Environmentally friendly disinfecting paper towel and preparation method thereof

Abstract

The present invention discloses an environmentally friendly disinfection paper towel and a preparation method thereof. The method comprises three main steps: first, preparing a cotton spunlace non-woven fabric as a substrate and cutting it; second, preparing an antibacterial liquid containing natural antibacterial components and adding a promoter to enhance the permeability of the liquid; finally, soaking the non-woven fabric in the antibacterial liquid, subjecting it to an irradiation process to ensure sterility, and folding and packaging it after drying to obtain a finished product. Compared with the prior art, the environmentally friendly disinfection paper towel of the present invention not only has an excellent antibacterial effect, but is also environmentally sustainable and has a long-lasting antibacterial performance, and is suitable for a variety of occasions such as homes and medical institutions.

Description

Technical Field

[0001] The invention relates to the technical field of sanitary disinfection, and in particular to an environmentally friendly disinfectant paper towel and a preparation method thereof. Background Art

[0002] An environmentally friendly disinfectant paper towel, commonly used in personal hygiene, medical care, food safety and environmental protection. It aims to provide a paper towel that can effectively disinfect and reduce the impact on the environment, meeting the needs of modern society for health and sustainable development.

[0003] Although traditional disinfectants such as chlorine and alcohol have good disinfection effects, they may have adverse effects on the environment and human health. Therefore, the research and development of new environmentally friendly disinfectants, such as disinfectants based on natural extracts, is a key technical point in this field. Environmentally friendly disinfectant tissues usually use non-woven fabrics as the base material. This material needs to have good water absorption and softness, as well as certain strength and durability. The production technology of non-woven fabrics, such as meltblown non-woven fabrics and spunlace non-woven fabrics, has a direct impact on the quality of tissues.

[0004] In order to improve the disinfection effect, it is necessary to ensure that the disinfectant can effectively penetrate into the non-woven fabric and form a uniform distribution on the surface of the paper towel. Without the use of penetrants or promoters, the disinfectant may not be able to evenly penetrate all the fibers of the non-woven fabric, resulting in uneven disinfection effect. This involves the penetration and adsorption mechanism of liquids in porous materials, and how to optimize this process through process control.

[0005] Ordinary penetrants or promoters may not be able to effectively penetrate the disinfectant into the nonwoven fabric and ensure a lasting antibacterial effect. This is because ordinary penetrants or promoters are usually designed to improve the penetration efficiency of liquids in the material and cannot meet specific needs. Therefore, in order to achieve the best antibacterial effect and durability, it is usually necessary to develop or select penetration promoters specifically for disinfectant wipes. These penetration promoters can not only improve the penetration efficiency of the disinfectant, but also ensure the uniform distribution and long-term stability of the disinfectant in the nonwoven fabric.

[0006] Irradiation technology is used in the preparation of disinfected paper towels to kill microorganisms that may remain on the paper towels and ensure the sterility of the product. The choice of irradiation technology (such as ultraviolet, gamma ray or electron beam irradiation) and dose control are crucial to the safety and effectiveness of the product.

[0007] China's invention patent CN110327259B discloses a children's wet wipes, which are composed of dust-free paper and wet wipes liquid, wherein the wet wipes liquid is composed of: 1%-1.5% peppermint extract, 2.0-3.0% honeysuckle extract, 1.5-2.0% chrysanthemum extract, 1.0%-1.5% atractylodes oil, 0.8%-1.2% cassia oil, 0.1%-0.2% sodium citrate, 15%-18% alkyl polyglucose, 2%-3% glycerol, and the balance of pure water. The children's wet wipes of the invention have no irritation and side effects, have significant sterilization and disinfection effects, are safe and reliable, and are green and environmentally friendly; while conveniently removing stains on human skin, they can also achieve effective sterilization, moisturizing, skin care, no residue, and dry quickly within the normal use time. However, the disinfection effect of the children's wet wipes prepared by the invention is poor, and the disinfection durability is average. Summary of the invention

[0008] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an environmentally friendly disinfecting paper towel with good and long-lasting disinfecting effect and a preparation method thereof.

