CN118806676A - A paper towel with refreshing and nasal clearing functions and preparation method thereof - Google Patents

Abstract

The application relates to the field of daily chemicals, and discloses a tissue with a function of refreshing and relieving stuffy nose, which comprises the following multilayer structures: an outer layer: contains moisturizing components including aloe vera extract, glycerin and vitamin E; an intermediate layer: comprises microcapsule-coated compound essential oil and Chinese herbal medicine extract, wherein the compound essential oil comprises peppermint oil, eucalyptus oil and lemon oil, and the Chinese herbal medicine extract comprises menthol, camphor and ginkgo extract. The tissue comprises the outer layer, the middle layer and the inner layer, through the multilayer structure design, the functions of each layer are obvious, the tissue can not only moisturize and protect skin, but also effectively adsorb and slowly release essential oil and Chinese herbal medicine extracts, and meanwhile, the stability and release control of the active ingredients are obviously improved through preparing the composite essential oil and the Chinese herbal medicine extracts into microcapsules for encapsulation. The microcapsule technology can protect essential oil and Chinese herbal medicine extract, prevent the extract from volatilizing too fast during storage and use, and maintain the activity and efficacy.

Description

A paper towel with refreshing and nasal clearing functions and preparation method thereof

Technical Field

The invention relates to the technical field of daily chemicals, in particular to a paper towel with the function of refreshing the mind and clearing the nose and a preparation method thereof.

Background Art

Paper towel products currently on the market are mainly used for daily cleaning and care. However, with the improvement of people's living standards and the enhancement of health awareness, single-function paper towels can no longer meet the diverse needs of users. Especially when dealing with daily discomforts such as fatigue and nasal congestion, existing paper towel products have the following shortcomings:

Single function: The main functions of traditional paper towel products are cleaning and water absorption, lacking additional health and care functions. When users need a refreshing and nasal effect, they often need to use additional drugs or sprays, and the use of these additional products not only increases costs, but also brings inconvenience in use.

Active ingredients evaporate quickly and the effect is short-lived: Some tissues containing essential oils or Chinese herbal ingredients have appeared on the market, aiming to provide a refreshing and nasal clearing effect. However, since these active ingredients evaporate easily, the effect is often not long-lasting, and the refreshing and nasal clearing effect during use is very short-lived, which cannot meet the needs of long-term use.

Irritation and allergy risks: Although some tissue products contain essential oils or Chinese herbal extracts, these ingredients are directly exposed to the outer layer, which may irritate the skin or even cause allergic reactions when used. In addition, the concentration of active ingredients in direct contact is difficult to control, which can easily lead to excessive use and increase health risks.

Lack of intelligent release mechanism: Existing functional tissues lack intelligent and precise control in the release of active ingredients. Traditional release methods are usually through simple contact or friction, but this method cannot guarantee stability in different usage environments and temperatures, and cannot meet the needs of users in different situations.

Limited water absorption performance: Although many existing paper towels have certain water absorption performance, in actual use, especially when facing large amounts of liquid, paper towels are easily soaked and damaged, and cannot remain dry and comfortable, affecting the user experience.

Therefore, the present invention proposes a paper towel with refreshing and nasal clearing functions and a preparation method thereof to solve the deficiencies of the prior art.

Summary of the invention

In view of the deficiencies of the prior art, the present invention provides a paper towel with the function of refreshing and clearing the nose and a preparation method thereof, which not only significantly improves the refreshing and clearing the nose function and durability of the paper towel, but also greatly improves the comfort and user experience during use, and has significant technological progress and practical application value. This innovative paper towel product can effectively solve the deficiencies in the prior art and provide users with a more comfortable and efficient refreshing and clearing the nose solution.

