Environment-friendly antibacterial laundry fragrance retention bead and preparation method thereof

Abstract

The invention belongs to the technical field of daily chemical detergents, and particularly relates to an environment-friendly antibacterial laundry fragrance retention bead and a preparation method thereof, and the environment-friendly antibacterial laundry fragrance retention bead comprises the following raw materials by mass: 85-89% of a polyethylene glycol polymer; 5%-10% of sodium sulfate; 2.96% to 4.93% of essence; 0.5%-1.5% of chitosan oligosaccharide; 1%-2% of epsilon-polylysine; 0.01%-0.03% of citric acid; 0.2 to 0.5 percent of resveratrol; and 0.02%-0.05% of a dye. The fragrance-retaining bead not only retains fragrance for a long time, but also has excellent bactericidal performance, is environmentally friendly, and is beneficial and harmless to a human body.

Description

Technical Field

[0001] The invention belongs to the technical field of daily chemical detergents, and particularly relates to environmentally friendly antibacterial laundry fragrance beads and a preparation method thereof. Background Art

[0002] With the development of the times and the improvement of living standards, entertainment, dining and fitness activities have entered people's daily lives. However, the fumes produced by hot pot, barbecue and other foods and the sweat odor after exercise will remain on clothes, causing discomfort. In addition, the humid and hot environment in the rainy season in the south will cause musty odors on clothes. Therefore, giving fabrics a long-lasting fragrance is a good way to solve the above problems.

[0003] In recent years, fragrance beads have set off a craze in the market. Adding a small amount of fragrance beads when washing clothes will leave the smell of perfume on the clothes. Compared with laundry detergent and washing powder, fragrance beads have a strong and long-lasting fragrance and have been favored by consumers for a period of time. However, a single fragrance function cannot meet the needs of consumers. Fragrance beads are developing in a multi-functional direction, such as antibacterial, mite removal and softening.

[0004] In daily life, people are exposed to microorganisms such as bacteria, fungi and viruses all the time. The improvement of living standards has made people pay more attention to their own health and hygiene safety, and the awareness of antibacterial and sterilization has increased. Chinese invention patent CN111518637A discloses a strong bactericidal and long-lasting antibacterial laundry fragrance beads and a preparation method thereof, the formula of which is as follows: 75-85 parts of polyethylene glycol polymer, 3-8 parts of sodium bicarbonate, 3-7 parts of glycerol, 2.5-3.9 parts of bactericidal and antibacterial agents, 0.5-1.5 parts of fragrance microcapsules, 0.1-0.2 parts of 2,6-di-tert-butyl-4-methylphenol and 0.03-1.2 parts of dyes. Chinese invention patent CN112080345A discloses a kind of clothing fragrance beads and its preparation method, and its formula is as follows: 75-85 parts of polyethylene glycol polymer, 3-8 parts of sodium bicarbonate, 3-7 parts of glycerol, 4-7 parts of layered liquid crystal essence emulsion, 2.5-3.9 parts of bactericidal and antibacterial agent, 0.1-0.2 parts of 2,6-di-tert-butyl-4-methylphenol and 0.03-1.2 parts of dye. The bactericidal and antibacterial agents in these two patents are composed of benzalkonium chloride and hydroxydichlorodiphenyl ether, which have good bactericidal effects, but such bactericides are toxic and long-term use will be harmful to human health. Therefore, it is necessary to find a non-toxic, non-irritating, and harmless antibacterial agent to human health to add to the fragrance beads. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an environmentally friendly antibacterial laundry fragrance beads, which not only retain fragrance for a long time, but also have excellent bactericidal performance, are environmentally friendly, and are beneficial and harmless to the human body. The present invention also provides a scientific and reasonable preparation method.

[0006] The environmentally friendly antibacterial laundry fragrance beads of the present invention include the following raw materials in percentage by mass:

[0007] Polyethylene glycol polymer 85% to 89%;

[0008] Sodium sulfate 5% to 10%;

[0009] Fragrance 2.96%~4.93%;

[0010] Chitosan oligosaccharide 0.5%~1.5%;

[0011] ε-polylysine 1% to 2%;

[0012] Citric acid 0.01%~0.03%;

[0013] Resveratrol 0.2-0.5%;

[0014] Dye 0.02%~0.05%.

