A slow-release fragrance profile for a decorative laminate
By designing a slow-release fragrance-coated engineered wood panel, using a microcapsule storage layer and a gradient microporous protective layer, the problem of releasing harmful gases from traditional engineered wood panels is solved, achieving stable storage and long-lasting release of fragrance, thus improving indoor air quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DIANJIN NEW MATERIAL RES INST (XIAMEN) CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional engineered wood products continuously release formaldehyde, acetic acid, and terpenoid volatile organic compounds during production and use, leading to indoor air pollution and unpleasant odors, affecting the living environment and health.
It adopts a slow-release fragrance-finished artificial board structure, including a substrate layer, a microcapsule storage layer, a controlled-release protective layer, and a gradient microporous protective layer. It utilizes epoxy acrylate and nano-silica as mechanical barriers, combined with a gradient microporous design, to achieve stable storage and long-lasting release of fragrance.
By using environmentally friendly microcapsule encapsulation technology and a gradient microporous structure, the stability of the fragrance is ensured during processing, achieving long-lasting fragrance retention, improving indoor air quality, and reducing the release of harmful substances.
Smart Images

Figure CN224476316U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the technical field of engineered wood panels, specifically a slow-release fragrance-coated engineered wood panel. Background Technology
[0002] With the rapid development of interior decoration and furniture manufacturing, decorative engineered wood panels have become an indispensable basic material for modern homes. However, traditional engineered wood panels commonly use aldehyde resin adhesives in their production process, resulting in the continuous release of volatile organic compounds such as formaldehyde, acetic acid, and terpenes during processing and use. These harmful substances not only cause indoor air pollution but also produce unpleasant, irritating odors, seriously affecting the living environment and human health.
[0003] In recent years, with the improvement of residents' living standards and the enhancement of environmental awareness, consumers have increasingly higher requirements for indoor air quality. Market research data shows that the complaint rate for decoration and furniture products caused by odor problems has climbed to over 1% and is showing a continuous upward trend. This phenomenon reflects the technical deficiencies of traditional engineered wood products in odor control, highlighting the urgent need for innovative solutions. Utility Model Content
[0004] In order to solve the problems in the background art, the purpose of this utility model is to provide a slow-release fragrance-coated artificial board to solve the problem of indoor odor.
[0005] A slow-release fragrance-coated engineered wood panel includes a substrate layer, a microcapsule storage layer, a controlled-release protective layer, a gradient microporous protective layer, and a decorative layer.
[0006] The substrate layer can be particleboard, plywood, blockboard, fiberboard, etc., and its thickness can be selected according to requirements;
[0007] The microcapsule storage layer, which serves as a fragrance carrier, solidifies the microcapsule suspension on the substrate surface at low temperature. It is furthest from the hot-pressing surface and is less affected by heat.
[0008] Preferably, the controlled-release protective layer, which serves as a mechanical barrier, is mainly composed of epoxy acrylate and nano-silica, and is applied to the surface of the microcapsule storage layer by UV curing.
[0009] Preferably, the gradient microporous protective layer comprises an outer layer, a middle layer, and an inner layer. The outer layer has large pores, with a pore size of 150-200 μm and a microcapsule density of 5%-8%, designed to respond quickly to environmental changes and initiate the initial fragrance. The middle layer is a transition layer with a pore size of 100-150 μm and a microcapsule density of 10%-12%, designed to balance the release rate and connect the inner and outer layers. The inner layer has small pores, with a pore size of 50-100 μm and a microcapsule density of 15%-20%, designed for long-term sustained release and to maintain fragrance persistence.
[0010] Preferably, the decorative layer, namely melamine-impregnated paper, serves as a surface decoration.
[0011] Preferably, the slow-release fragrance-coated artificial board has a symmetrical upper and lower structure with the substrate as the center.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This invention employs environmentally friendly microcapsule encapsulation technology to ensure the stability of the fragrance during processing; furthermore, it utilizes a gradient microporous structure design to achieve long-lasting fragrance retention.
[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0015] Figure 1 This is a front view of the present invention;
[0016] Figure 2 yes Figure 1 Structural layer diagram at point 3;
[0017] Figure 3 This is a partially exploded view of the present invention.
[0018] In the figure: 1. Substrate layer; 2. Microcapsule storage layer; 3. Controlled release protective layer; 4. Gradient microporous protective layer; 5. Finishing layer; 41. Inner layer; 42. Middle layer; 43. Outer layer. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.
[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0022] Please refer to the appendix carefully. Figures 1-3 A slow-release fragrance-coated decorative artificial board, characterized in that it comprises a substrate layer 1, a microcapsule storage layer 2, a controlled-release protective layer 3, a gradient microporous protective layer 4, and a decorative layer 5;
[0023] The substrate layer 1 can be particleboard, plywood, blockboard, fiberboard, etc., and its thickness can be selected according to requirements;
[0024] The microcapsule storage layer 2, which serves as a fragrance carrier, solidifies the microcapsule suspension on the substrate surface at low temperature. It is furthest from the hot-pressing surface and is less affected by heat.
[0025] Furthermore, the controlled-release protective layer 3, which serves as a mechanical barrier, is mainly composed of epoxy acrylate and nano-silica, and is attached to the surface of the microcapsule storage layer 2 by UV curing.
[0026] Furthermore, the gradient microporous protective layer 4 has an outer layer 43 with large pores (150-200 μm) and a microcapsule density of 5%-8%, designed to respond quickly to environmental changes and initiate the initial fragrance release; a middle layer 42 is a transition layer with pores (100-150 μm) and a microcapsule density of 10%-12%, designed to balance the release rate and connect the inner and outer layers 43; and an inner layer 41 with small pores (50-100 μm) and a microcapsule density of 15%-20%, designed for long-term sustained release and to maintain fragrance persistence.
[0027] Furthermore, the decorative layer 5, namely melamine-impregnated film paper, serves as a surface decoration.
[0028] Furthermore, the aforementioned slow-release fragrance-coated artificial board has a symmetrical upper and lower structure centered on the substrate.
[0029] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.
Claims
1. A slow-release fragrance-coated decorative engineered wood panel, characterized in that: It includes a substrate layer (1), a microcapsule storage layer (2), a controlled-release protective layer (3), a gradient microporous protective layer (4), and a finishing layer (5); The substrate layer (1) can be particleboard, plywood, blockboard, or fiberboard; The microcapsule storage layer (2) is cured on the surface of the substrate at low temperature.
2. The slow-release fragrance-coated artificial board according to claim 1, characterized in that: The controlled-release protective layer (3) is attached to the surface of the microcapsule storage layer (2) by UV curing.
3. The slow-release fragrance-coated artificial board according to claim 2, characterized in that: The gradient microporous protective layer (4) comprises an outer layer (43), a middle layer (42), and an inner layer (41). The outer layer (43) has a large pore size of 150-200 μm and a microcapsule density of 5%-8%. The middle layer (42) is a transition layer with a pore size of 100-150 μm and a microcapsule density of 10%-12%. The inner layer (41) has small pores with a pore size of 50-100 μm and a microcapsule density of 15%-20%.
4. The slow-release fragrance-coated artificial board according to claim 3, characterized in that: The finishing layer (5) is made of melamine-impregnated adhesive film paper.
5. The slow-release fragrance-coated artificial board according to claim 4, characterized in that: The aforementioned slow-release fragrance-infused decorative engineered wood panel has a symmetrical upper and lower structure centered on the substrate.