Dispersible plant antibacterial wet toilet paper and preparation method thereof

Abstract

The invention discloses a dispersible plant antibacterial wet toilet paper and a preparation method thereof, the dispersible plant antibacterial wet toilet paper comprises a dispersible non-woven fabric and a wet toilet paper feed liquid, and the dispersible non-woven fabric is made of imported raw wood pulp; the wet toilet paper material liquid is prepared from the following raw materials in percentage by weight: 1, 8-cineole, terpinen-4-ol, lactic acid, an auxiliary agent, a natural plant extract, a humectant, a preservative, a stabilizer, PEG-400, Australian tea tree essential oil, essence and RO (Reverse Osmosis) pure water. The plant antibacterial wet toilet paper disclosed by the invention not only has good dispersion performance and high wet strength, but also has the advantages of mildness, no irritation, safety in use, plant antibacterial property, moisture retention, skin moistening, quietness, elegance and faint scent; and moreover, the environment-friendly plastic can be completely biodegraded, so that the pollution to the environment can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of daily necessities, and in particular to flushable plant antibacterial wet toilet paper and a preparation method thereof. Background Art

[0002] As the use of these disposable sanitary products continues to increase, while they bring people a healthy and convenient life, they also bring many problems to waste disposal. Because they cannot pass through toilets and sewage treatment facilities smoothly like dry toilet paper, they will cause great pressure on garbage disposal and the environment. As people's living standards and environmental awareness improve, disposable sanitary products with "flushable" labels are gaining more and more attention due to their convenience and environmental protection.

[0003] Flushability means that after the product is used, the waste is thrown into the toilet and is easily dispersed and passed through the drainage pipes under the action of water flow. At the same time, after passing through the drainage pipe system, the original form of the waste is dispersed into an unrecognizable form and cannot be accumulated. After entering the septic tank, it has the performance of being degradable. During the whole process, the flush toilet and drainage pipe system are kept unobstructed and compatible with the existing sewage transportation, treatment, reuse and disposal systems. At present, the international implementation standards for flushable nonwoven products are mainly the "Guidelines for Evaluating the Flushability of Disposable Nonwoven Products" of the American Nonwovens Association (INDA) and the European Nonwovens Association (EDANA). In recent years, my country has also attached more and more importance to flushable materials and carried out research on relevant standards. At present, there are national standards "Test Method and Evaluation of Flushability of Disposable Sanitary Nonwoven Materials" (implemented) and "Flushable Spunlace Nonwoven Materials and Products" (published but not yet implemented). The former is a test method and evaluation method for the flushability of disposable sanitary nonwoven materials, and the latter is a comprehensive indicator requirement for spunlace flushable nonwoven materials and products. The flushability and wet strength of the product are contradictory. It is necessary to ensure that the product can be flushed in the toilet and pipes, that is, it has good flushability, and to ensure that the product has appropriate wet strength that does not affect the use, and the product must also have good biodegradability.

[0004] Currently, most flushable wet toilet paper products on the market have poor disinfection and sterilization effects, poor moisturizing and skin care effects, and have shortcomings such as exaggerated flushability, which leads to toilet blockage or insufficient strength in the wet state, and easy breakage during use. Summary of the invention

[0005] In view of the problems of the prior art, the purpose of the present invention is to provide a flushable plant antibacterial wet toilet paper and a preparation method thereof. The flushable wet toilet paper prepared by the present invention not only has good flushing performance and high wet strength, but also has moisturizing, moisturizing and plant antibacterial effects, thereby solving the problems of the existing wet toilet paper, such as poor flushability, easy breakage during use, poor antibacterial and moisturizing effects.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A flushable plant antibacterial wet toilet paper comprises a wet toilet paper stock liquid and a flushable non-woven fabric, wherein the wet toilet paper stock liquid is composed of the following raw materials: 1,8-cineole, terpinene-4-ol, lactic acid, an auxiliary agent, a natural plant extract, a moisturizer, a preservative, a stabilizer, PEG-400, Australian tea tree essential oil, essence and RO pure water.

