导。

Abstract

Ultra-thin fiberboard is a recently developed high-density fiberboard with a thickness less than 1.5 mm. Owing to its thin thickness

good flexibility and high added value

it is widely used in the field of decorative wood-based panels and decorative materials. However

severe warping often occurs after ultra-thin fiberboards have been coated with melamine impregnated paper

which limits its practical application. Based on industrial production conditions

this study investigated the effects of ultra-thin fiberboard thickness (0.8~1.5 mm)

resin content of melamine-resin impregnated paper (111.8%~167.4%)

hot-pressing parameters (time

temperature

and pressure)

and post-treatment (combined water spray and high-pressure treatment) on the flatness of decorated ultra-thin fiberboard with melamine-resin impregnated paper. Within the experimental scope

the flatness value decreased as fiberboard thickness increased

reaching the optimal value of 37.65 mm/m at a thickness of 1.5 mm. In contrast

the flatness increased with increasing resin content

with the optimal value of 185.88 mm/m obtained at a resin content of 111.8%. Among the hot-pressing parameters

temperature had the most significant effect on flatness. Under the conditions of 10 s duration

190 ℃ temperature

and 2 MPa pressure

the optimum flatness value was 214.71 mm/m. Analysis by X-ray computed tomography and profile density measurement indicated that asymmetric density and stress differences between the upper and lower surfaces of the decorated ultra-thin fiberboard were the main causes of warping; the profile densities of the uncoated and coated surfaces were 860 and 1 250 kg/m³

respectively. After the combined water-spraying and high-pressure post-treatment was applied

these density and stress differences between the two surfaces were effectively reduced

and the flatness value decreased from 221.57 mm/m to 72.35 mm/m

indicating a marked alleviation of warping. This study provides practical process guidance for manufacturing decorated ultra-thin fiberboard with optimal flatness.

关键词

Keywords

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