[0009] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0010] A method for preparing an environmentally friendly disinfectant paper towel is as follows:

[0011] Step 1: Prepare the substrate: cut the cotton spunlace nonwoven fabric into squares;

[0012] Step 2: preparing an antibacterial liquid: adding tea tree oil, lavender oil and grapefruit seed extract to water and stirring and mixing thoroughly; then adding an accelerator and stirring and mixing uniformly; then adding L-ascorbic acid, citric acid, benzoic acid and tea polyphenols and stirring and mixing thoroughly to obtain an antibacterial liquid;

[0013] Step 3: Prepare household antibacterial wet wipes: soak the 100% cotton spunlace nonwoven fabric prepared in step 1 in the antibacterial liquid prepared in step 2 for 4 to 8 hours, then take it out and perform irradiation process operation; dry the irradiated wet 100% cotton spunlace nonwoven fabric to ensure that the liquid components are evenly distributed on the paper towel; fold and package the dried 100% cotton spunlace nonwoven fabric to obtain environmentally friendly disinfectant paper towels.

[0014] In the step 1, the pure cotton spunlace nonwoven fabric is cut into a square with a side length of 5 to 15 cm×5 to 15 cm.

[0015] The substances in step 2 are, by weight, 1 to 3 parts of tea tree oil, 2 to 4 parts of lavender oil, 0.8 to 1.5 parts of grapefruit seed extract, 80 to 120 parts of water, 0.5 to 1 part of accelerator, 0.1 to 0.3 parts of L-ascorbic acid, 0.3 to 0.5 parts of citric acid, 0.1 to 0.3 parts of benzoic acid, and 1 to 2 parts of tea polyphenols.

[0016] The irradiation environment of the irradiation process in step 3 is high-energy electron beam irradiation, the radiation dose is 10 to 30 KGy, and the irradiation time is 20 to 40 minutes.

[0017] The preparation method of the accelerator is as follows, in parts by weight:

[0018] S1: under normal pressure, tridecyl alcohol polyether-10 phosphate and ethoxy propoxylated-C8-10-fatty alcohol are added to a reactor in sequence, mixed by a centrifugal pump, and then water is added, the reactor is heated to 30-45° C., the speed is set to 100-200 r / min, and stirred for 5-8 hours to obtain a pretreated product;

[0019] S2: adding the pre-treated product prepared in step S1 into a potassium hydroxide aqueous solution, setting the rotation speed to 100-200 r / min, and stirring for 10-30 minutes to obtain a post-treated product;

[0020] S3: adding sucrose fatty acid ester and sorbitan dioleate together to the post-treated product prepared in step S2, heating to 40-55° C., setting the rotation speed to 100-200 r / min, and stirring for 3-8 minutes to obtain a promoter.

[0021] In the step S1, the substances are 0.5 to 1 parts by weight of tridecyl alcohol polyether-10 phosphate, 20 to 40 parts by weight of ethoxypropoxylated-C8-10-fatty alcohol, and 40 to 60 parts by weight of water.

[0022] In step S2, each substance is 70 to 90 parts by weight of a 2 to 8 wt % potassium hydroxide aqueous solution.

[0023] In step S3, the substances are 0.4-0.8 parts by weight of sucrose fatty acid ester and 0.8-1.2 parts by weight of sorbitan dioleate.

[0024] The functions of various substances used in the present invention in the process of preparing environmentally friendly disinfectant paper towels are as follows:

[0025] The cotton spunlace nonwoven fabric is used as the base material to provide the basic structure of the paper towel. The cotton material is soft and has good water absorption, making it suitable as a carrier for cleaning and disinfection purposes.

[0026] Tea tree oil has natural antibacterial and anti-inflammatory properties and is often used in disinfecting and cleaning products to help kill bacteria and fungi.

[0027] In addition to its aromatic properties, lavender oil also has antibacterial and antifungal properties, which can help enhance the disinfecting effectiveness of paper towels.

[0028] Grapefruit seed extract contains natural antimicrobial properties that enhance the disinfecting ability of the wipes while providing a fresh scent.

[0029] L-Ascorbic acid (vitamin C) acts as an antioxidant, helps stabilize other ingredients, extends the shelf life of the product, and may enhance the effectiveness of disinfectants.

[0030] Citric acid has natural antiseptic and cleansing properties that help remove stains and kill germs.

[0031] Benzoic acid is used as a preservative to help prevent microbial growth in products during storage.

[0032] Tea polyphenols have antioxidant properties that can enhance the antibacterial properties of paper towels and provide additional preservative effects.

[0033] Accelerators increase the permeability of antimicrobial liquids in nonwoven fabrics, ensuring that the liquid components are evenly distributed and penetrate deep into the fibers, thereby improving the durability of the disinfection effect.

