Fireproof environment-friendly label
Through a multi-layer fire-resistant structural design, the problem of environmental protection labels being easily damaged when affixed to fire sources or high-temperature environments has been solved, ensuring the integrity and environmental friendliness of information transmission, and improving fire resistance and flexibility of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GREEN FEATHER NEW MATERIALS CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-14
AI Technical Summary
Existing environmental protection labels are prone to deformation, blurring and fading of printed information, or even ignition when affixed to fire sources or high-temperature environments, resulting in information damage and affecting normal use and information transmission.
It adopts a multi-layer fireproof structure design, including a flame-retardant adhesive layer, a flame-retardant base layer, a fireproof layer, a sacrificial layer, and a thermochromic coating. The environmental label is wrapped around the edge of the flame-retardant base layer and fixedly connected to the flame-retardant adhesive layer to form a multi-layer fire barrier. It uses materials such as intumescent flame-retardant coating and ceramic fiber film, in conjunction with thermochromic coating, to achieve high temperature warning and fire protection.
It effectively prevents environmental labels from being damaged by fire or high-temperature environments, ensures the integrity of information transmission, has a high-temperature warning function, improves fire resistance and environmental protection, extends service life, and can be naturally degraded after use.
Smart Images

Figure CN224501404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmentally friendly label technology, specifically to a fire-resistant environmentally friendly label. Background Technology
[0002] Eco-labels are labels used to indicate that products meet environmental standards in production, use, and recycling. They convey information about the product's environmental attributes to consumers, including the environmental friendliness of materials, energy efficiency, and recyclability, helping consumers make green choices.
[0003] Utility model patent CN215068922U discloses an environmentally friendly label, including a label body. The label body comprises a base layer, an image layer, an irreversible thermochromic layer, and a protective layer. The base layer has a protective layer at its bottom, and the top of the base layer sequentially includes the image layer, the irreversible thermochromic layer, and the protective layer. One side of the label body extends to a side edge, which has an adhesive layer with a biodegradable release film. The adhesive layer is located on the front of the side edge. A first crease is formed between the side edge and the label body. A tongue is located in the middle of the other side edge, and a second crease is formed between the folded ear and the side edge. The label body has a slot for inserting the tongue. This allows for intuitive temperature monitoring, preventing spoilage of refrigerated items due to negligence.
[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: While existing environmentally friendly labels can achieve intuitive temperature monitoring and prevent refrigerated items from spoiling due to negligence, in practical applications, if there is a fire source or high temperature environment in the surrounding environment, such as when sparks fly or the label is close to a heat source, the label material is prone to deformation, the printed information will become blurred and faded, and it is also easily ignited or even burned rapidly, causing damage to the information it carries, which seriously affects the normal use of the label and information transmission. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a fire-resistant environmentally friendly label, which can effectively solve the problem that the fire resistance of the existing environmentally friendly label is insufficient, resulting in easy damage to the information.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model provides a fireproof environmentally friendly label, comprising: an environmentally friendly label body, a flame-retardant adhesive layer adhered to the bottom of the environmentally friendly label body, a flame-retardant base layer fixedly connected to the surface of the environmentally friendly label body, a fireproof layer fixedly connected to the top of the flame-retardant base layer, a sacrificial layer wrapped around the outside of the fireproof layer, a thermochromic coating fixedly connected to the outside of the sacrificial layer, and the flame-retardant base layer wrapping around the environmentally friendly label body with its edge fixedly connected to the flame-retardant adhesive layer.
[0008] Furthermore, the sacrificial layer is an intumescent flame-retardant coating made of biodegradable resin mixed with expanded graphite, which expands to form a heat-insulating char layer when exposed to fire.
[0009] Furthermore, the flame-retardant base layer is selected from paper-based substrates or film-like substrates. The paper-based substrate contains bamboo pulp fiber, and the film-like substrate contains recycled PET material. A halogen-free flame retardant is also added to the flame-retardant base layer.
[0010] Furthermore, the fireproof layer is selected from ceramic fiber film, and the thickness of the fireproof layer is set according to the usage environment, which can maintain structural integrity at high temperatures and does not release toxic gases.
[0011] Furthermore, the thermochromic coating contains a reversible thermochromic pigment, the thermochromic coating exhibits a first color state at room temperature, and changes to a second color state when heated, and the thermochromic coating is connected to the sacrificial layer through a biodegradable release film.