To achieve the above objectives, the present invention is implemented through the following technical solutions: a paper towel with refreshing and nasal function, the paper towel comprises the following multi-layer structure:

Outer layer: Contains moisturizing ingredients including aloe vera extract, glycerin and vitamin E;

The middle layer contains composite essential oil and Chinese herbal extract wrapped in microcapsules, wherein the composite essential oil includes peppermint oil, eucalyptus oil and lemon oil, and the Chinese herbal extract includes menthol, camphor and ginkgo extract;

Inner layer: plant fiber with high water absorption.

Preferably, the moisturizing components in the outer layer are specifically 0.1% to 1% of aloe extract, 0.1% to 1% of glycerin, and 0.05% to 0.5% of vitamin E, measured by weight percentage.

Preferably, the composite essential oil in the middle layer is specifically 0.5% to 2% by weight of peppermint oil, 0.1% to 1% by weight of eucalyptus oil, and 0.1% to 1% by weight of lemon oil.

Preferably, the Chinese herbal extracts are calculated by weight as follows: menthol is 0.1% to 1%, camphor is 0.05% to 0.5%, and ginkgo extract is 0.1% to 1%.

Preferably, the microcapsules in the intermediate layer are prepared by a spray drying method, which specifically comprises the following steps:

Mix the compound essential oil and the Chinese herbal extract evenly;

The mixed liquid is sprayed into the drying tower through a nozzle, and formed into tiny capsule particles under the action of hot air;

The microcapsule particles were collected and stored in a sealed container.

Preferably, the surface of the outer layer is coated with a layer of essential oil solution, which includes peppermint oil, eucalyptus oil and lemon oil, specifically, by weight percentage: peppermint oil is 0.5% to 1.5%, eucalyptus oil is 0.2% to 0.8%, and lemon oil is 0.1% to 0.5%.

Preferably, a thermosensitive polymer is added to the middle layer to release the composite essential oil and Chinese herbal medicine extract when in contact with human body temperature, and the weight percentage of the thermosensitive polymer is 0.1% to 1%.

Preferably, a method for preparing a paper towel having the function of refreshing and clearing the nose comprises the following steps:

(1) Pulp preparation: preparing outer layer pulp, middle layer pulp and inner layer pulp respectively;

Outer pulp: Add aloe vera extract, glycerin and vitamin E to the pulp and stir well;

Middle layer pulp: Add microcapsulated composite essential oil and Chinese herbal extract, as well as thermosensitive polymer into the pulp and stir evenly;

Inner pulp: Highly absorbent plant fibers are added to the pulp.

(2) Papermaking: The outer layer pulp, the middle layer pulp and the inner layer pulp are sequentially subjected to the papermaking process to be pressed into a multi-layer tissue paper;

(3) Drying: Drying the paper towel after papermaking;

(4) coating: coating the quick-acting essential oil solution on the surface of the dried outer paper towel;

(5) Cutting and packaging: Cut the dried coated paper towel into specified sizes and seal them.

Preferably, the preparation steps of the microcapsules specifically include:

(a) mixing the composite essential oil and the Chinese herbal medicine extract uniformly;

(b) spraying the mixed liquid into a drying tower through a nozzle in a mist form to form tiny capsule particles under the action of hot air;

(c) Collect the microcapsule particles and store them in a sealed container.

Preferably, the highly water-absorbent plant fiber is selected from one or more of the following: bamboo fiber, cotton fiber, and wood pulp fiber.

The present invention provides a paper towel with refreshing and nasal clearing functions and a preparation method thereof. It has the following beneficial effects:

1. The paper towel of the present invention includes an outer layer, a middle layer and an inner layer. Through this multi-layer structural design, each layer has distinct functions, which can not only moisturize the skin, but also effectively absorb and slowly release essential oils and Chinese herbal extracts. The outer layer contains moisturizing ingredients, such as aloe extract, glycerin and vitamin E, which can moisturize the skin during use to avoid dryness and irritation; the middle layer contains microcapsule-wrapped composite essential oils and Chinese herbal extracts, which can continuously release effective ingredients and maintain the effect of refreshing and clearing the nose; the inner layer uses highly absorbent plant fibers, such as bamboo fibers, cotton fibers and wood pulp fibers, to ensure that the paper towel has good water absorption performance. Through this structural design, the technical effect of continuously providing a refreshing and clearing the nose effect during use is achieved, which improves the user experience.