[0034] The molecular structure of trideceth-10 phosphate contains a long-chain alkyl group (tridecyl) and a phosphate group. The long-chain alkyl group increases the lipophilicity of the molecule, enabling it to better interact with the cellulose fibers in the non-woven fabric. This lipophilicity helps the oily components in the antibacterial solution to better penetrate into the fiber structure of the non-woven fabric. The head of the phosphate group is hydrophilic and can form hydrogen bonds with the water molecules in the antibacterial solution, increasing the hydrophilicity of the solution. This hydrophilicity helps the antibacterial solution to diffuse and penetrate into the non-woven fabric. The presence of the polyether chain increases the flexibility of the molecule and the complexity of the spatial structure, which may help the antibacterial solution to be evenly distributed in the non-woven fabric, thereby improving the antibacterial effect.

[0035] Ethoxypropoxylated-C8-10-fatty alcohols are compounds that contain ethoxy and propoxy ether bonds that increase the hydrophilicity of the molecule while maintaining the basic lipophilic nature of the fatty alcohol. The presence of ether bonds may help improve the compatibility of the molecule with water, thereby enhancing the permeability of antimicrobial solutions. Fatty alcohol polyoxyethylene ethers are nonionic surfactants that contain polyoxyethylene segments in their molecular structure, which provide good hydrophilicity. However, the length and distribution of the polyoxyethylene segments may affect their compatibility and permeability with antimicrobial solutions.

[0036] Sucrose fatty acid esters are ester compounds obtained by esterification of sucrose and fatty acids. Sucrose is a polyhydroxy non-reducing sugar with more hydrophilic hydroxyl groups, which can increase its solubility in water. At the same time, the fatty acid part provides lipophilicity, which helps compatibility with oily ingredients. Polyglycerol fatty acid esters are ester compounds obtained by esterification of polyglycerol (a polyether compound containing multiple hydroxyl groups) and fatty acids. Compared with sucrose fatty acid esters, polyglycerol fatty acid esters have more hydroxyl groups in their molecular structure, which may increase their hydrophilicity, but may also affect their compatibility with oily ingredients.

[0037] Sorbitan dioleate is an ester compound obtained by the reaction of sorbitol (anhydrous sorbitan) and fatty acids. Sorbitol is a polyol with more hydroxyl groups, which can form hydrogen bonds with water molecules, thereby increasing its solubility in water. At the same time, the fatty acid part provides lipophilicity, which helps compatibility with oily ingredients. Sorbitan fatty acid ester is an ester compound obtained by the esterification reaction of anhydrous sorbitan and fatty acids. Anhydrous sorbitan is a polyol with fewer hydroxyl groups, its molecular structure is relatively simpler, and its hydrophilicity may be slightly lower than that of sorbitol.

[0038] The accelerator added in the present invention includes tridecyl alcohol polyether-10 phosphate and ethoxy propoxylated-C8-10-fatty alcohol, as well as sucrose fatty acid ester and sorbitan dioleate, which can increase the permeability of the antibacterial liquid, so that the antibacterial components can penetrate deeper into the fiber interior of the all-cotton spunlace non-woven fabric. This penetration not only increases the content of the antibacterial liquid, but also helps to evenly distribute the antibacterial components on the paper towel, thereby enhancing the antibacterial effect. The irradiation process operation uses high-energy electron beam irradiation, which can not only further kill microorganisms that may remain on the paper towel, but also can cross-link the fibers, enhance the fixation of the paper towel to the antibacterial components, thereby improving the durability of the antibacterial performance.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1) The environmentally friendly disinfectant paper towel prepared by the present invention uses natural antibacterial ingredients such as tea tree oil, lavender oil and grapefruit seed extract, and the paper towel has a broad-spectrum antibacterial effect, can effectively inhibit the growth of various bacteria and fungi, and reduce the risk of cross infection.

[0041] 2) The environmentally friendly disinfectant paper towel prepared by the present invention is prepared by adding an accelerator and a high-energy electron beam irradiation process, so that the antibacterial components can penetrate deeper into the non-woven fabric fibers and be more evenly distributed, thereby improving the durability of the antibacterial effect.

[0042] 3) The natural antibacterial ingredients and promoters used in the preparation of the environmentally friendly disinfectant paper towels of the present invention are non-toxic or low-toxic substances, are friendly to human skin, and are suitable for daily use, especially for children and people with sensitive skin. DETAILED DESCRIPTION

[0043] Main sources of substances:

[0044] Cotton spunlace nonwoven fabric: Cotton Roca Technology (Jiangsu) Co., Ltd., weight: 80g / m 2 .

[0045] Tea tree oil: Ji'an Shengda Spice Oil Co., Ltd., item number: 0085.