[0012] Furthermore, the flame-retardant base layer wraps around the edge of the environmentally friendly label body to form a sealed border of a predetermined width. The edge of the flame-retardant base layer is fixedly connected to the flame-retardant adhesive layer through a hot-pressing process, effectively preventing flames from entering from the edge.
[0013] Furthermore, the environmentally friendly label body comprises biodegradable plant fiber paper, and the surface of the environmentally friendly label body is provided with a printing layer using water-based flame-retardant ink, and the water-based flame-retardant ink contains nano flame retardants.
[0014] Furthermore, the flame-retardant adhesive layer comprises a bio-based flame-retardant adhesive, and the bio-based flame-retardant adhesive is based on starch or plant protein and mixed with magnesium hydroxide flame retardant.
[0015] Beneficial effects
[0016] The technical solution provided by this utility model has the following advantages compared with the known prior art:
[0017] I. This utility model comprises an environmentally friendly label body, a flame-retardant adhesive layer, a flame-retardant base layer, a fireproof layer, a sacrificial layer, and a thermochromic coating. The flame-retardant base layer wraps around the environmentally friendly label body, and the edges are fixedly connected to the flame-retardant adhesive layer. Each layer forms an integral structure, working together to construct a multi-layered fire barrier, providing all-round protection for the environmentally friendly label body. This achieves effective fire prevention through multi-layered synergy, avoiding damage to the body from fire or high temperatures, and ensuring the complete transmission of label information.
[0018] II. This utility model, by setting a sacrificial layer, a flame-retardant base layer and a fireproof layer, the sacrificial layer expands when exposed to fire to form a heat-insulating char layer, which works in conjunction with an environmentally friendly flame-retardant base layer containing halogen-free flame retardants and a fireproof layer with stable performance at high temperatures. The sacrificial layer blocks flames, the flame-retardant base layer enhances flame-retardant ability, and the fireproof layer blocks high temperatures and prevents toxic gases, thus achieving the effect of improving fire protection performance while taking into account the environmental friendliness of materials and the safety of use, and adapting to the fire protection needs of multiple scenarios.
[0019] Third, this utility model, by setting a thermochromic coating, an environmentally friendly label body, and a flame-retardant adhesive layer, allows the thermochromic coating to change color when heated and can be peeled off. Combined with the body containing biodegradable materials and an environmentally friendly printing layer, and the bio-based flame-retardant adhesive layer, it can not only indicate the effects of high temperature, but also ensure environmental protection and adhesion reliability. It achieves the effect of having a high temperature warning function, improving the flexibility of use and environmental sustainability, and extending the service life. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the present invention;
[0022] Figure 2 This is a schematic diagram showing the disassembled parts of this utility model;
[0023] Figure 3 This is a side view diagram showing the disassembled parts of this utility model;
[0024] Figure 4 This is a plan view of the present invention;
[0025] Figure 5 This is a planar split diagram of the present invention.
[0026] Attached labels: 1. Environmental label body; 2. Flame-retardant adhesive layer; 3. Flame-retardant base layer; 4. Fireproof layer; 5. Sacrificial layer; 6. Thermosensitive color-changing coating. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] The present invention will be further described below with reference to the embodiments.
[0029] See attached document Figure 1-5 A fire-resistant environmentally friendly label includes: an environmentally friendly label body 1; a flame-retardant adhesive layer 2 is adhesively connected to the bottom of the environmentally friendly label body 1; a flame-retardant base layer 3 is fixedly connected to the surface of the environmentally friendly label body 1; a fireproof layer 4 is fixedly connected to the top of the flame-retardant base layer 3; a sacrificial layer 5 is wrapped around the outside of the fireproof layer 4; a thermosensitive color-changing coating 6 is fixedly connected to the outside of the sacrificial layer 5; the flame-retardant base layer 3 wraps around the environmentally friendly label body 1, and its edges are fixedly connected to the flame-retardant adhesive layer 2; the environmentally friendly label body 1 is connected to the flame-retardant adhesive layer 2, the flame-retardant base layer 3, the fireproof layer 4, the sacrificial layer 5, and the thermosensitive color-changing coating 6. The combination of color-changing coating 6 and other structures forms a label with a multi-layer fire-retardant structure. The layers work together to provide fire protection from different levels, improving the overall fire resistance and practicality of the label. The sacrificial layer 5 is an intumescent flame-retardant coating made of biodegradable resin mixed with expanded graphite. When exposed to fire, it can expand to several times its original thickness, forming a honeycomb-shaped heat-insulating char layer. The sacrificial layer 5 is made of specific materials that can expand to form a honeycomb-shaped heat-insulating char layer when exposed to fire, which can effectively block heat transfer and protect the internal structure from flame damage. At the same time, the material is biodegradable and meets environmental protection requirements.