2. The present invention significantly improves the stability and release control of these active ingredients by preparing the composite essential oil and Chinese herbal extract into microcapsules. Microcapsule technology can protect the essential oil and Chinese herbal extract, preventing them from volatilizing too quickly during storage and use, thereby maintaining their activity and efficacy. This encapsulation technology not only prolongs the durability of the refreshing and nasal function, but also enables the paper towel to gradually release the active ingredients when used, providing a continuous refreshing and nasal effect, avoiding the problem of fast volatilization of active ingredients and short-term effects in traditional paper towels.

3. The present invention adds a thermosensitive polymer to the middle layer, which can release the composite essential oil and Chinese herbal medicine extract when it comes into contact with human body temperature. The thermosensitive polymer is stable at room temperature, and will undergo physical or chemical changes when it comes into contact with human body temperature, resulting in the release of the encapsulated effective ingredients. Through this intelligent sensing release technology, it is ensured that the paper towel can release the effective ingredients in time when used, providing an immediate refreshing and nasal clearing effect, significantly improving the user experience. The application of thermosensitive polymers solves the problem of the unstable effect of traditional paper towels under changes in ambient temperature, making the refreshing and nasal clearing function more intelligent and humane.

4. The present invention applies a layer of quick-acting essential oil solution on the surface of the outer paper towel. This design enables the paper towel to quickly release the essential oil components when it contacts the skin, providing an immediate refreshing and nasal effect. The quick-acting essential oil solution includes peppermint oil, eucalyptus oil and lemon oil, which can evaporate quickly and stimulate the nasal cavity and nervous system, producing a fresh and refreshing feeling. Through this coating technology, the user experience is further improved, and the user's demand for quick results is met.

5. The inner layer of the present invention adopts highly absorbent plant fibers, such as bamboo fibers, cotton fibers and wood pulp fibers, which have excellent water absorption properties and can quickly absorb liquids and keep the paper towel dry and comfortable. The highly absorbent inner layer not only improves the practicality of the paper towel, but also solves the shortcomings of traditional paper towels in water absorption performance, so that the paper towel always remains dry during use and prevents discomfort caused by moisture.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a flow chart of a method for preparing a paper towel having the function of refreshing and clearing the nose.

DETAILED DESCRIPTION

The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Example:

Please refer to Figure 1:

Example 1: Preparation of basic moisturizing and refreshing nasal tissue

Implementation steps:

Outer Pulp Preparation:

Add 0.5% aloe vera extract, 0.5% glycerin and 0.1% vitamin E to the pulp and stir well.

Middle layer pulp preparation:

1% peppermint oil, 0.5% eucalyptus oil, 0.2% lemon oil, 0.5% menthol, 0.1% camphor and 0.5% ginkgo extract are mixed evenly to prepare microcapsules, and the microcapsules are evenly dispersed in paper pulp.

Inner Pulp Preparation:

Add 30% bamboo fiber to the pulp and stir well.

Papermaking:

The outer layer pulp, the middle layer pulp and the inner layer pulp are sequentially subjected to the papermaking process and pressed into a multi-layer tissue.

dry:

The paper towel after papermaking is dried in a dryer.

Coating:

A solution of 0.8% peppermint oil, 0.4% eucalyptus oil and 0.2% lemon oil was applied on the surface of the dried outer paper towel.

Cutting and Packing:

The dried paper towels are cut into specified sizes and sealed in packages.

Summarize:

This embodiment demonstrates the preparation of a basic moisturizing and refreshing nasal tissue. Through the multi-layer structure design and the application of composite essential oils and Chinese herbal medicine extracts, a sustained refreshing nasal effect is achieved, and the moisturizing performance is good, which is suitable for daily use.

