Building Board Packaging with Matching Roughness to Suppress Gloss
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Solution Overview
Problem
Building boards with coated surfaces develop unintended gloss when pressed, especially in stacked packages, leading to noticeable appearance issues in exterior and interior walls due to microscopic deformation of the coating film's texture.
Innovation Solution
A packaging system where the building boards are stacked with packing sheets that have a roughness profile matching the coating film's surface, minimizing gloss generation by transferring the packing sheet's roughness profile to the coating film, thus maintaining the original texture and preventing new gloss formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If building boards are stacked in multiple tiers on a transport pallet, then transportation efficiency is improved, but unintended gloss is generated on the coating film of the lowermost building board due to loading
Solution Approach 1:
A packing sheet with a roughness profile matching the coating film is placed on the building board before stacking. This preliminary protective measure ensures that when the board is loaded and pressed during transportation, the coating film's texture is preserved rather than deformed, preventing gloss formation while allowing efficient stacking
Solution Approach 2:
The packing sheet acts as an intermediary between the building board and the external loading forces. It transfers the pressing force while maintaining the coating film's microscopic roughness profile, thereby preventing direct deformation of the coating surface during stacked transportation
2Object-affected harmful factors
If a smooth packing sheet is used to protect the building board surface, then protection is provided, but microscopic deformation occurs creating new gloss
Solution Approach 1:
The packing sheet is designed with a specific local quality - a roughness profile that matches the coating film's microscopic texture. This localized texture matching ensures that the protected surface maintains its original non-glossy appearance while still receiving protection during handling and transportation
3Strength
If the coating film surface is pressed during stacking, then the building board is protected from damage, but the texture is deformed and gloss is generated
Solution Approach 1:
The packing sheet creates a copy of the coating film's microscopic roughness profile on its own surface. When pressing occurs, this copied texture is transferred to the coating film, preserving the original non-glossy appearance while still providing the necessary mechanical protection during stacking
Data Source
AI summary
Provided are a building board package suitable to suppress generation of a gloss that could be caused as a result of pressing a coating film on the surface of a building board, and a method for manufacturing the building board package. A building board package X1 according to the present invention includes a first building board 10, and a packing sheet 20 stacked on top of the first building board 10. The first building board 10 has a first surface 11 on the packing sheet 20 side, and a second surface 12 opposite the first surface 11. The first surface 11 includes a first coating film surface 11A. The packing sheet 20 has a third surface 21 on the first building board 10 side, and a fourth surface 22 opposite the third surface 21. The third surface 21 is in contact with the first coating film surface 11A. An absolute value of a difference between a 60-degree gloss value of the first coating film surface 11A and a 60-degree gloss value of the third surface 21 is 3.0 or less, and an absolute value of a difference between an 85-degree gloss value of the first coating film surface 11A and an 85-degree gloss value of the third surface 21 is 3.0 or less. A method for manufacturing a building board package according to the present invention includes the step of stacking the first building board 10 and the packing sheet 20 on top of each other such that the first coating film surface 11A and the third surface 21 are in contact with each other.