[0030] The flame-retardant base layer 3 is selected from paper-based or film-based substrates. The paper-based substrate includes bamboo pulp fiber, and the film-based substrate includes recycled PET material. The flame-retardant base layer 3 also contains a halogen-free flame retardant selected from melamine phosphate. The flame-retardant base layer 3 has a high oxygen index and high-temperature resistance. By using environmentally friendly materials and adding a halogen-free flame retardant, the flame-retardant base layer 3 ensures good flame-retardant performance, a high oxygen index, and high-temperature resistance, while also conforming to environmental protection principles. Paper or film-based substrates can be selected according to actual needs, increasing the flexibility of use. The fireproof layer 4 is selected from ceramic fiber film. The thickness of the fireproof layer 4 is set according to the usage environment, enabling it to maintain structural integrity at high temperatures without releasing toxic gases. The fireproof layer 4 uses specific materials and its thickness is set according to the usage environment. Its thickness can be adjusted according to the usage scenario, maintaining structural integrity at high temperatures without releasing toxic gases, further enhancing the fire resistance of the label, while avoiding the harm to the environment and human body caused by toxic gases at high temperatures.
[0031] The thermochromic coating 6 contains reversible thermochromic pigments and has a predetermined color-changing temperature range. At room temperature, the thermochromic coating 6 exhibits a first color state, and changes to a second color state upon heating. The thermochromic coating 6 is connected to the sacrificial layer 5 via a biodegradable release film, possessing peelability and heat-induced self-detachment. When the thermochromic coating 6 is exposed to fire or within a certain temperature range, it will change to the second color state due to temperature changes, visually indicating that the area has been affected by high temperatures, serving as a warning. Furthermore, its peelability allows it to be peeled off even if the coating is damaged by high temperatures, exposing the underlying material. The sacrificial layer 5 and other structures still provide fire protection, ensuring that the overall structure of the label can continue to be used to a certain extent. This prevents the label from becoming unusable due to damage to the local coating. The flame-retardant base layer 3 wraps around the edge of the environmentally friendly label body 1 to form a sealed border of a predetermined width. The edge of the flame-retardant base layer 3 is fixedly connected to the flame-retardant adhesive layer 2 through a hot-pressing process. The flame-retardant base layer 3 wraps around the edge of the environmentally friendly label body 1 to form a sealed border, and is connected to the flame-retardant adhesive layer 2 through a hot-pressing process. This effectively prevents flames from entering from the edge, enhancing the overall sealing and fire-resistant effect of the label.
[0032] The eco-friendly label body 1 comprises biodegradable plant fiber paper. The surface of the eco-friendly label body 1 has a printing layer using water-based flame-retardant ink containing nano-flame retardants. The use of biodegradable plant fiber paper and water-based flame-retardant ink with nano-flame retardants ensures environmental performance while preventing information ambiguity due to high temperatures. The flame-retardant adhesive layer 2 comprises a bio-based flame-retardant adhesive. This bio-based flame-retardant adhesive uses starch or plant protein as a base material and is mixed with magnesium hydroxide flame retardant. The flame-retardant adhesive layer 2 has room-temperature bonding strength and flame-retardant properties when exposed to fire. The use of bio-based flame-retardant adhesive, with starch or plant protein as a base material and mixed with magnesium hydroxide flame retardant, ensures bonding strength at room temperature and flame-retardant properties when exposed to fire. This enhances fire resistance while fulfilling the label fixing function and meeting environmental requirements.
[0033] Working principle: In daily use, the fire-retardant environmentally friendly label achieves a stable connection with the object through the flame-retardant adhesive layer 2. Its bio-based flame-retardant adhesive provides reliable bonding strength at room temperature. At the same time, the environmentally friendly label body 1, with its biodegradable plant fiber paper and water-based flame-retardant ink printing layer containing nano flame retardants, clearly conveys the product's environmental information. The outer thermochromic coating 6 remains stable in its first color state. Under the protection of the sealed frame formed by the flame-retardant base layer 3, the edges are tightly bonded to the flame-retardant adhesive layer 2 through heat pressing, forming a preliminary fire barrier. This ensures that the label can not only perform its identification function normally in normal environments, but also has basic structural stability.
