Heating wet tissue based on bi-component microcapsules and wet tissue base material thereof

Abstract

The invention relates to a heating wet tissue based on a bi-component microcapsule and a wet tissue base material thereof, which are used for solving the technical problem that the existing wet tissue is poor in use experience and even cannot be used in a cold area. Comprising a packaging bag, the packaging bag comprises a dry cavity and a wet cavity which are sealed respectively, the dry cavity and the wet cavity are separated through a breakable isolation belt, a wet tissue base material is contained in the dry cavity, care solution is contained in the wet cavity, and the care solution can penetrate through the isolation belt to enter the dry cavity by extruding the wet cavity; the wet tissue base material is coated with the microcapsule coating, the microcapsule coating comprises a plurality of bi-component microcapsules, each bi-component microcapsule comprises an outer capsule wall, a first capsule core and a second capsule core are arranged in each outer capsule wall, each first capsule core comprises a first capsule core wall and a heat generating agent wrapped in the first capsule core wall, and each second capsule core comprises a second capsule core wall and an activating agent wrapped in the second capsule core wall; when the wet tissue base material is rubbed, the first capsule core wall and the second capsule core wall can be broken, so that the heating agent and the activating agent are mixed to release heat.

Description

Technical Field

[0001] This invention relates to a heat-generating wipe based on two-component microcapsules and the wipe substrate thereof. Background Technology

[0002] Due to their convenience and hygiene, wet wipes are widely used in personal care, medical disinfection, and household cleaning. However, in cold seasons or environments, using room temperature wet wipes directly can cause a cold and uncomfortable sensation, affecting the user experience. In some extremely cold regions, wet wipes may even freeze and become unusable. Summary of the Invention

[0003] The purpose of this invention is to provide a heat-generating wet wipe based on two-component microcapsules and its wet wipe substrate, in order to solve the technical problem that existing wet wipes have a poor user experience or are even unusable in cold regions.

[0004] The technical solution of the present invention for the heated wipes based on two-component microcapsules is as follows: The heated wipes based on two-component microcapsules include: The packaging bag includes a separately sealed dry chamber and a wet chamber, which are separated by a tear-resistant insulating strip. The dry chamber contains a wet wipe substrate, and the wet chamber contains a care solution. By squeezing the wet chamber, the care solution can pass through the insulating strip and enter the dry chamber. Microcapsule coating, coated on a wet wipe substrate, includes multiple two-component microcapsules. Each two-component microcapsule includes an outer capsule wall, and a first capsule core and a second capsule core are disposed inside the outer capsule wall. The first capsule core includes a first capsule core wall and a heating agent encapsulated within the first capsule core wall. The second capsule core includes a second capsule core wall and an activator encapsulated within the second capsule core wall. When the wet wipe substrate is rubbed, the first and second core walls can rupture, allowing the heating agent and activator to mix and release heat.

[0005] Based on the above scheme, the following improvements are made: the outer capsule wall is made of a flexible and unbreakable material.

[0006] Based on the above scheme, further improvements are made as follows: the heating agent is composed of at least one of anhydrous calcium carbonate and calcium bicarbonate, and the activator is composed of at least one of citric acid aqueous solution, lactic acid aqueous solution and tartaric acid aqueous solution.

[0007] Based on the above scheme, further improvements are made as follows: the first and second capsule core walls are composed of at least one of sodium alginate, gelatin and starch.

[0008] Based on the above scheme, further improvements are made as follows: the particle size of the two-component microcapsules is 0.1-1000μm, and the thickness of the outer capsule wall is 0.01-200μm.

[0009] The technical solution of the wet wipe substrate of the present invention is as follows: The wet wipe substrate includes a substrate body and a two-component microcapsule coated on the substrate body. The two-component microcapsule includes an outer capsule wall, and a first capsule core and a second capsule core are provided inside the outer capsule wall. The first capsule core includes a first capsule core wall and a heating agent wrapped in the first capsule core wall. The second capsule core includes a second capsule core wall and an activator wrapped in the second capsule core wall. When the wet wipe substrate is rubbed, the first and second core walls can rupture, allowing the heating agent and activator to mix and release heat.

[0010] Based on the above scheme, the following improvements are made: the outer capsule wall is made of a flexible and unbreakable material.

[0011] Based on the above scheme, further improvements are made as follows: the heating agent is composed of at least one of anhydrous calcium carbonate and calcium bicarbonate, and the activator is composed of at least one of citric acid aqueous solution, lactic acid aqueous solution and tartaric acid aqueous solution.

[0012] Based on the above scheme, further improvements are made as follows: the first and second capsule core walls are composed of at least one of sodium alginate, gelatin and starch.

[0013] Based on the above scheme, further improvements are made as follows: the particle size of the two-component microcapsules is 0.1-1000μm, and the thickness of the outer capsule wall is 0.01-200μm.