[0046] Lavender oil: Jiangxi Yisenyuan Plant Spice Co., Ltd., item number: 135.

[0047] Grapefruit seed extract: Shaanxi Ruilin Panier Biotechnology Co., Ltd., product number: RPPTYZ.

[0048] L-Ascorbic acid: Fuyang Dianpeng Food Additive Co., Ltd., model: Vitamin C.

[0049] Citric acid: Suzhou Baiying Chemical Co., Ltd., item number: 026.

[0050] Tea polyphenols: Shaanxi Baichuan Biotechnology Co., Ltd., product number: BC20190717-4.

[0051] Stearyl alcohol polyether-2 phosphate: Hubei Wonder Chemical Co., Ltd., CAS No.: 62362-49-6, item No.: WD6880.

[0052] Tridecyl ether-10 phosphate: Zhuhai Weiken Chemical Co., Ltd., CAS: 9046-01-9, model: PL35.

[0053] Ethoxypropoxylated-C8-10-fatty alcohol: Hubei Shishun Biotechnology Co., Ltd., CAS: 68603-25-8, item number: SS5302.

[0054] Fatty alcohol polyoxyethylene ether: Shanghai Yuanye Biotechnology Co., Ltd., product number: S24659.

[0055] Sucrose fatty acid esters: Shanghai Yuanye Biotechnology Co., Ltd., product number: S30894.

[0056] Polyglycerol fatty acid esters: Hebei Hongtao Bioengineering Co., Ltd., CAS number: 67784-82-1.

[0057] Sorbitan dioleate: Shenzhen Aituo Chemical Co., Ltd., CAS No.: 29116-98-1, molecular formula: C42H76O7, product No.: P17335216.

[0058] Sorbitan fatty acid ester: Jiangsu Haian Petrochemical Plant, product number: S-80.

[0059] Example 1

[0060] A method for preparing an environmentally friendly disinfectant paper towel is as follows:

[0061] Step 1: Prepare the substrate: Cut the cotton spunlace nonwoven fabric into a square with a side length of 10cm×10cm;

[0062] Step 2: preparing an antibacterial liquid: adding 2 g of tea tree oil, 3 g of lavender oil and 1.2 g of grapefruit seed extract to 100 g of water and stirring and mixing thoroughly; then adding 0.8 g of an accelerator and stirring and mixing uniformly; then adding 0.2 g of L-ascorbic acid, 0.4 g of citric acid, 0.2 g of benzoic acid and 1.5 g of tea polyphenols and stirring and mixing thoroughly to obtain an antibacterial liquid;

[0063] Step 3: Prepare household antibacterial wet wipes: soak the cotton spunlace nonwoven fabric prepared in step 1 in the antibacterial solution prepared in step 2 for 6 hours, then take it out and perform irradiation process operation. The irradiation environment is high-energy electron beam irradiation, the radiation dose is 20KGy, and the irradiation time is 30 minutes; dry the irradiated wet cotton spunlace nonwoven fabric to ensure that the liquid components are evenly distributed on the paper towel; fold and package the dry cotton spunlace nonwoven fabric to obtain environmentally friendly disinfectant paper towels.

[0064] The preparation method of the accelerator is as follows:

[0065] S1: Under normal pressure, 0.8 kg of tridecyl alcohol polyether-10 phosphate and 30 kg of ethoxypropoxylated-C8-10-fatty alcohol were added to a reactor in sequence, mixed by a centrifugal pump, and then 50 kg of water was added, the reactor was heated to 40 ° C, the speed was set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0066] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0067] S3: 0.6 kg of sucrose fatty acid ester and 1 kg of sorbitan dioleate were added to the post-treated product prepared in step S2, heated to 50° C., set the rotation speed to 150 r / min, and stirred for 5 minutes to obtain a promoter.

[0068] Example 2

[0069] The preparation method of an environmentally friendly disinfectant paper towel is basically the same as that of Example 1, the only difference being that the preparation method of the accelerator is different.

[0070] The preparation method of the accelerator is as follows:

[0071] S1: Under normal pressure, 0.8 kg of stearyl alcohol polyether-2 phosphate and 30 kg of ethoxypropoxylated-C8-10-fatty alcohol are added to a reactor in sequence, mixed by a centrifugal pump, and then 50 kg of water are added, the reactor is heated to 40 ° C, the speed is set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0072] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0073] S3: 0.6 kg of sucrose fatty acid ester and 1 kg of sorbitan dioleate were added to the post-treated product prepared in step S2, heated to 50° C., set the rotation speed to 150 r / min, and stirred for 5 minutes to obtain a promoter.