[0008] Furthermore, the flushable plant antibacterial wet toilet paper comprises a flushable non-woven fabric and a wet toilet paper liquid, and the weight ratio of the flushable non-woven fabric to the wet toilet paper liquid is 1:2-3.

[0009] Furthermore, the wet toilet paper liquid is composed of the following raw materials in weight percentage: 0.05%-0.2% 1,8-cineole, 0.05%-0.2% terpinene-4-ol, 0.2%-0.6% lactic acid, 0.02%-0.04% adjuvant, 0.1%-0.3% natural plant extract, 2%-4% moisturizer, 0.1%-0.3% preservative, 0.3%-0.8% stabilizer, 0.01%-0.02% PEG-400, 0.1%-0.4% Australian tea tree essential oil, 0.01%-0.1% essence, and the balance is RO pure water.

[0010] Furthermore, the flushable non-woven fabric is a flushable spunlace non-woven fabric.

[0011] Furthermore, the Australian tea tree essential oil, lactic acid, 1,8-cineole and terpinene-4-ol are all of plant origin.

[0012] Preferably, the auxiliary agent comprises one or more of citric acid, lactic acid, and disodium ethylenediaminetetraacetate, and is a pH regulator in the wet toilet paper liquid.

[0013] Preferably, the natural plant extract comprises one or more of aloe extract, chamomile extract, wormwood extract, sophora flavescens extract, and cnidium monnieri extract.

[0014] Preferably, the moisturizing agent comprises one or more of propylene glycol, glycerin, hyaluronic acid and vitamin E.

[0015] Preferably, the stabilizer comprises one or more of hydrogenated castor oil and Tween-20.

[0016] The present invention also provides a method for preparing flushable plant antibacterial wet toilet paper, comprising the following steps:

[0017] (1) According to the raw material ratio of the wet toilet paper liquid, a certain amount of RO pure water is first added to a stirring kettle, and then the auxiliary agent described in the formula is added, and stirred until completely dissolved to obtain an aqueous solution;

[0018] (2) according to the raw material ratio of the wet toilet paper liquid, the natural plant extract, the moisturizer, the preservative, the stabilizer, PEG-400, the Australian tea tree essential oil, the lactic acid, the 1,8-cineole, the terpinene-4-ol, and the essence are dissolved in the aqueous solution in step (1) in sequence, and stirred until the mixture is uniformly mixed to obtain the wet toilet paper liquid;

[0019] (3) After the flushable non-woven fabric is cut, the toilet paper material liquid is evenly sprayed on the surface of the non-woven fabric. After a period of rest, the sprayed non-woven fabric is folded to obtain a multi-layer overlapping non-woven fabric;

[0020] (4) Packaging: Put the multi-layer overlapping non-woven fabric prepared in step (3) into a bag, seal it, and complete the packaging to obtain the flushable plant antibacterial wet toilet paper.

[0021] Preferably, the pH value of the aqueous solution in step (1) is 5-7.

[0022] Preferably, the stirring time in step (1) is 30 min; the stirring time in step (2) is 30 min; and the resting time in step (3) is 5 min.

[0023] The beneficial effects of the present invention are:

[0024] The present invention provides a flushable plant antibacterial wet toilet paper and a preparation method thereof. The wet toilet paper of the present invention is prepared from a flushable non-woven fabric and a wet toilet paper liquid in a specific proportion; the prepared wet toilet paper not only has good flushability and high wet strength, but also has the advantages of being mild and non-irritating, safe to use, plant antibacterial, moisturizing and emollient, and having a light and elegant fragrance.

[0025] The wet toilet paper prepared by the present invention can not only meet people's daily use but also can be quickly disintegrated into fiber flocs under the shear force of water flow, and can smoothly pass through toilets, urban drainage pipes, sewage transportation systems and the like. It is 100% biodegradable and can effectively reduce pollution to the environment.