[0014] The beneficial effects of this technical solution are as follows: When using the heat-generating wipes based on bicomponent microcapsules and their base material, the wet chamber is squeezed, and the pressure of the care liquid breaks through the isolation strip to enter the dry chamber, thereby wetting the wipe base material. By rubbing the wipe base material, the walls of the first and second cores of the bicomponent microcapsules are ruptured to release the heating agent and activator inside. After mixing, the two react to release heat, thereby heating the wipes. Moreover, when the wipes are rubbed with different forces or for different lengths, the number of microcapsules ruptured varies, and the amount of heat released also varies. This allows for changing the temperature of the wipes or adjusting the heating time of the wipes, thereby improving user comfort in cold regions or seasons.

[0015] Furthermore, when the outer shell is made of a flexible and unbreakable material, the outer shell does not break during rubbing; only the inner first and second core walls break and mix to release heat. The heat is transferred to the wipe through the outer shell. Since the outer shell does not break, the heating agent and activator inside the first and second cores will not come into contact with the cleaning solution. This avoids contaminating the cleaning solution and prevents the cleaning solution from diluting the heating agent or activator, which would hinder the exothermic reaction and result in insufficient heat release. Moreover, since the outer shell cannot break, there is no need to select high-cost materials with particularly high environmental protection standards for the activator and heating agent, thereby reducing costs to a certain extent. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of a specific embodiment of the heated wipes based on two-component microcapsules of the present invention; Figure 2 for Figure 1 A schematic diagram of the internal structure after a transverse cross-section; Figure 3 This is a magnified schematic diagram of the two-component microcapsule structure; In the diagram: 1-Packaging bag, 11-Dry cavity, 12-Wet cavity, 13-Isolation strip, 2-Wet wipe substrate, 3-Nursing solution, 4-Two-component microcapsule, 41-Outer capsule wall, 42-First capsule core, 421-First capsule core wall, 422-Heating agent, 43-Second capsule core, 431-Second capsule core wall, 432-Activator. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0019] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0020] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0021] A specific embodiment of the present invention, namely a heat-generating wet wipe based on a two-component microcapsule and the wet wipe substrate thereof, is as follows: Figure 1-3 As shown, the heated wipes based on two-component microcapsules include a packaging bag 1, which includes a dry cavity 11 and a wet cavity 12 that are sealed separately. The dry cavity 11 and the wet cavity 12 are separated by a fragile isolation strip 13. The isolation strip 13 can be processed using heat-sealing molding technology in the prior art. The dry cavity 11 contains a wipe substrate 2, which is made of common materials such as non-woven fabric or wet-strength paper. The wet cavity 12 contains a care solution 3, which includes moisturizers, antibacterial agents, and skin-soothing ingredients. By squeezing the wet cavity 12, the care solution 3 can pass through the isolation strip 13 and enter the dry cavity 11.

[0022] The microcapsule coating is applied to the wet wipe substrate 2 via spraying or roller coating. It adheres to the surface of the wet wipe substrate 2 and includes multiple bicomponent microcapsules 4. Each bicomponent microcapsule 4 includes an outer capsule wall 41, within which a first capsule core 42 and a second capsule core 43 are disposed. The first capsule core 42 includes a first capsule core wall 421 and a heating agent 422 encapsulated within the first capsule core wall 421. The second capsule core 43 includes a second capsule core wall 431 and an activator 432 encapsulated within the second capsule core wall 431. In this embodiment, the heating agent 422 is a solid heating agent 422, and the activator 432 is a liquid activator 432. When the wet wipe substrate 2 is rubbed, the first and second capsule core walls may rupture, allowing the heating agent 422 and the activator 432 to mix and release heat. In this embodiment, the outer capsule wall 41 and the first and second capsule core walls can all be made of materials that are easily broken by rubbing, such as sodium alginate. Since the outer capsule wall 41 can also break, the heating agent 422 and the activator 432 must be selected as non-toxic, odorless, harmless to the human body, and not easily react with the care agent to produce harmful effects.

[0023] In other embodiments, to prevent the activator 432 and the heating agent 422 from contacting the care solution 3, the outer capsule wall 41 is made of a flexible and unbreakable material. When the outer capsule wall 41 is made of a flexible and unbreakable material, the outer capsule wall 41 does not break during rubbing; only the inner first and second capsule core walls break and mix to release heat. The heat is transferred to the wet wipe through the outer capsule wall 41. Since the outer capsule wall 41 does not break, the heating agent 422 and the activator 432 in the first and second capsule cores will not come into contact with the care solution 3. This avoids contaminating the care solution 3 and prevents the care solution 3 from diluting the heating agent 422 or the activator 432, which would hinder the exothermic reaction and result in insufficient heat release. Moreover, since the outer capsule wall 41 cannot break, it is not necessary to select high-cost materials with particularly high environmental protection levels for the activator 432 and the heating agent 422, thereby reducing costs to a certain extent.

[0024] In this embodiment, the heating agent 422 is composed of at least one of anhydrous calcium carbonate and calcium bicarbonate, and the activator 432 is composed of at least one of citric acid aqueous solution, lactic acid aqueous solution, and tartaric acid aqueous solution. The first and second capsule core walls are composed of at least one of sodium alginate, gelatin, and starch. The particle size of the bicomponent microcapsule 4 is 0.1-1000 μm, and the thickness of the outer capsule wall 41 is 0.01-200 μm.