[0074] Example 3

[0075] The preparation method of an environmentally friendly disinfectant paper towel is basically the same as that of Example 1, the only difference being that the preparation method of the accelerator is different.

[0076] The preparation method of the accelerator is as follows:

[0077] S1: Under normal pressure, 0.8 kg of tridecyl alcohol polyether-10 phosphate and 30 kg of fatty alcohol polyoxyethylene ether were added to a reactor in sequence, mixed by a centrifugal pump, and then 50 kg of water were added, the reactor was heated to 40 ° C, the speed was set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0078] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0079] S3: 0.6 kg of sucrose fatty acid ester and 1 kg of sorbitan dioleate were added to the post-treated product prepared in step S2, heated to 50° C., set the rotation speed to 150 r / min, and stirred for 5 minutes to obtain a promoter.

[0080] Example 4

[0081] The preparation method of an environmentally friendly disinfectant paper towel is basically the same as that of Example 1, the only difference being that the preparation method of the accelerator is different.

[0082] The preparation method of the accelerator is as follows:

[0083] S1: Under normal pressure, 0.8 kg of tridecyl alcohol polyether-10 phosphate and 30 kg of ethoxypropoxylated-C8-10-fatty alcohol were added to a reactor in sequence, mixed by a centrifugal pump, and then 50 kg of water was added, the reactor was heated to 40 ° C, the speed was set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0084] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0085] S3: 0.6 kg of polyglycerol fatty acid ester and 1 kg of sorbitan dioleate were added to the post-treated product prepared in step S2, heated to 50° C., set the rotation speed to 150 r / min, and stirred for 5 minutes to obtain a promoter.

[0086] Example 5

[0087] The preparation method of an environmentally friendly disinfectant paper towel is basically the same as that of Example 1, the only difference being that the preparation method of the accelerator is different.

[0088] The preparation method of the accelerator is as follows:

[0089] S1: Under normal pressure, 0.8 kg of tridecyl alcohol polyether-10 phosphate and 30 kg of ethoxypropoxylated-C8-10-fatty alcohol were added to a reactor in sequence, mixed by a centrifugal pump, and then 50 kg of water was added, the reactor was heated to 40 ° C, the speed was set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0090] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0091] S3: 0.6 kg of sucrose fatty acid ester and 1 kg of sorbitan fatty acid ester were added to the post-treated product prepared in step S2, heated to 50° C., set the rotation speed to 150 r / min, and stirred for 5 minutes to obtain a promoter.

[0092] Comparative Example 1

[0093] The preparation method of an environmentally friendly disinfectant paper towel is basically the same as that of Example 1, the only difference being that the preparation method of the accelerator is different.

[0094] The preparation method of the accelerator is as follows:

[0095] S1: Under normal pressure, 30 kg of ethoxypropoxylated-C8-10-fatty alcohol was added to a reactor, and then 50 kg of water was added, the reactor was heated to 40° C., the speed was set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0096] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0097] S3: 0.6 kg of sucrose fatty acid ester and 1 kg of sorbitan dioleate were added to the post-treated product prepared in step S2, heated to 50° C., set the rotation speed to 150 r / min, and stirred for 5 minutes to obtain a promoter.

[0098] Comparative Example 2

[0099] The preparation method of an environmentally friendly disinfectant paper towel is basically the same as that of Example 1, the only difference being that the preparation method of the accelerator is different.

[0100] The preparation method of the accelerator is as follows:

[0101] S1: Under normal pressure, 0.8 kg of tridecyl alcohol polyether-10 phosphate was added to a reactor, and then 50 kg of water was added, the reactor was heated to 40 ° C, the speed was set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0102] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0103] S3: 0.6 kg of sucrose fatty acid ester and 1 kg of sorbitan dioleate were added to the post-treated product prepared in step S2, heated to 50° C., set the rotation speed to 150 r / min, and stirred for 5 minutes to obtain a promoter.

[0104] Comparative Example 3

[0105] The preparation method of an environmentally friendly disinfectant paper towel is basically the same as that of Example 1, the only difference being that the preparation method of the accelerator is different.

[0106] The preparation method of the accelerator is as follows:

[0107] S1: Under normal pressure, 0.8 kg of tridecyl alcohol polyether-10 phosphate and 30 kg of ethoxypropoxylated-C8-10-fatty alcohol were added to a reactor in sequence, mixed by a centrifugal pump, and then 50 kg of water was added, the reactor was heated to 40 ° C, the speed was set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0108] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0109] S3: Add 1 kg of sorbitan dioleate to the post-treated product prepared in step S2, heat to 50° C., set the rotation speed to 150 r / min, and stir for 5 minutes to obtain a promoter.