[0026] The flushable nonwoven fabric in the wet toilet paper of the present invention is made of imported virgin wood pulp, and has both excellent flushability and good wet strength. At the same time, the weight ratio of the flushable nonwoven fabric to the wet toilet paper liquid is controlled to be 1:2-3, which ensures that the wet toilet paper is completely soaked and the wet strength of the wet toilet paper is ensured, and maintains a good use experience of the wet toilet paper.

[0027] The wet toilet paper stock liquid of the present invention has a reasonable ratio of each component so that the prepared wet toilet paper stock liquid can not only be fully absorbed by the flushable non-woven fabric, but also can ensure that the flushable non-woven fabric has a certain wet strength after absorption; at the same time, it is ensured that the wet toilet paper has antibacterial properties and is non-irritating to the skin. The wet toilet paper stock liquid of the present invention is prepared by 1,8 cineole, terpinene-4-ol, lactic acid, auxiliary agent, natural plant extract, moisturizer, preservative, stabilizer, PEG-400, Australian tea tree essential oil, and essence in a specific ratio; 1,8 cineole, terpinene-4-ol, lactic acid, and Australian tea tree essential oil have a synergistic bactericidal effect, so that the wet toilet paper of the present invention has excellent bactericidal effect and good use experience. The addition of 1,8 cineole and terpinene-4-ol can reduce the use amount of tea tree essential oil and reduce costs well, but at the same time, 1,8 cineole and terpinene-4-ol have a strong irritating odor, and their excessive addition will reduce the use experience of wet toilet paper. Natural plant extracts (such as aloe extract, chamomile extract, wormwood extract, sophora flavescens extract, and cnidium monnieri extract) are also added to the wet toilet paper liquid, which not only enhances the bactericidal performance of the wet toilet paper of the present invention, but also enhances the moisturizing and emollient effect of the wet toilet paper, reduces irritation, and has anti-inflammatory effect; at the same time, the wet toilet paper has a certain fragrance. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all 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.

[0029] Unless otherwise defined, all professional terms used hereinafter have the same meanings as those generally understood by those skilled in the art. The professional terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention; unless otherwise specifically stated, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0030] Examples 1-7

[0031] A flushable plant antibacterial wet toilet paper, comprising a flushable non-woven fabric and a wet toilet paper stock liquid, wherein the wet toilet paper stock liquid is composed of the following raw materials in weight percentage: 0.05%-0.2% 1,8-cineole, 0.05%-0.2% terpinene-4-ol, 0.2%-0.6% lactic acid, 0.02%-0.04% auxiliary agent, 0.1%-0.3% natural plant extract, 2%-4% moisturizer, 0.1%-0.3% preservative, 0.3%-0.8% stabilizer, 0.01%-0.02% PEG-400, 0.1%-0.4% Australian tea tree essential oil, 0.01%-0.1% essence, and the balance is RO pure water;

[0032] The flushable nonwoven fabric is a flushable spunlace nonwoven fabric; the weight ratio of the flushable spunlace nonwoven fabric to the wet toilet paper liquid is 1:2-3, preferably 1:2.5; when the weight ratio of the wet toilet paper liquid to the nonwoven fabric is too low, the wet toilet paper cannot be completely soaked; when the weight ratio of the wet toilet paper liquid to the nonwoven fabric is too high, its wet breaking strength is significantly reduced; and when the wet toilet paper is too dry or too wet, the overall use experience of the wet toilet paper will be affected;

[0033] The Australian tea tree essential oil, lactic acid, 1,8-cineole and terpinene-4-ol are all derived from plants, are natural, mild and non-irritating, and have good bactericidal effects;

[0034] The auxiliary agent is at least one of citric acid, lactic acid, and disodium ethylenediaminetetraacetate, preferably citric acid;

[0035] The natural plant extract is at least one of aloe extract, chamomile extract, wormwood extract, sophora flavescens extract, and cnidium monnieri extract; preferably aloe extract;

[0036] The moisturizing agent is at least one of propylene glycol, glycerin, hyaluronic acid, and vitamin E; preferably propylene glycol;