[0034] When the ambient temperature rises to the predetermined color-changing range of the thermochromic coating 6, the reversible thermochromic pigment it contains will react and change from the first color state to the second color state, which intuitively indicates that the area has been affected by high temperature and plays a timely warning role. If the temperature continues to rise and approaches the high temperature critical value, the degradable release film between the thermochromic coating 6 and the sacrificial layer 5 will automatically fall off to prevent it from affecting the inner layer structure after being damaged by high temperature. At this time, the sacrificial layer 5 is exposed.
[0035] If exposed to open flames or higher temperatures, the sacrificial layer 5, as an intumescent flame-retardant coating, will rapidly expand to several times its original thickness, forming a honeycomb-shaped heat-insulating carbon layer using expanded graphite mixed with biodegradable resin. This structure can effectively prevent flames from directly contacting the inner layer, significantly reducing heat transfer. At the same time, the fireproof layer 4, with its predetermined thickness, maintains structural integrity at high temperatures, neither releasing toxic gases nor further blocking heat penetration. The flame-retardant base layer 3 works synergistically with the fireproof layer 4 to enhance the flame-retardant effect.
[0036] Even if the outer structure is partially damaged due to prolonged high temperatures, the sealed border formed by the flame-retardant base layer 3 wrapping the environmentally friendly label body 1 can still effectively prevent flames from entering from the edge. Combined with the flame-retardant adhesive layer 2's melt-retardant properties when exposed to fire, it forms a flame barrier, protecting the internal environmentally friendly label body 1 from damage and ensuring that the information it carries is always clearly identifiable. In addition, all structures are made of biodegradable materials, which can naturally degrade after the label reaches the end of its service life, taking into account both fire resistance and environmental sustainability.
[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. A fire-resistant environmentally friendly label, comprising an environmentally friendly label body (1), characterized in that: The bottom of the environmental label body (1) is glued with a flame-retardant adhesive layer (2), the surface of the environmental label body (1) is fixedly connected with a flame-retardant base layer (3), the top of the flame-retardant base layer (3) is fixedly connected with a fireproof layer (4), the outside of the fireproof layer (4) is wrapped with a sacrificial layer (5), the outside of the sacrificial layer (5) is fixedly connected with a thermosensitive color-changing coating (6), and the flame-retardant base layer (3) wraps the environmental label body (1) and its edge is fixedly connected with the flame-retardant adhesive layer (2).
2. The fire-retardant environmentally friendly label according to claim 1, characterized in that, The sacrificial layer (5) is an intumescent flame-retardant coating made of biodegradable resin mixed with intumescent graphite, which expands to form a heat-insulating carbon layer when exposed to fire.
3. The fire-resistant and environmentally friendly label according to claim 1, characterized in that, The flame-retardant base layer (3) is selected from paper substrate or film substrate. The paper substrate contains bamboo pulp fiber, and the film substrate contains recycled PET material. The flame-retardant base layer (3) also contains halogen-free flame retardant.
4. The fire-retardant environmentally friendly label according to claim 1, characterized in that, The fireproof layer (4) is selected from ceramic fiber film. The thickness of the fireproof layer (4) is set according to the usage environment. It can maintain structural integrity at high temperature and does not release toxic gases.
5. The fire-retardant environmentally friendly label according to claim 1, characterized in that, The thermochromic coating (6) contains reversible thermochromic pigments. The thermochromic coating (6) presents a first color state at room temperature and changes to a second color state when heated. The thermochromic coating (6) and the sacrificial layer (5) are connected by a biodegradable release film.
6. The fire-retardant environmentally friendly label according to claim 1, characterized in that, The flame-retardant base layer (3) wraps around the edge of the environmental label sticker body (1) to form a sealed border of a predetermined width. The edge of the flame-retardant base layer (3) is fixedly connected to the flame-retardant adhesive layer (2) by a hot pressing process, which effectively prevents flames from entering from the edge.
7. The fire-retardant environmentally friendly label according to claim 1, characterized in that, The environmentally friendly label body (1) contains biodegradable plant fiber paper, and the surface of the environmentally friendly label body (1) is provided with a printing layer using water-based flame-retardant ink, and the water-based flame-retardant ink contains nano flame retardants.
8. The fire-retardant environmentally friendly label according to claim 1, characterized in that, The flame-retardant adhesive layer (2) contains a bio-based flame-retardant adhesive, and the bio-based flame-retardant adhesive is based on starch or plant protein and mixed with magnesium hydroxide flame retardant.