[0110] Comparative Example 4

[0111] The preparation method of an environmentally friendly disinfectant paper towel is basically the same as that of Example 1, the only difference being that the preparation method of the accelerator is different.

[0112] The preparation method of the accelerator is as follows:

[0113] S1: Under normal pressure, 0.8 kg of tridecyl alcohol polyether-10 phosphate and 30 kg of ethoxypropoxylated-C8-10-fatty alcohol were added to a reactor in sequence, mixed by a centrifugal pump, and then 50 kg of water was added, the reactor was heated to 40 ° C, the speed was set to 150 r / min, and stirred for 6 hours to obtain a pretreated product;

[0114] S2: adding the pre-treated product prepared in step S1 into 80 kg of 5 wt % potassium hydroxide aqueous solution, setting the rotation speed to 150 r / min, and stirring for 20 minutes to obtain a post-treated product;

[0115] S3: Add 0.6 kg of sucrose fatty acid ester to the post-treated product prepared in step S2, heat to 50° C., set the rotation speed to 150 r / min, and stir for 5 minutes to obtain a promoter.

[0116] Comparative Example 5

[0117] A method for preparing an environmentally friendly disinfectant paper towel is as follows:

[0118] Step 1: Prepare the substrate: Cut the cotton spunlace nonwoven fabric into a square with a side length of 10cm×10cm;

[0119] Step 2: preparing an antibacterial liquid: adding 2 g of tea tree oil, 3 g of lavender oil and 1.2 g of grapefruit seed extract to 100 g of water and stirring and mixing thoroughly; then adding 0.2 g of L-ascorbic acid, 0.4 g of citric acid, 0.2 g of benzoic acid and 1.5 g of tea polyphenols and stirring and mixing thoroughly to obtain an antibacterial liquid;

[0120] Step 3: Prepare household antibacterial wet wipes: soak the cotton spunlace nonwoven fabric prepared in step 1 in the antibacterial solution prepared in step 2 for 6 hours, then take it out and perform irradiation process operation. The irradiation environment is high-energy electron beam irradiation, the radiation dose is 20KGy, and the irradiation time is 30 minutes; dry the irradiated wet cotton spunlace nonwoven fabric to ensure that the liquid components are evenly distributed on the paper towel; fold and package the dry cotton spunlace nonwoven fabric to obtain environmentally friendly disinfectant paper towels.

[0121] Comparative Example 6

[0122] A method for preparing an environmentally friendly disinfectant paper towel is as follows:

[0123] Step 1: Prepare the substrate: Cut the cotton spunlace nonwoven fabric into a square with a side length of 10cm×10cm;

[0124] Step 2: preparing an antibacterial liquid: adding 2 g of tea tree oil, 3 g of lavender oil and 1.2 g of grapefruit seed extract to 100 g of water and stirring and mixing thoroughly; then adding 0.8 g of an accelerator and stirring and mixing uniformly; then adding 0.2 g of L-ascorbic acid, 0.4 g of citric acid, 0.2 g of benzoic acid and 1.5 g of tea polyphenols and stirring and mixing thoroughly to obtain an antibacterial liquid;

[0125] Step 3: Prepare household antibacterial wet wipes: soak the 100% cotton spunlace nonwoven fabric prepared in step 1 in the antibacterial solution prepared in step 2 for 6 hours, then take it out and dry the wet 100% cotton spunlace nonwoven fabric to ensure that the components of the solution are evenly distributed on the wipes; fold and package the dry 100% cotton spunlace nonwoven fabric to obtain environmentally friendly disinfectant wipes.

[0126] The preparation method of the accelerator is the same as that of Example 1.

[0127] Test Example 1

[0128] Antibacterial test

[0129] The environmentally friendly disinfectant paper towels prepared in Examples 1-5 and Comparative Examples 1-6 were subjected to antibacterial experimental tests:

[0130] Z1. Preparation of bacterial suspension: Select specific bacteria (Escherichia coli 8099, Staphylococcus aureus ATCC6538, Candida albicans ATCC10231) that have been freshly cultured for 18-24 hours, wash with PBS solution and prepare bacterial suspension (drop 100 μL on the control sample, and recover 1×104 -9×10 4 cfu / piece);

[0131] Z2. Sample processing: Cut the environmentally friendly disinfectant paper towel into 50mm×50mm sheets;

[0132] Z3. Oscillating mixing: Place the environmentally friendly disinfectant paper towel pieces into a conical flask and oscillate on an oscillating shaker at 200 rpm for 1 hour;

[0133] Z4. Colony count: Take samples before and after shaking, dilute and inoculate on plates using the agar pouring method, and incubate at 37°C for 24 hours to count the number of colonies;

[0134] Z5. Data analysis: The antibacterial rate was determined by calculating the formula X=(AB) / A×100%, where A is the average number of colonies before oscillation and B is the average number of colonies after oscillation.