[0037] The stabilizer is at least one of hydrogenated castor oil and Tween-20; preferably hydrogenated castor oil;

[0038] The preparation method specifically comprises the following steps:

[0039] (1) According to the ratio of the wet toilet paper liquid raw materials, a certain amount of RO pure water is first added to a stirring kettle, and then the auxiliary agent described in the raw material formula is added, and stirred for 30 minutes until it is completely dissolved to obtain an aqueous solution; the pH value of the aqueous solution is 5-7;

[0040] (2) according to the ratio of the raw materials of the wet toilet paper liquid, natural plant extracts, moisturizers, preservatives, stabilizers, PEG-400, Australian tea tree essential oil, lactic acid, 1,8-cineole, terpinene-4-ol, and essence are dissolved in the aqueous solution in step (1), and stirred for 30 minutes until the mixture is uniformly mixed, thereby obtaining the wet toilet paper liquid;

[0041] (3) Cutting non-woven fabrics: Cut the disintegrable non-woven fabrics into sheets according to certain sizes;

[0042] (4) Spraying: spray the wet toilet paper liquid evenly on the surface of the non-woven fabric according to the weight ratio of the quantitative flushable non-woven fabric and the wet toilet paper liquid, and let it stand for 5 minutes;

[0043] (5) Folding: Fold the sprayed disintegrable nonwoven fabric into multiple overlapping layers in a certain folding manner;

[0044] (6) Packaging: Put the multi-layer overlapping non-woven fabrics obtained in step (5) into a bag, seal it, and complete the packaging to obtain the flushable plant antibacterial wet toilet paper.

[0045] The proportions of the raw material components in the flushable plant antibacterial wet toilet paper prepared in Examples 1-7 are shown in Table 1; Examples 1-7 correspond to E1-E7 respectively.

[0046] Table 1: Proportions of wet toilet paper components prepared in Examples 1-7 (E1-E7)

[0047]

[0048]

[0049] Comparative Examples 1-4

[0050] The proportions of the raw material components in the flushable plant antibacterial wet toilet paper prepared in Comparative Examples 1-4 are shown in Table 2; the preparation method is the same as that of the embodiment of the present invention; wherein Comparative Examples 1-4 correspond to D1-D4 respectively.

[0051] Table 2 Comparative Examples 1-4 (D1-D4) Wet toilet paper component ratios

[0052]

[0053]

[0054] Flushability and wet strength evaluation

[0055] The flushability and wet breaking strength of the wet toilet paper prepared in the embodiment of the present invention and some competing wet toilet papers (commercially available wet toilet papers) were tested. The flushability test refers to the shaking box decomposition experiment recorded in the national standard GB / T 40181-2021. The wet breaking strength test refers to the breaking strength test method recorded in the national standard GB / T 24218.3 to test the breaking strength of the wet toilet paper in a wet state. The test results are shown in Table 3.

[0056] Table 3 Test results of disintegration performance and breaking strength

[0057] Decomposition rate (%) Transverse rupture strength (N / 50mm) Longitudinal breaking strength (N / 50mm) Example 1 94 89.8 117.9 Example 2 95 90.6 117.1 Example 3 95 88.5 119.2 Competitor 1 85 86.1 110.6 Competitor 2 89 83.6 106.7 Competitor 3 91 80.6 111.4

[0058] According to the test results in Table 3, compared with the competing wet toilet paper (commercially available wet toilet paper), the wet toilet paper of Examples 1-3 of the present invention has a higher decomposition rate in the shaking box decomposition test, indicating that the wet toilet paper of Examples 1-3 of the present invention has better flushability. In addition, the transverse and longitudinal breaking strengths of the wet toilet paper of Examples 1-3 of the present invention are relatively high in the wet breaking strength test, indicating that the wet toilet paper of Examples 1-3 of the present invention has stronger wet strength.

