Fragrant paper capable of being ignited to give out fragrance and preparation method thereof

By functionalizing the paper-based material, a synergistic relationship between the combustion propagation rate and the fragrance release rate is established, solving the safety hazards and uneven fragrance release problems of existing incense paper products, achieving stable smoldering and uniform fragrance release, and enhancing brand interactivity and visual experience.

CN121519359APending Publication Date: 2026-02-13SICHUAN NEWMARKET DEPARTMENT STORE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202610044654.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-14
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

Existing incense paper products have safety hazards, uneven fragrance release, difficulty in controlling the burning process, and cannot combine visual and olfactory experiences, thus failing to meet the needs of brand interactive scenarios.

Method used

By functionalizing paper-based materials, a synergistic relationship between combustion propagation rate, heat transfer path, and fragrance release rate is established. By employing microencapsulation, polymer encapsulation, and distribution regulation of combustion-supporting components, combined with physical structure design, stable smoldering and uniform fragrance release are achieved.

Benefits of technology

It achieves safe ignition, stable smoldering, and rapid and uniform fragrance release, enhancing brand interactivity and visual experience, and is suitable for hang tags, greeting cards, and packaging materials.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121519359A_ABST
    Figure CN121519359A_ABST
Patent Text Reader

Abstract

The invention discloses fragrant paper capable of being ignited to give out fragrance and a preparation method of the fragrant paper, and belongs to the field of fragrant materials and functional paper. The aromatic paper takes a functionalized porous paper-based material as a base material, a functional system containing spices, combustion regulation and control, a carrier and stable components is loaded, and open-fire-free stable smoldering and continuous aroma release after ignition are realized by constructing a synergistic relationship of the spices, the combustion regulation and control, the carrier and the stable components. The perfume forms are various, combustion safety can be guaranteed through combustion regulation components, and thermal diffusion of the paper-based material can be regulated and optimized through a physical structure. The preparation method comprises five steps of base material pretreatment, functional system construction, loading and permeation, drying and shape fixing and post-treatment, and the smoldering rate of the fragrant paper is 0.8 cm / min-1. 2 cm / min. The problems that existing fragrant paper is slow in smell diffusion, large in potential safety hazard, uneven in fragrance release and the like are solved, the fragrant paper has the advantages of being safe in smoldering, rapid and uniform in fragrance release and adaptive to various fragrance types, can be combined with visual design and applied to materials such as brand interaction and packaging, and brand interactivity and memory points are enhanced.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fragrance materials and functional paper technology, in particular to a paper-based material treated by an engineering method, which can achieve safe and controllable smoldering and synchronous release of fragrance, and a preparation method thereof. The present application is particularly suitable for brand interaction scenarios that require visual and olfactory experience, such as hang tags, greeting cards, packaging materials, and exhibition supplies. BACKGROUND

[0002] Existing scented paper, scent-keeping cards, or scented paper products usually rely only on the natural volatilization or passive release of fragrances to achieve odor presentation, which makes the use mode limited to close-range sniffing, lacking obvious interactivity and ritual sense.

[0003] In actual application, the existing technology generally has the following problems: (1) Most scented paper products only have a fragrance attachment function and cannot be used by ignition, with low odor diffusion efficiency; (2) Some paper-based fragrance products are prone to produce open flame combustion or smoldering phenomenon after attempting to ignite, which poses a safety hazard; (3) The amount of smoke is difficult to control during the combustion process, which is easy to produce irritating odor or uncomfortable experience; (4) The release of fragrances under heat conditions is uneven, making it difficult to form a stable fragrance in a short time; (5) Existing scented paper products are difficult to combine visual design and olfactory experience, and cannot meet the needs of brand memory points and interactive experience in hang tags, greeting cards, and packaging materials.

[0004] Therefore, there is an urgent need for a scented paper material that can be safely ignited and stably smoldered without open flame, and can achieve rapid and uniform release of fragrance during smoldering, and a preparation method thereof. SUMMARY

[0005] The present application provides a scented paper that can be ignited to release fragrance and a preparation method thereof, solving the problems raised in the background art.

[0006] Technical solution: To solve the above technical problems, according to one aspect of the present application, more specifically, a scented paper that can be ignited to release fragrance, a functional treatment is performed on the paper-based material to build a synergistic relationship between the combustion propagation rate, heat transfer path, and fragrance release rate in the material.

[0007] The synergistic relationship is used to limit the generation of open flame, maintain a stable smoldering state, and make the fragrance release at the expected rate under heat conditions, thereby achieving stable smoldering and synchronous fragrance release.

[0008] The engineering means at least includes one or more of the following: (1) Fragrance microencapsulation, polymer coating or equivalent loading method, which makes the fragrance gradually release under heat conditions; (2) Distribution regulation of combustion-supporting and combustion-regulating components in the paper-based material in the internal or thickness direction, for adjusting the combustion rate and suppressing open flames; (3) Density regulation, layering treatment or pore structure design of the physical structure of the paper-based material, for adjusting the heat diffusion path.

[0009] According to another aspect of the present application, more specifically, a preparation method of ignitable incense paper, characterized in that, comprising the following steps: S1. Substrate pretreatment: selecting a porous paper-based material and performing cleaning treatment and surface energy regulation to enhance its carrying capacity for functional systems; S2. Functional system construction: preparing a functional treatment system containing fragrance components, combustion-regulating components and carrier and stabilizing components; S3. Loading and penetration: loading the functional treatment system into the paper-based material by means of soaking, coating, printing or their combination, and controlling the penetration depth and distribution gradient thereof; S4. Drying and solidification: drying the loaded paper-based material under controllable conditions, and stabilizing its internal structure by physical pressing to fix the functional components; S5. Post-treatment: aging the solidified paper-based material to stabilize the fragrance system, and cutting, shaping or surface decorating according to application requirements.