[0135] The test results are shown in Table 1.

[0136] Table 1 Antibacterial performance test results

[0137]

[0138] Test Example 2

[0139] Antimicrobial persistence test

[0140] The environmentally friendly disinfectant paper towel used in Test Example 1 was taken out, left to stand at room temperature for 24 hours, and then tested for antibacterial properties using the method of Test Example 1. The results are shown in Table 2.

[0141] Table 2 Antimicrobial persistence test results

[0142]

[0143] It can be seen from the test data in Table 1 and Table 2 that the environmentally friendly disinfectant paper towel prepared in Example 1 of the present invention has good antibacterial performance and long-lasting antibacterial performance.

[0144] In the process of preparing environmentally friendly disinfection paper towels, the main difference between Example 1 and Example 2 is that the raw materials of the promoters used are different. Example 1 uses tridecyl alcohol polyether-10 phosphate, while Example 2 uses stearyl alcohol polyether-2 phosphate. Although both compounds belong to phosphate compounds, their molecular structures and properties are different. The main function of tridecyl alcohol polyether-10 phosphate is to increase the permeability of the antibacterial liquid, so that the antibacterial liquid can more effectively penetrate into the interior of the cotton spunlace non-woven fabric. The molecular structure characteristics of this promoter have an important influence on its permeability and antibacterial properties. Due to the molecular structure characteristics of tridecyl alcohol polyether-10 phosphate, it can effectively promote the penetration of the antibacterial liquid, so that the antibacterial components can penetrate deeper into the fiber interior of the non-woven fabric. In this way, the chance of contact between the antibacterial components and microorganisms increases, thereby improving the antibacterial properties. Enhanced permeability means that the fixation of the antibacterial components in the non-woven fabric is more stable and not easy to be washed away. Furthermore, due to the lipophilic and hydrophilic properties of trideceth-10 phosphate, it may contribute to the long-term retention of the antimicrobial ingredients in the nonwoven fabric, thereby providing a long-lasting antimicrobial effect.

[0145] The main difference between Example 1 and Example 3 in the preparation of the promoter is that the alcohol compounds used are different. Example 1 uses ethoxypropoxylated-C8-10-fatty alcohol, while Example 3 uses fatty alcohol polyoxyethylene ether. The differences in the molecular structure and properties of these two compounds may be the reason why the environmentally friendly disinfectant paper towel prepared in Example 1 has good antibacterial properties and lasting antibacterial properties. The ether bond structure of ethoxypropoxylated-C8-10-fatty alcohol may help the antibacterial liquid to better disperse and penetrate into the fiber interior of the non-woven fabric, thereby increasing the contact opportunity between the antibacterial component and the microorganism and enhancing the antibacterial effect. Since the hydrophilicity and lipophilicity of ethoxypropoxylated-C8-10-fatty alcohol are properly balanced, it may help the antibacterial liquid to be evenly distributed and fixed in the non-woven fabric, reduce the loss of antibacterial components, and thus provide more lasting antibacterial protection.

[0146] Example 1 is compared with Example 4. Sucrose fatty acid ester is used in Example 1, while polyglycerol fatty acid ester is used in Example 4. The balance between the hydrophilicity and lipophilicity of sucrose fatty acid ester may be more suitable for the formulation of antibacterial liquid, and contribute to the uniform dispersion and penetration of antibacterial ingredients. This balance helps to improve the permeability of antibacterial liquid in non-woven fabrics, so that the antibacterial ingredients can effectively contact microorganisms, thereby improving the antibacterial properties. The molecular structure of sucrose fatty acid ester may help to fix the antibacterial ingredients in non-woven fabrics, reduce the loss of antibacterial ingredients, and thus provide a more lasting antibacterial effect. In addition, the polyhydroxy structure of sucrose fatty acid ester may help to form more interactions with non-woven fibers, enhance the binding force of antibacterial ingredients, and prolong their durability on paper towels.