[0025] When using the heated wipe based on the two-component microcapsule 4, the wet cavity 12 is squeezed, and the pressure of the care liquid 3 breaks through the isolation strip 13 to enter the dry cavity 11, thereby wetting the wipe substrate 2. By rubbing the wipe substrate 2, the walls of the first capsule core 42 and the second capsule core 43 of the two-component microcapsule 4 are ruptured to release the heating agent 422 and the activator 432 inside. After the two are mixed, they react to release heat, thereby heating the wipe. Moreover, when the wipe is rubbed with different force or for different lengths, the number of microcapsules ruptured is different, and the amount of heat released is also different. This allows the temperature of the wipe to be changed or the heating time of the wipe to be adjusted, so as to improve the comfort of use in cold regions or seasons.

[0026] The two-component microcapsules are manufactured using Chinese patent technology with patent number CN2021115375791 and related patents.

[0027] In this application, the wet wipe substrate 2 and the wet wipe care liquid 3 are stored separately. When in use, the wet wipe care liquid 3 is broken through the adhesive point by a certain external force and flows into the wet wipe substrate 2. After being fully moistened, the wet wipe is gently rubbed. The microcapsule wall material attached to the wet wipe substrate 2 is broken due to external force factors such as friction and rubbing, so that the solid heating agent 422 and liquid activator 432 in the core material are released and react to release heat (the user can break different numbers of microcapsules by controlling the strength and number of rubbing, thereby achieving preliminary control of the heating temperature and duration). After the wet wipe has reached a certain temperature, the user can take out the wet wipe for use.

[0028] A specific embodiment of the wet wipe substrate of this application: The wet wipe substrate 2 is made of common wet wipe raw materials such as non-woven fabric or wet strength paper, but its surface is coated with the two-component microcapsules 4 described above for the heat-generating wet wipe, so that the wet wipe substrate 2 can release heat when it is rubbed.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. Heated wipes based on two-component microcapsules, comprising: The packaging bag includes a separately sealed dry chamber and a wet chamber, which are separated by a tear-resistant insulating strip. The dry chamber contains a wet wipe substrate, and the wet chamber contains a care solution. By squeezing the wet chamber, the care solution can pass through the insulating strip and enter the dry chamber. Its characteristic is that it further includes: Microcapsule coating, coated on a wet wipe substrate, includes multiple two-component microcapsules. Each two-component microcapsule includes an outer capsule wall, and a first capsule core and a second capsule core are disposed inside the outer capsule wall. The first capsule core includes a first capsule core wall and a heating agent encapsulated within the first capsule core wall. The second capsule core includes a second capsule core wall and an activator encapsulated within the second capsule core wall. When the wet wipe substrate is rubbed, the first and second core walls can rupture, allowing the heating agent and activator to mix and release heat.

2. The heated wipe based on two-component microcapsules according to claim 1, characterized in that, The outer capsule wall is made of a flexible and unbreakable material.

3. The heated wipe based on two-component microcapsules according to claim 1, characterized in that, The heating agent consists of at least one of anhydrous calcium carbonate and calcium bicarbonate, and the activator consists of at least one of aqueous citric acid solution, aqueous lactic acid solution, and aqueous tartaric acid solution.

4. The heated wipe based on two-component microcapsules according to claim 1, characterized in that, The first and second capsule walls are composed of at least one of sodium alginate, gelatin, and starch.

5. The heated wipe based on two-component microcapsules according to claim 1, characterized in that, The two-component microcapsules have a particle size of 0.1-1000 μm and an outer capsule wall thickness of 0.01-200 μm.

6. A wet wipe substrate, characterized in that, The invention includes a substrate body and a two-component microcapsule coated on the substrate body. The two-component microcapsule includes an outer capsule wall, and a first capsule core and a second capsule core are disposed inside the outer capsule wall. The first capsule core includes a first capsule core wall and a heating agent wrapped in the first capsule core wall. The second capsule core includes a second capsule core wall and an activator wrapped in the second capsule core wall. When the wet wipe substrate is rubbed, the first and second core walls can rupture, allowing the heating agent and activator to mix and release heat.

7. The wet wipe substrate according to claim 6, characterized in that, The outer capsule wall is made of a flexible and unbreakable material.

8. The wet wipe substrate according to claim 6, characterized in that, The heating agent consists of at least one of anhydrous calcium carbonate and calcium bicarbonate, and the activator consists of at least one of aqueous citric acid solution, aqueous lactic acid solution, and aqueous tartaric acid solution.

9. The wet wipe substrate according to claim 6, characterized in that, The first and second capsule walls are composed of at least one of sodium alginate, gelatin, and starch.

10. The wet wipe substrate according to claim 6, characterized in that, The two-component microcapsules have a particle size of 0.1-1000 μm and an outer capsule wall thickness of 0.01-200 μm.

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