[0015] Preferably, the polyethylene glycol polymer is an addition product of ethylene glycol and ethylene oxide.

[0016] Preferably, the number average molecular weight of the polyethylene glycol polymer is 4,000 to 8,000.

[0017] Preferably, the molecular weight of ε-polylysine is between 3600 and 4300.

[0018] Preferably, the molecular weight of chitosan oligosaccharide is between 350 and 3200.

[0019] Polyethylene glycol polymer is used as a non-ionic surfactant and has a good encapsulation effect on ingredients such as flavors, resveratrol, dyes, chitosan oligosaccharides and ε-polylysine.

[0020] The addition of sodium sulfate has the effect of increasing the hardness of the fragrance beads.

[0021] ε-polylysine is a homologous polymer polypeptide composed of 25 to 30 lysine residues connected by peptide bonds. ε-polylysine can be used as a food-grade preservative. Its antibacterial mechanism is mainly to inhibit the respiration of microorganisms, resulting in a deficiency of energy substance ATP and reducing substance NADH, which blocks all anabolism, and the active dynamic membrane structure cannot be maintained. The metabolic direction tends to hydrolysis, and finally cell autolysis occurs; on the other hand, ε-polylysine also acts on the biomembrane system and protein synthesis system, and it binds to ribosomes to inhibit the synthesis of protein and enzyme biomacromolecules. Because the biomembrane system is the main place for microorganisms to carry out life activities such as energy conversion and material metabolism, ε-polylysine can directly and quickly destroy the energy generation that depends on the integrity of the membrane structure and the selectivity of cells and organelles for the survival of substances after staying in the biomembrane, resulting in the rupture of the intracellular lysosomal membrane and inducing microorganisms to produce autolysis, which ultimately leads to cell death. In addition, polylysine also has anti-aging effects because it is derived from proteins and amino acids and can adhere to skin cells to fill fine lines and make the skin look smoother. In addition, it can improve skin tone, provide exfoliation, reduce fine lines and wrinkles, and minimize damage caused by photoaging.

[0022] Chitosan oligosaccharides are small molecule oligosaccharides with amino groups obtained by degrading chitosan from shrimp and crab shells. They are sugar chains with a degree of polymerization of 2 to 20 and a molecular weight of less than 3200Da. Compared with chitosan, they have a lower molecular weight and better water solubility. Under acidic conditions, the free amino groups in the chitosan oligosaccharide molecules are protonated, and the protonated ammonium can react with the positively charged cell membrane of bacteria, interfering with the function of the bacterial cell membrane, causing the loss of cytoplasm in the bacteria, and inhibiting the growth of fungi and microorganisms. At the same time, chitosan oligosaccharides have obvious moisturizing effects, help damaged skin recover, activate body cells, prevent skin roughness and aging, inhibit the growth of harmful bacteria on the skin surface, and have antibacterial and anti-skin disease functions and absorb ultraviolet rays.

[0023] The method for preparing the environmentally friendly antibacterial laundry fragrance beads of the present invention comprises the following steps:

[0024] (1) heating the polyethylene glycol polymer to 80-90° C. until it is completely melted into a viscous liquid;

[0025] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, and stirring at a speed of 200 to 300 r / min to obtain a mixture;

[0026] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Chitosan oligosaccharide and ε-polylysine are naturally non-toxic, harmless and non-irritating, and are ideal bactericidal and antibacterial agents;

[0029] 2. Chitosan oligosaccharide is adsorbed on fabrics and comes into contact with human skin, which not only moisturizes the skin, but also helps damaged skin recover, activates body cells, and prevents skin roughness and aging;

[0030] 3. ε-polylysine is adsorbed onto the fabric and comes into contact with human skin. Since it is derived from protein and amino acids, it has good skin affinity, can fill fine lines on the skin, make the skin smoother, and improve skin tone.

[0031] 4. Adding resveratrol, which works synergistically with chitosan oligosaccharides and ε-polylysine, has an excellent bactericidal effect. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with embodiments.

[0033] Unless otherwise specified, all raw materials used in the examples are commercially available.