[0147] Sorbitan dioleate was used in Example 1, while sorbitan fatty acid ester was used in Example 5. Sorbitan dioleate may form more hydrogen bonds in the aqueous phase due to its more hydroxyl groups, thereby facilitating the dispersion and penetration of the antibacterial liquid. Such good dispersibility and permeability can increase the contact opportunities between the antibacterial components and microorganisms, thereby enhancing the antibacterial properties. The balance of hydrophilicity and lipophilicity of sorbitan dioleate may help to fix and evenly distribute the antibacterial components in the non-woven fabric, reduce the loss of the antibacterial components, and thus provide a more lasting antibacterial effect. In addition, the polyol structure of sorbitan dioleate may form more interactions with the non-woven fibers, enhance the binding force of the antibacterial components, and prolong their durability on the paper towel.

[0148] Example 1 comprehensively improves the antibacterial performance and long-lasting antibacterial performance of the environmentally friendly disinfectant paper towel through the carefully selected antibacterial liquid formula, effective promoter and high-energy electron beam irradiation process. These factors work together to make the paper towel of Example 1 superior to the comparative example in terms of antibacterial effect.

Claims

1. A method for preparing an environmentally friendly disinfectant paper towel, characterized in that: The preparation method is as follows: Step 1: Prepare the substrate: cut the cotton spunlace nonwoven fabric into squares; Step 2: preparing an antibacterial liquid: adding tea tree oil, lavender oil and grapefruit seed extract into water and stirring and mixing thoroughly; then adding an accelerator and stirring and mixing uniformly; then adding L-ascorbic acid, citric acid, benzoic acid and tea polyphenols, stirring and mixing thoroughly to obtain an antibacterial liquid; Step 3: preparing household antibacterial wet tissues: soaking the 100% cotton spunlace nonwoven fabric prepared in step 1 in the antibacterial liquid prepared in step 2 for 4 to 8 hours, then taking it out and performing irradiation process operation; drying the irradiated wet 100% cotton spunlace nonwoven fabric to ensure that the liquid components are evenly distributed on the tissue; folding and packaging the dried 100% cotton spunlace nonwoven fabric to obtain environmentally friendly disinfectant tissues; The substances in step 2 are, by weight, 1 to 3 parts of tea tree oil, 2 to 4 parts of lavender oil, 0.8 to 1.5 parts of grapefruit seed extract, 80 to 120 parts of water, 0.5 to 1 part of accelerator, 0.1 to 0.3 parts of L-ascorbic acid, 0.3 to 0.5 parts of citric acid, 0.1 to 0.3 parts of benzoic acid, and 1 to 2 parts of tea polyphenols; The preparation method of the accelerator is as follows, in parts by weight: S1: under normal pressure, tridecyl alcohol polyether-10 phosphate and ethoxy propoxylated-C8-10-fatty alcohol are added to a reactor in sequence, mixed by a centrifugal pump, and then water is added, the reactor is heated to 30-45° C., the speed is set to 100-200 r / min, and stirred for 5-8 hours to obtain a pretreated product; S2: adding the pre-treated product prepared in step S1 into a potassium hydroxide aqueous solution, setting the rotation speed to 100-200 r / min, and stirring for 10-30 minutes to obtain a post-treated product; S3: adding sucrose fatty acid ester and sorbitan dioleate together to the post-treated product prepared in step S2, heating to 40-55° C., setting the rotation speed to 100-200 r / min, and stirring for 3-8 minutes to obtain a promoter; The substances in step S1 are 0.5 to 1 parts by weight of tridecyl alcohol polyether-10 phosphate, 20 to 40 parts by weight of ethoxypropoxylated-C8-10-fatty alcohol, and 40 to 60 parts by weight of water; In step S2, 70 to 90 parts by weight of a 2 to 8 wt % aqueous potassium hydroxide solution; In step S3, the substances are 0.4-0.8 parts by weight of sucrose fatty acid ester and 0.8-1.2 parts by weight of sorbitan dioleate.

2. The method for preparing the environmentally friendly disinfecting paper towel according to claim 1, characterized in that: In the step 1, the pure cotton spunlace nonwoven fabric is cut into a square with a side length of 5 to 15 cm×5 to 15 cm.

3. The method for preparing the environmentally friendly disinfecting paper towel according to claim 1, characterized in that: The irradiation environment of the irradiation process in step 3 is high-energy electron beam irradiation, the radiation dose is 10 to 30 KGy, and the irradiation time is 20 to 40 minutes.

4. An environmentally friendly disinfectant paper towel, characterized in that: The preparation method is as described in any one of claims 1 to 3.

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