[0059] Bactericidal performance evaluation

[0060] The bactericidal properties of the wet toilet paper in the embodiment of the present invention and the comparative example were tested, and the test method referred to the bactericidal test method recorded in Appendix C1-C3 of the national standard GB 15979-2002. The bactericidal properties of the wet toilet paper obtained in the embodiment and the comparative example against Escherichia coli, Staphylococcus aureus, and Candida albicans were tested respectively, and the test results are shown in Table 4.

[0061] Table 4 Bactericidal performance test results

[0062] Escherichia coli sterilization rate / % Staphylococcus aureus sterilization rate / % Candida albicans sterilization rate / % Example 1 ≥99.99 ≥99.99 ≥99.99 Example 2 ≥99.99 ≥99.99 ≥99.99 Example 3 ≥99.99 ≥99.99 ≥99.99 Example 4 ≥99.99 ≥99.99 ≥99.99 Example 5 ≥99.99 ≥99.99 ≥99.99 Example 6 ≥99.99 ≥99.99 ≥99.99 Example 7 ≥99.99 ≥99.99 ≥99.99 Comparative Example 1 ≥95.05 ≥93.34 ≥98.06 Comparative Example 2 ≥99.45 ≥99.08 ≥99.05 Comparative Example 3 ≥99.34 ≥98.65 ≥99.09 Comparative Example 4 ≥96.59 ≥90.92 ≥90.98

[0063] According to the test results in Table 4, the wet toilet paper prepared in Examples 1-7 of the present invention has a sterilization rate of Escherichia coli, Staphylococcus aureus and Candida albicans greater than 99.99%; the wet toilet paper prepared in Comparative Examples 1-4 has a sterilization rate of Escherichia coli, Staphylococcus aureus and Candida albicans lower than that in Example 1; it indicates that when a specific amount of 1,8-cineole, terpinene-4-ol, lactic acid, adjuvant, natural plant extract, humectant, preservative, stabilizer, PEG-400, Australian tea tree essential oil, essence and water are selected within the ratio range of the present invention to prepare wet toilet paper, the obtained wet toilet paper has excellent sterilization effect on Escherichia coli, Staphylococcus aureus and Candida albicans at the same time; and the specific ratio of 1,8-cineole, terpinene-4-ol, lactic acid and Australian tea tree essential oil does not produce antagonism in the sterilization effect but has a synergistic sterilization effect.

[0064] Skin irritation evaluation

[0065] The irritation of the wet toilet paper prepared in the embodiment of the present invention to the skin was tested. The irritation test referred to the "Technical Specification for Disinfection" 2002 edition, and an animal experiment was used to test the irritation of the wet toilet paper to the animal skin. The experimental animals were white rabbits, wherein the sample was the skin of the white rabbits applied with the wet toilet paper prepared in the embodiment of the present invention; the control was the skin of the white rabbits without hair removal and without the wet toilet paper prepared in the embodiment of the present invention applied; the animal experiment specifically observed the irritation reaction of the white rabbit skin and scored it, and the test results are shown in Table 5.

[0066] Table 5 Results of irritation test on intact skin of white rabbits

[0067]

[0068] According to the test results in Table 5, no erythema or edema was found on the skin of the test rabbits, indicating that the components of the wet toilet paper prepared by the present invention are all mild and non-irritating raw materials and are non-irritating to the intact skin of the test rabbits.

[0069] Evaluation of moisturizing and emollient properties

[0070] The moisturizing and emollient properties of the wet toilet paper prepared in the embodiment of the present invention were tested. The test method referred to the method of standard QB / T4256-2011 "Guidelines for the Evaluation of Moisturizing Efficacy of Cosmetics"; 50 volunteers who met the conditions were selected, including 30 females and 20 males; the wet toilet paper prepared in Example 1 of the present invention was used as a sample, and the moisture content of the stratum corneum of the skin of the volunteers was tested before using the sample and 1, 2, 3, 4, and 5 minutes after using the sample. Each time point was measured 3 times and the average value was taken. The test results are shown in Table 6.