[0034] Sodium sulfate, Shandong Dengyi Chemical Group Co., Ltd.;

[0035] Flavor, Guangzhou Shengxiang Chemical Co., Ltd.;

[0036] Chitosan oligosaccharide, molecular weight 350-3200, Jiangsu Caiwei Biotechnology Co., Ltd.;

[0037] ε-polylysine, molecular weight 3600-4300, Beichuangzhiyuan Biotechnology Co., Ltd.;

[0038] Citric acid, Suzhou Anxin Fine Chemical Co., Ltd.;

[0039] Resveratrol, Guangdong Shunxin Biotechnology Co., Ltd.;

[0040] Dye, Shaanxi Shengqi Biotechnology Co., Ltd., beetroot red.

[0041] Example 1

[0042] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0043] Polyethylene glycol polymer (Mn=6000) 85%;

[0044] Sodium sulfate 9.8%;

[0045] Fragrance 3.47%;

[0046] Chitosan oligosaccharide 0.5%;

[0047] ε-Poly-L-lysine 1.0%;

[0048] Citric acid 0.01%;

[0049] Resveratrol 0.2%

[0050] Dye 0.02%.

[0051] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0052] (1) heating the polyethylene glycol polymer to 80° C. until it is completely melted into a viscous liquid;

[0053] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, and stirring at a speed of 300 r / min for 1 h to obtain a mixture;

[0054] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0055] Example 2

[0056] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0057] Polyethylene glycol polymer (Mn=6000) 87%;

[0058] Sodium sulfate 8%;

[0059] Fragrance 2.71%;

[0060] Chitosan oligosaccharide 0.5%;

[0061] ε-polylysine 1.5%;

[0062] Citric acid 0.01%;

[0063] Resveratrol 0.25%

[0064] Dye 0.03%.

[0065] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0066] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0067] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, and stirring at a speed of 200 r / min for 1 h to obtain a mixture;

[0068] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0069] Example 3

[0070] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0071] Polyethylene glycol polymer (Mn=6000) 89%;

[0072] Sodium sulfate 5%;

[0073] Fragrance 3.76%;

[0074] Chitosan oligosaccharide 1.0%;

[0075] ε-Poly-L-lysine 1.0%;

[0076] Citric acid 0.02%;

[0077] Resveratrol 0.2%

[0078] Dye 0.02%.

[0079] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0080] (1) heating the polyethylene glycol polymer to 85° C. until it is completely melted into a viscous liquid;

[0081] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, and starting stirring at a speed of 250 r / min for 1 h to obtain a mixture;

[0082] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0083] Example 4

[0084] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0085] Polyethylene glycol polymer (Mn=6000) 86%;

[0086] Sodium sulfate 6%;

[0087] Fragrance 4.63%;

[0088] Chitosan oligosaccharide 1.5%;

[0089] ε-polylysine 1.5%;

[0090] Citric acid 0.03%;

[0091] Resveratrol 0.3%

[0092] Dye 0.04%.

[0093] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0094] (1) heating the polyethylene glycol polymer to 80° C. until it is completely melted into a viscous liquid;

[0095] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, and stirring at a speed of 200 r / min for 1 h to obtain a mixture;

[0096] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0097] Example 5

[0098] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0099] Polyethylene glycol polymer (Mn=6000) 88%;

[0100] Sodium sulfate 5%;

[0101] Fragrance 3.58%;

[0102] Chitosan oligosaccharide 1.0%;

[0103] ε-polylysine 2.0%;

[0104] Citric acid 0.02%;

[0105] Resveratrol 0.35%

[0106] Dye 0.05%.

[0107] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0108] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0109] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, and stirring at a speed of 300 r / min for 1 h to obtain a mixture;

[0110] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0111] Example 6

[0112] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0113] Polyethylene glycol polymer (Mn = 4000) 86%;

[0114] Sodium sulfate 6%;

[0115] Fragrance 4.53%;

[0116] Chitosan oligosaccharide 1.5%;

[0117] ε-polylysine 1.5%;

[0118] Citric acid 0.03%;

[0119] Resveratrol 0.4%

[0120] Dye 0.04%.