Example 2: Smart induction paper towel with added thermosensitive polymer

Implementation steps:

Outer Pulp Preparation:

Add 0.7% aloe vera extract, 0.5% glycerin and 0.2% vitamin E to the pulp and stir well.

Middle layer pulp preparation:

1% peppermint oil, 0.3% eucalyptus oil, 0.3% lemon oil, 0.3% menthol, 0.2% camphor and 0.3% ginkgo extract were mixed evenly to prepare microcapsules. The microcapsules and 0.5% thermosensitive polymer were evenly dispersed in paper pulp.

Inner Pulp Preparation:

Add 25% cotton fiber to the pulp and stir well.

Papermaking:

The outer layer pulp, the middle layer pulp and the inner layer pulp are sequentially subjected to the papermaking process and pressed into a multi-layer tissue.

dry:

The paper towel after papermaking is dried in a dryer.

Coating:

A solution of 1% peppermint oil, 0.5% eucalyptus oil and 0.3% lemon oil was applied on the surface of the dried outer paper towel.

Cutting and Packing:

The dried paper towels are cut into specified sizes and sealed in packages.

Summarize:

This embodiment demonstrates a smart induction paper towel with added thermosensitive polymers. Through the application of thermosensitive polymers, the refreshing and nasal-clearing ingredients are intelligently released when in contact with human body temperature, providing instant effects and significantly improving the user experience.

Example 3: Highly absorbent refreshing nasal tissue

Implementation steps:

Outer Pulp Preparation:

Add 0.6% aloe vera extract, 0.4% glycerin and 0.15% vitamin E to the pulp and stir well.

Middle layer pulp preparation:

1.5% of peppermint oil, 0.4% of eucalyptus oil, 0.2% of lemon oil, 0.6% of menthol, 0.3% of camphor and 0.4% of ginkgo extract are mixed evenly to prepare microcapsules, and the microcapsules are evenly dispersed in paper pulp.

Inner Pulp Preparation:

Add 35% wood pulp fiber to the pulp and stir evenly.

Papermaking:

The outer layer pulp, the middle layer pulp and the inner layer pulp are sequentially subjected to the papermaking process and pressed into a multi-layer tissue.

dry:

The paper towel after papermaking is dried in a dryer.

Coating:

A solution of 0.7% peppermint oil, 0.3% eucalyptus oil and 0.2% lemon oil was applied on the surface of the dried outer paper towel.

Cutting and Packing:

The dried paper towels are cut into specified sizes and sealed in packages.

Summarize:

This embodiment shows a highly absorbent refreshing nasal tissue, which uses highly absorbent wood pulp fibers to ensure that the tissue always remains dry during use and provides a lasting refreshing nasal effect.

Example 4: Quick-acting moisturizing and refreshing tissue

Implementation steps:

Outer Pulp Preparation:

Add 0.8% aloe vera extract, 0.6% glycerin and 0.25% vitamin E to the pulp and stir well.

Middle layer pulp preparation:

0.8% of peppermint oil, 0.3% of eucalyptus oil, 0.2% of lemon oil, 0.4% of menthol, 0.15% of camphor and 0.3% of ginkgo extract are mixed evenly to prepare microcapsules, and the microcapsules are evenly dispersed in paper pulp.

Inner Pulp Preparation:

Add 30% of the mixture of bamboo fiber and cotton fiber to the pulp and stir well.

Papermaking:

The outer layer pulp, the middle layer pulp and the inner layer pulp are sequentially subjected to the papermaking process and pressed into a multi-layer tissue.

dry:

The paper towel after papermaking is dried in a dryer.

Coating:

A solution of 1.2% peppermint oil, 0.6% eucalyptus oil and 0.3% lemon oil was applied on the surface of the dried outer paper towel.

Cutting and Packing:

The dried paper towels are cut into specified sizes and sealed in packages.

Summarize:

This embodiment shows a quick-acting moisturizing and refreshing paper towel, which provides instant moisturizing and refreshing nasal clearing effects through the high-concentration moisturizing ingredients and quick-acting essential oil solution on the outer layer, and is suitable for occasions where quick results are required.