[0071] Table 6 Changes in water content of the stratum corneum of the subjects' skin

[0072]

[0073] It can be seen from Table 6 that the water content of the stratum corneum of the skin slightly increases within 5 minutes of use of the wet toilet paper prepared in the embodiment of the present invention, and the water content of the stratum corneum of the skin basically does not change after 5 minutes of use, which shows that the wet toilet paper of the present invention has a certain moisturizing and skin-embellishing effect, and can avoid the discomfort such as dry and cracked skin caused by long-term use of wet toilet paper.

[0074] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A flushable plant antibacterial wet toilet paper, characterized in that: The invention comprises a flushable non-woven fabric and a wet toilet paper liquid, wherein the wet toilet paper liquid is composed of the following raw materials: 1,8-cineole, terpinene-4-ol, lactic acid, an auxiliary agent, a natural plant extract, a moisturizer, a preservative, a stabilizer, PEG-400, Australian tea tree essential oil, essence and RO pure water.

2. The flushable plant antibacterial wet toilet paper according to claim 1, characterized in that: The weight ratio of the flushable nonwoven fabric to the wet toilet paper stock liquid is 1:2-3.

3. The flushable plant antibacterial wet toilet paper according to claim 1, characterized in that: The wet toilet paper liquid is composed of the following raw materials in weight percentage: 0.05%-0.2% 1,8-cineole, 0.05%-0.2% terpinene-4-ol, 0.2%-0.6% lactic acid, 0.02%-0.04% auxiliary agent, 0.1%-0.3% natural plant extract, 2%-4% moisturizer, 0.1%-0.3% preservative, 0.3%-0.8% stabilizer, 0.01%-0.02% PEG-400, 0.1%-0.4% Australian tea tree essential oil, 0.01%-0.1% essence, and the balance is RO pure water.

4. The flushable plant antibacterial wet toilet paper according to claim 1, characterized in that: The auxiliary agent comprises one or more of citric acid and disodium ethylenediaminetetraacetate.

5. The flushable plant antibacterial wet toilet paper according to claim 1, characterized in that: The natural plant extracts include one or more of aloe extract, chamomile extract, wormwood extract, sophora flavescens extract and cnidium monnieri extract.

6. The flushable plant antibacterial wet toilet paper according to claim 1, characterized in that: The moisturizing agent comprises one or more of propylene glycol, glycerin, hyaluronic acid and vitamin E.

7. The flushable plant antibacterial wet toilet paper according to claim 1, characterized in that: The stabilizer comprises one or more of hydrogenated castor oil and Tween-20.

8. A method for preparing the flushable plant antibacterial wet toilet paper as claimed in claim 1, characterized in that: The specific steps include: (1) According to the raw material ratio of the wet toilet paper liquid, a certain amount of RO pure water is first added to a stirring kettle, and then the auxiliary agent described in the formula is added, and stirred until completely dissolved to obtain an aqueous solution; (2) according to the raw material ratio of the wet toilet paper liquid, the natural plant extract, the moisturizer, the preservative, the stabilizer, PEG-400, the Australian tea tree essential oil, the lactic acid, the 1,8-cineole, the terpinene-4-ol, and the essence are dissolved in the aqueous solution in step (1) in sequence, and stirred until the mixture is uniformly mixed to obtain the wet toilet paper liquid; (3) After the flushable non-woven fabric is cut, the toilet paper material liquid is evenly sprayed on the surface of the non-woven fabric. After a period of rest, the sprayed non-woven fabric is folded to obtain a multi-layer overlapping non-woven fabric; (4) Packaging: Put the multi-layer overlapping non-woven fabrics obtained in step (3) into a bag, seal it, and complete the packaging to obtain the flushable plant antibacterial wet toilet paper.

9. The method for preparing the flushable plant antibacterial wet toilet paper according to claim 8, characterized in that: The pH value of the aqueous solution in step (1) is 5-7.

10. The method for preparing the flushable plant antibacterial wet toilet paper according to claim 8, characterized in that: The stirring time in step (1) is 30 min; the stirring time in step (2) is 30 min; and the resting time in step (3) is 5 min.

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