[0121] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0122] (1) heating the polyethylene glycol polymer to 85° C. until it is completely melted into a viscous liquid;

[0123] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, starting stirring at a speed of 250 r / min, and stirring evenly to obtain a mixture;

[0124] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0125] Example 7

[0126] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0127] Polyethylene glycol polymer (Mn=8000) 86%;

[0128] Sodium sulfate 6%;

[0129] Fragrance 4.43%;

[0130] Chitosan oligosaccharide 1.5%;

[0131] ε-polylysine 1.5%;

[0132] Citric acid 0.03%;

[0133] Resveratrol 0.5%

[0134] Dye 0.04%.

[0135] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0136] (1) heating the polyethylene glycol polymer to 85° C. until it is completely melted into a viscous liquid;

[0137] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, starting stirring at a speed of 300 r / min, and stirring evenly to obtain a mixture;

[0138] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0139] Example 8

[0140] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0141] Polyethylene glycol polymer (Mn=6000) 87.5%;

[0142] Sodium sulfate 5%;

[0143] Fragrance 3.93%;

[0144] Chitosan oligosaccharide 1.0%;

[0145] ε-polylysine 2.0%;

[0146] Citric acid 0.02%;

[0147] Resveratrol 0.5%

[0148] Dye 0.05%.

[0149] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0150] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0151] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, and stirring at a speed of 300 r / min for 1 h to obtain a mixture;

[0152] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0153] Comparative Example 1

[0154] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0155] Polyethylene glycol polymer (Mn=6000) 88%;

[0156] Sodium sulfate 5%;

[0157] Fragrance 3.58%;

[0158] Chitosan oligosaccharide 3.35%;

[0159] Citric acid 0.02%;

[0160] Dye 0.05%.

[0161] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0162] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0163] (2) adding sodium sulfate, chitosan oligosaccharide, citric acid, essence and dye to the viscous liquid obtained in step (1) in sequence, and starting stirring at a speed of 300 r / min for 1 h to obtain a mixture;

[0164] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0165] Comparative Example 2

[0166] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0167] Polyethylene glycol polymer (Mn=6000) 88%;

[0168] Sodium sulfate 5%;

[0169] Fragrance 3.58%;

[0170] ε-polylysine 3.35%;

[0171] Citric acid 0.02%;

[0172] Dye 0.05%.

[0173] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0174] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0175] (2) adding sodium sulfate, ε-polylysine, citric acid, essence and dye to the viscous liquid obtained in step (1) in sequence, and starting stirring at a speed of 300 r / min for 1 h to obtain a mixture;

[0176] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0177] Comparative Example 3

[0178] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0179] Polyethylene glycol polymer (Mn=6000) 88%;

[0180] Sodium sulfate 5%;

[0181] Fragrance 3.58%;

[0182] Resveratrol 3.35%;

[0183] Citric acid 0.02%;

[0184] Dye 0.05%.

[0185] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0186] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0187] (2) adding sodium sulfate, resveratrol, citric acid, essence and dye to the viscous liquid obtained in step (1) in sequence, starting stirring at a speed of 300 r / min and stirring for 1 h to obtain a mixture;

[0188] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0189] Comparative Example 4

[0190] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0191] Polyethylene glycol polymer (Mn=6000) 88%;

[0192] Sodium sulfate 5%;

[0193] Fragrance 3.58%;

[0194] Chitosan oligosaccharide 1.35%;

[0195] ε-polylysine 2.0%;

[0196] Citric acid 0.02%;

[0197] Dye 0.05%.

[0198] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0199] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0200] (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, essence and dye to the viscous liquid obtained in step (1) in sequence, and starting stirring at a speed of 300 r / min for 1 h to obtain a mixture;

[0201] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0202] Comparative Example 5

[0203] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0204] Polyethylene glycol polymer (Mn=6000) 88%;

[0205] Sodium sulfate 5%;

[0206] Fragrance 3.58%;

[0207] Chitosan oligosaccharide 3.0%;

[0208] Citric acid 0.02%;

[0209] Resveratrol 0.35%

[0210] Dye 0.05%.

[0211] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0212] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0213] (2) adding sodium sulfate, chitosan oligosaccharide, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, and stirring at a speed of 300 r / min for 1 h to obtain a mixture;

[0214] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0215] Comparative Example 6

[0216] The environmentally friendly antibacterial laundry fragrance beads include the following raw materials in percentage by mass:

[0217] Polyethylene glycol polymer (Mn=6000) 88%;

[0218] Sodium sulfate 5%;

[0219] Fragrance 3.58%;

[0220] ε-polylysine 3.0%;

[0221] Citric acid 0.02%;

[0222] Resveratrol 0.35%

[0223] Dye 0.05%.