Example 5: Gentle, moisturizing and long-lasting refreshing tissue

Implementation steps:

Outer Pulp Preparation:

Add 0.4% aloe vera extract, 0.2% glycerin and 0.1% vitamin E to the pulp and stir well.

Middle layer pulp preparation:

1% peppermint oil, 0.3% eucalyptus oil, 0.3% lemon oil, 0.5% menthol, 0.2% camphor and 0.4% ginkgo extract were mixed evenly to prepare microcapsules, and the microcapsules and 0.3% thermosensitive polymer were evenly dispersed in paper pulp.

Inner Pulp Preparation:

Add a mixture of 20% bamboo fiber and 20% wood pulp fiber to the pulp and stir well.

Papermaking:

The outer layer pulp, the middle layer pulp and the inner layer pulp are sequentially subjected to the papermaking process and pressed into a multi-layer tissue.

dry:

The paper towel after papermaking is dried in a dryer.

Coating:

A solution of 0.5% peppermint oil, 0.2% eucalyptus oil and 0.1% lemon oil was applied on the surface of the dried outer paper towel.

Cutting and Packing:

The dried paper towels are cut into specified sizes and sealed in packages.

Summarize:

This embodiment demonstrates a mild moisturizing and long-lasting refreshing tissue, which provides mild and continuous moisturizing and refreshing nasal clearing effects through relatively low concentrations of moisturizing ingredients and long-lasting thermosensitive polymer microcapsules, and is suitable for long-term use.

Summary of the embodiments:

Through the above five embodiments, it can be seen that the paper towel of the present invention has significant advantages in terms of multi-layer structure design, stability of active ingredients, intelligent induction release, and combination of rapid and long-term effects. Each embodiment provides a specific solution for different usage needs and scenarios, fully demonstrating the flexibility and wide applicability of the present invention. In general, the present invention not only significantly improves the refreshing and nasal clearing function and durability of the paper towel, but also greatly improves the comfort and user experience during use, providing users with a more comfortable and efficient refreshing and nasal clearing solution.

Comparative experimental design:

Experiment 1: Comparative experiment on refreshing and nasal clearing effects and durability

Objective: To compare the differences between the present invention and the prior art in terms of refreshing and nasal clearing effects and durability.

Existing technical solutions:

The paper towels in the prior art are generally prepared by directly adding essential oils or Chinese herbal extracts onto the paper towels. These active ingredients are easily volatilized and released unevenly, resulting in a short-lived and unstable refreshing and nasal effect.

Paper towel formula of prior art:

Outer layer: conventional pulp, no special additives.

Middle layer: directly apply 1% peppermint oil and 0.5% eucalyptus oil.

Inner layer: ordinary pulp, no special additives.

The technical solution of the present invention:

The paper towel of the present invention is designed with a multi-layer structure and adopts microcapsule packaging technology and thermosensitive polymers, so as to achieve a continuous and stable refreshing and nasal clearing effect.

The paper towel formula of the present invention is:

Outer layer: Contains moisturizing ingredients including 0.5% aloe vera extract, 0.5% glycerin and 0.1% vitamin E.

The middle layer contains microcapsule-encapsulated composite essential oils (1% peppermint oil, 0.5% eucalyptus oil, 0.2% lemon oil) and Chinese herbal extracts (0.5% menthol, 0.1% camphor, 0.5% ginkgo extract), and 0.5% thermosensitive polymer.

Inner layer: Highly absorbent plant fiber (30% bamboo fiber).

Experimental steps:

Experimental subjects: 20 volunteers were divided into two groups, with 10 people in each group, and used the paper towel of the prior art and the paper towel of the present invention respectively.

Experimental time: Use the paper towels at 9 am and 3 pm every day, and record the duration and intensity of the refreshing and nasal clearing effect after each use.