[0010] Further, the functional treatment system at least includes the following functional components: (1) Fragrance components: for providing odor, including but not limited to essential oil, perfume, microencapsulated fragrance or polymer-coated fragrance; (2) Combustion-regulating components: for adjusting the ignition behavior, maintaining the smoldering state and suppressing the generation of open flames; (3) Carrier and stabilizing components: for carrying the above components, regulating their release behavior and improving the stability of the system.

[0011] The specific substance selection and proportion of each component are configured to achieve the synergistic relationship of "stable smoldering and synchronous fragrance release".

[0012] Advantages: (1) The incense paper can be safely ignited and smolder stably without open flames; (2) The fragrance is released quickly and uniformly during smoldering, which can form a stable fragrance in the space in a short time; (3) It can be adapted to various fragrance systems and is flexible in application; ​(4) It can be combined with visual design and used for hang tags, greeting cards and packaging materials to significantly enhance brand interactivity and memorability. Attached Figure Description

[0013] Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation

[0014] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1: Preparation route of flavoring based on microcapsule Steps: Select 80g / m 2 The cotton pulp paper, after cleaning, is soaked in a mixture containing microencapsulated fragrance (the core material is sandalwood essential oil) and a burning incense. Immerse in the functional liquid of the control agent for 30 seconds. After removal, dry at a suitable temperature, and then press with cold rollers. Allow to fully mature to obtain the aromatherapy paper.

[0016] Effects: The resulting product is easily ignited and transitions to a continuous smoldering state (without open flame), with a smoldering rate of approximately 1.2 cm / min. It simultaneously releases sandalwood fragrance and diffuses the aroma quickly into the space.

[0017] Example 2: Fabrication Path Based on Layered Loading Structure Steps: Select 100g / m 2 The art paper is first coated with a base layer containing a combustion modifier on its back, and then dried. A fragrance layer containing blended essential oils (citrus notes) is printed on the front. After drying, it undergoes a light calendering process and is then allowed to fully mature.

[0018] Effect: After the product is ignited, due to the bottom layer control, the smoldering is stable (rate of about 0.8cm / min), and the fragrance on the front evaporates when heated, presenting a layered aroma.

[0019] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An incense paper that can be burned to emit fragrance, comprising a paper base material, characterized in that, The paper-based material is a functionalized porous paper-based material, which contains a functional system consisting of fragrance components, combustion regulating components, carriers, and stabilizing components. The functional system establishes a synergistic relationship between the combustion propagation rate, heat transfer path, and fragrance release rate within the paper-based material, enabling the scented paper to enter and maintain a stable smoldering state without open flame after ignition, and to continuously release fragrance during this smoldering process.

2. The incense paper that can be burned to emit fragrance according to claim 1, characterized in that, The fragrance components include at least one of essential oils, fragrances, microencapsulated fragrances, or fragrances treated with polymer encapsulation.

3. The incense paper that can be burned to emit fragrance according to claim 1, characterized in that, The combustion regulation component is a functional component used to promote ignition, maintain smoldering and / or inhibit the generation of open flame, and includes at least one of oxidants, alkali metal salts, alkaline earth metal salts, nitrates or equivalent materials with the same combustion regulation function.

4. The incense paper that can be burned to emit fragrance according to claim 1, characterized in that, The paper-based material undergoes physical structure regulation, including at least one of density regulation, layering treatment, or pore structure design, to adjust the heat diffusion path.

5. A method for preparing incense paper that can be burned to release fragrance, characterized in that, Includes the following steps: S1. Substrate pretreatment: Select porous paper-based materials and perform cleaning and surface energy regulation to enhance their load-bearing capacity for the functional system; S2. Functional System Construction: Formulate a functional processing system that includes flavoring components, combustion regulation components, and carrier and stabilizing components; S3. Loading and Penetration: The functional treatment system is loaded into the paper-based material by means of soaking, coating, printing or a combination thereof, and its penetration depth and distribution gradient are controlled; S4. Drying and Consolidation: The loaded paper-based material is dried under controlled conditions, and its internal structure is stabilized and functional components are fixed by physical pressing. S5. Post-processing: The cured paper base material is aged to stabilize the fragrance system, and then cut, shaped or decorated according to application requirements.

6. The method for preparing an incense-emitting paper that can be burned according to claim 5, characterized in that, The smoldering rate of the incense paper after ignition is 0.8 cm / min to 1.2 cm / min.

7. The method for preparing an incense-emitting paper that can be burned according to claim 5, characterized in that, The loading method described in step S3 is a layered loading method, which includes first coating a bottom layer containing a combustion regulator on the back of the paper base material, and then printing a fragrance layer containing fragrance components on the front after drying.

8. The method for preparing an incense-emitting paper that can be burned according to claim 5, characterized in that, The physical pressing method in step S4 includes at least one of cold pressing, hot pressing, rolling pressing, calendering, or lamination.

9. The method for preparing an incense-emitting paper that can be burned according to claim 2, characterized in that, The aromatherapy paper prepared by the method is used in the preparation of brand interactive materials, packaging communication materials, exhibition products or spatial fragrance experience products. The aromatherapy paper adapts to the fragrance experience and interactive needs of the products by constructing a synergistic relationship between the combustion propagation rate, heat transfer path and fragrance release rate.