[0224] The method for preparing the environmentally friendly antibacterial laundry fragrance beads comprises the following steps:

[0225] (1) heating the polyethylene glycol polymer to 90° C. until it is completely melted into a viscous liquid;

[0226] (2) adding sodium sulfate, ε-polylysine, citric acid, resveratrol, essence and dye to the viscous liquid obtained in step (1) in sequence, starting stirring at a speed of 300 r / min for 1 h to obtain a mixture;

[0227] (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

[0228] Performance Testing

[0229] Sterilization experiment: To test the bactericidal effect of the fragrance beads of the present invention, according to QB / T2738-2012 "Evaluation Method for Antibacterial and Antibacterial Effect of Daily Chemical Products", the fragrance beads of Examples 1-8 and Comparative Examples 1-6 were diluted with distilled water into a 0.5% aqueous solution at room temperature, the sterilization time was 30 minutes, and the strains used were: Bacillus megaterium, Escherichia coli, Staphylococcus aureus, Bacillus subtilis, and Bacillus fluorescens. The sterilization results are shown in Table 1.

[0230] Table 1 Sterilization test results of Examples 1-8 and Comparative Examples 1-6

[0231]

[0232] Comparative Example 1: The ε-polylysine and resveratrol in Example 5 were replaced with chitosan oligosaccharides of equal mass;

[0233] Comparative Example 2: The chitosan oligosaccharide and resveratrol in Example 5 were replaced with ε-polylysine of equal mass;

[0234] Comparative Example 3: The chitosan oligosaccharide and ε-polylysine in Example 5 were replaced with an equal mass of resveratrol;

[0235] Comparative Example 4: The resveratrol in Example 5 was replaced with an equal mass of chitosan oligosaccharide;

[0236] Comparative Example 5: The ε-polylysine in Example 5 was replaced with an equal mass of chitosan oligosaccharide;

[0237] Comparative Example 6: The chitosan oligosaccharide in Example 5 was replaced with an equal mass of ε-polylysine;

[0238] It can be seen from Table 1 that by comparing Comparative Examples 1-6 with the embodiment, compared with the use of resveratrol, chitosan oligosaccharide and ε-polylysine alone or in combination of two, the use of the three together can play a synergistic role and has a better bactericidal effect.

Claims

1. An environmentally friendly antibacterial laundry fragrance bead, characterized in that: The following raw materials are included in the following mass percentages: Polyethylene glycol polymer 85% to 89%; Sodium sulfate 5% to 10%; Fragrance 2.96%~4.93%; Chitosan oligosaccharide 0.5%~1.5%; ε-polylysine 1% to 2%; Citric acid 0.01%~0.03%; Resveratrol 0.2%-0.5%; Dye 0.02%~0.05%.

2. The environmentally friendly antibacterial laundry fragrance beads according to claim 1, characterized in that: Polyethylene glycol polymer is an addition product of ethylene glycol and ethylene oxide.

3. The environmentally friendly antibacterial laundry fragrance beads according to claim 2, characterized in that: The number average molecular weight of polyethylene glycol polymer is 4000-8000.

4. The environmentally friendly antibacterial laundry fragrance beads according to claim 1, characterized in that: The molecular weight of ε-polylysine is between 3600 and 4300.

5. The environmentally friendly antibacterial laundry fragrance beads according to claim 1, characterized in that: The molecular weight of chitosan oligosaccharide is between 350 and 3200.

6. A method for preparing the environmentally friendly antibacterial laundry fragrance beads according to any one of claims 1 to 5, characterized in that: The following steps are involved: (1) heating the polyethylene glycol polymer to 80-90° C. until it is completely melted into a liquid; (2) adding sodium sulfate, chitosan oligosaccharide, ε-polylysine, citric acid, resveratrol, essence and dye to the liquid obtained in step (1), starting stirring at a speed of 200 to 300 r / min, and stirring evenly to obtain a mixture; (3) The mixed material is conveyed to a granulator for granulation to obtain the environmentally friendly antibacterial laundry fragrance beads.

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