Recording parameters: initial intensity of the refreshing and nasal clearing effect (0-10 points), duration (minutes), and comfort score after use (0-10 points).

Experimental data table:

Data Analysis:

The initial intensity of the refreshing and nasal clearing effect: the average score of the group of the present invention is 8.5, and the average score of the group of the prior art is 6, which is significantly higher.

Duration: The average duration of the invention group was 64.1 minutes, while that of the prior art group was 30.2 minutes, which was significantly longer.

Comfort rating after use: The average rating of the present invention group was 8.6, while the average rating of the prior art group was 5.1, which was significantly higher.

in conclusion:

The experimental results show that the paper towel of the present invention is superior to the prior art in terms of the initial intensity, duration and comfort after use of the refreshing and nasal clearing effect, which reflects the significant beneficial effects of the present invention.

Comparative experimental design:

Experiment 2: Comparative experiment on water absorption of paper towels and skin moisturizing effect

Objective: To compare the differences between the present invention and the prior art in terms of water absorption and skin moisturizing effect.

Existing technical solutions:

The paper towels in the prior art usually do not focus on water absorption and skin moisturizing effects, and the main component is ordinary paper pulp, lacking special water absorption and moisturizing designs.

Paper towel formula of prior art:

Outer layer: conventional pulp, no special additives.

Middle layer: ordinary pulp, no special additives.

Inner layer: ordinary pulp, no special additives.

The technical solution of the present invention:

The paper towel of the present invention improves water absorption and skin moisturizing effect by adding moisturizing ingredients to the outer layer and using highly water-absorbent plant fibers in the inner layer.

The paper towel formula of the present invention is:

Outer layer: Contains moisturizing ingredients including 0.5% aloe vera extract, 0.5% glycerin and 0.1% vitamin E.

The middle layer contains microcapsule-encapsulated composite essential oils (1% peppermint oil, 0.5% eucalyptus oil, 0.2% lemon oil) and Chinese herbal extracts (0.5% menthol, 0.1% camphor, 0.5% ginkgo extract), and 0.5% thermosensitive polymer.

Inner layer: Highly absorbent plant fiber (30% bamboo fiber).

Experimental steps:

Experimental subjects: 10 paper towels, from two groups of the prior art and the present invention respectively.

Experimental parameters:

Water absorption: measure the amount of water absorbed by each paper towel (ml/g).

Moisturizing effect: The change in skin moisture content (%) was measured after use on the skin.

Experimental methods:

Water absorption test: Soak each paper towel in water for 30 seconds, take it out and weigh it, and calculate the water absorption.

Moisturizing effect test: Use paper towels on the back of volunteers' hands and measure skin moisture content before and 30 minutes after use.

Experimental data table:

Data Analysis:

Water absorption: The average water absorption of the group of the present invention is 5.74 ml/g, and the average water absorption of the group of the prior art is 3.12 ml/g, which is significantly higher.

Skin moisturizing effect: The skin moisture content of the group of the present invention increased by an average of 9%, and that of the prior art group increased by an average of 3%, and the group of the present invention increased significantly.

in conclusion:

The experimental results show that the paper towel of the present invention is superior to the prior art in terms of water absorption and skin moisturizing effect, which reflects the significant beneficial effects of the present invention.

Summary:

Through these two comparative experiments, it can be seen that the paper towel of the present invention is significantly superior to the prior art in terms of refreshing and nasal clearing effect, durability, water absorption and skin moisturizing effect. Specifically, it is as follows:

Refreshing and nasal clearing effect: The paper towel of the present invention has higher initial strength and longer duration.

Comfort: The tissues of the present invention scored significantly higher in comfort after use.

Water absorption: The paper towel of the present invention absorbs more water and can better keep the paper towel dry.

Moisturizing effect: The paper towel of the present invention can significantly increase the moisture content of the skin and provide a better moisturizing effect.

These results fully demonstrate the technical advantages and innovation of the present invention, providing users with a more efficient and comfortable solution for refreshing the nose and clearing the nose.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A paper towel with refreshing and nasal function, characterized in that the paper towel comprises the following multi-layer structure: Outer layer: Contains moisturizing ingredients including aloe vera extract, glycerin and vitamin E; The middle layer contains composite essential oil and Chinese herbal extract wrapped in microcapsules, wherein the composite essential oil includes peppermint oil, eucalyptus oil and lemon oil, and the Chinese herbal extract includes menthol, camphor and ginkgo extract; Inner layer: plant fiber with high water absorption. 2. A tissue with refreshing and nasal clearing functions according to claim 1, characterized in that the moisturizing components in the outer layer are, by weight percentage, specifically: 0.1% to 1% aloe vera extract, 0.1% to 1% glycerol, and 0.05% to 0.5% vitamin E. 3. A tissue with refreshing and nasal clearing functions according to claim 1, characterized in that the composite essential oil in the middle layer is specifically 0.5% to 2% peppermint oil, 0.1% to 1% eucalyptus oil, and 0.1% to 1% lemon oil by weight percentage. 4. A paper towel with refreshing and nasal clearing functions according to claim 1, characterized in that the Chinese herbal extracts are calculated by weight percentage as follows: menthol is 0.1% to 1%, camphor is 0.05% to 0.5%, and ginkgo extract is 0.1% to 1%. 5. The paper towel with refreshing and nasal clearing function according to claim 1, characterized in that the microcapsules in the middle layer are prepared by a spray drying method, specifically comprising the following steps: Mix the compound essential oil and the Chinese herbal extract evenly; The mixed liquid is sprayed into the drying tower through a nozzle, and formed into tiny capsule particles under the action of hot air; The microcapsule particles were collected and stored in a sealed container. 6. A tissue with refreshing and nasal clearing functions according to claim 1, characterized in that the surface of the outer layer is coated with a layer of essential oil solution, the essential oil solution comprises peppermint oil, eucalyptus oil and lemon oil, and the percentage by weight is specifically: peppermint oil is 0.5% to 1.5%, eucalyptus oil is 0.2% to 0.8%, and lemon oil is 0.1% to 0.5%. 7. A paper towel with refreshing and nasal clearing functions according to claim 1, characterized in that a thermosensitive polymer is added to the middle layer to release the composite essential oil and Chinese herbal medicine extract when in contact with human body temperature, and the weight percentage of the thermosensitive polymer is 0.1% to 1%. 8. A method for preparing the paper towel having the function of refreshing the mind and clearing the nose as claimed in any one of claims 1 to 7, characterized in that it comprises the following steps: (1) Pulp preparation: preparing outer layer pulp, middle layer pulp and inner layer pulp respectively; Outer pulp: Add aloe vera extract, glycerin and vitamin E to the pulp and stir well; Middle layer pulp: Add microcapsulated composite essential oil and Chinese herbal extract, as well as thermosensitive polymer into the pulp and stir evenly; Inner pulp: Add highly absorbent plant fibers to the pulp; (2) Papermaking: The outer layer pulp, the middle layer pulp and the inner layer pulp are sequentially subjected to the papermaking process to be pressed into a multi-layer tissue paper; (3) Drying: Drying the paper towel after papermaking; (4) coating: coating the quick-acting essential oil solution on the surface of the dried outer paper towel; (5) Cutting and packaging: Cut the dried coated paper towel into specified sizes and seal them. 9. The method for preparing a tissue with refreshing and nasal function according to claim 8, characterized in that the preparation steps of the microcapsules specifically include: (a) mixing the composite essential oil and the Chinese herbal medicine extract uniformly; (b) spraying the mixed liquid into a drying tower through a nozzle in a mist form to form tiny capsule particles under the action of hot air; (c) Collect the microcapsule particles and store them in a sealed container. 10. A paper towel according to any one of claims 1 to 7, characterized in that the highly water-absorbent plant fiber is selected from one or more of the following: bamboo fiber, cotton fiber, wood pulp fiber.