CN115746964A

CN115746964A - Hospital soft instrument surgical gown detergent and preparation method thereof

Info

Publication number: CN115746964A
Application number: CN202210994472.8A
Authority: CN
Inventors: 韩德冰
Original assignee: Dalian Greater Biotechnology Co ltd
Current assignee: Dalian Greater Biotechnology Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-03-07

Abstract

The invention belongs to the technical field of washing of hospital soft instrument surgical gowns, and discloses a detergent for hospital soft instrument surgical gowns and a preparation method thereof. The weight percentage of the contained raw materials is as follows: anionic surfactant: 15-20%, antistatic agent: 3-6%, triethanolamine citrate salt: 5-8%, complex enzyme: 1.5 to 2.5%, polyvinyl alcohol: 6-9%, hydrogen peroxide solution: 18-24% and softened water: 30.5 to 51.5 percent. Utilize anion surface active agent, antistatic agent, biological enzyme, chelator, bleaching disinfectant's synergism, adopt low basicity washing, effectively get rid of common dirt such as oil stain, sweat stain, blood stain, medicine stain on the soft apparatus surgical gown, prevent effectively that dacron surgical gown from because the static adsorption dirt that the friction produced in the washing process, the washing is disinfected to the fabric simultaneously, soft apparatus surgical gown after the washing has the sense of stiffness, bright-colored sense, reduce the pollution degree of soft apparatus surgical gown in the use simultaneously, extension fabric life.

Description

Hospital soft instrument surgical gown detergent and preparation method thereof

Technical Field

The invention belongs to the technical field of washing of hospital soft instrument surgical gowns, and relates to a detergent for hospital soft instrument surgical gowns and a preparation method thereof.

Background

In 2018, 8 and 1, the classification of medical instruments is implemented, the category of medical soft instruments is defined, and the medical soft instruments are classified into II types of medical instruments. In 6.2018, basic standards (trial) of medical disinfection supply center, soft instruments refer to infection control instruments which can block water, block bacteria and ventilate, are wearable and foldable, have a bidirectional protection function and meet the classification catalogue of surgical instruments, such as surgical gowns and surgical drapes, and do not contain common medical textiles. Aiming at the novel linen of the soft instrument surgical gown, no special product is available for hospital washing at present, the traditional laundry detergent, a builder, an emulsifier, a bleaching agent and other products are mainly used for washing at the same time, the types of the added detergents are more, the using functions of the products are repeated, and the alkalinity is stronger during washing. The soft instrument surgical gown is mainly made of terylene, the damage rate of a traditional product to terylene fabric in long-term high-temperature washing is high, the fabric has the phenomenon of fading in the washing process, the damaged and faded fabric cannot be reused, the average washing frequency of the fabric is reduced, the rejection rate is high, the service life of the fabric is influenced, static electricity is easily generated due to washing friction of the terylene fabric, stains are adsorbed to re-contaminate the surface of the fabric, the backwashing rate is high, the discharged wastewater contains high alkalinity, and the environment is greatly polluted.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a detergent for hospital soft instrument surgical gowns and a preparation method thereof, and aims to combine the characteristics of materials and common stains of the soft instrument surgical gowns, utilize the synergistic effect of an anionic surfactant, an antistatic agent, a biological enzyme, a chelating agent and a bleaching disinfectant, effectively remove common stains such as oil stains, sweat stains, blood stains, drug stains and the like on the soft instrument surgical gowns by adopting low-alkalinity washing, effectively prevent electrostatic adsorption stains generated by friction of the polyester surgical gowns in the washing process, disinfect and sterilize fabrics during washing, prevent bacterial infection caused by unclean fabric washing in the using process, ensure that the washed soft instrument surgical gowns have a stiff and bright feeling, reduce the pollution degree of the soft instrument surgical gowns in the using process and prolong the service life of the fabrics.

The above purpose of the invention is realized by the following technical scheme:

the hospital soft instrument surgical gown detergent comprises the following raw materials in percentage by mass: anionic surfactant: 15-20%, antistatic agent: 3-6%, triethanolamine citrate salt: 5-8%, complex enzyme: 1.5 to 2.5%, polyvinyl alcohol: 6-9%, hydrogen peroxide solution: 18-24% and softened water: 30.5 to 51.5 percent.

The anionic surfactant is more than two of fatty acid methyl ester ethoxy compound sodium sulfonate, mixture of coconut acid triethanolamine salt and potassium salt, fatty alcohol-polyoxyethylene ether sodium sulfate and secondary alkyl sodium sulfonate.

The coconut oleic acid triethanolamine salt and potassium salt mixture is a self-synthesized mixture raw material of coconut oleic acid, triethanolamine and potassium hydroxide under specific process conditions. The specific process comprises the following steps: adding water and potassium hydroxide into a heat-conducting oil heating stirring tank, heating to 80 ℃, adding coconut oil acid, keeping the temperature at 80 ℃, reacting for 15 minutes, adding triethanolamine, heating to 90 ℃, keeping the temperature, continuing to react for 60 minutes, and detecting the pH value (1% aqueous solution) by an acidimeter to be 7.0-8.0.

The citric acid triethanolamine salt is a raw material for self-synthesis of citric acid and triethanolamine under specific process conditions. The specific process comprises the following steps: adding triethanolamine into heat-conducting oil heating stirring tank, heating to 90 deg.C, adding citric acid, maintaining the temperature at 90 deg.C, reacting for 60 min, and measuring pH (1% water solution) with acidimeter to 5.5-6.5.

The hydrogen peroxide solution is a solution with 27.5-35% of hydrogen peroxide content.

The softened water is filtered by an active carbon tank by adopting tap water, iron is removed by a manganese sand tank, calcium ions and magnesium ions are removed by a cationic resin tank, the pH value range of the softened water after detection treatment is 6.0-7.0, and the total hardness (calculated by calcium carbonate) is less than or equal to 10ppm.

The preparation method of the detergent for the hospital soft instrument surgical gown comprises the following specific steps:

s1, adding water and potassium hydroxide into a heat-conducting oil heating stirring tank, heating to 80 ℃, adding coconut oil acid, keeping the temperature at 80 ℃, reacting for 15 minutes, adding triethanolamine, heating to 90 ℃, keeping the temperature, continuing to react for 60 minutes, and detecting the pH value (1% aqueous solution) range at 7.0-8.0 by an acidimeter to obtain mother liquor A for later use.

S2, adding triethanolamine into a heat-conducting oil heating stirring tank, heating to 90 ℃, adding citric acid, keeping the temperature at 90 ℃, reacting for 60 minutes, and detecting the pH value (1% aqueous solution) range at 5.5-6.5 by an acidimeter to obtain mother liquor B for later use.

And S3, adding water and polyvinyl alcohol into the heat conducting oil heating stirring tank, heating and keeping the temperature at 95 ℃, and dissolving for 120 minutes to obtain mother liquor C for later use.

S4, adding room-temperature softened water into the stirring kettle, and sequentially adding the fatty acid methyl ester ethoxy compound sodium sulfonate, the fatty alcohol-polyoxyethylene ether sodium sulfate, the secondary alkyl sodium sulfonate and the antistatic agent under the stirring state, stirring and dissolving uniformly.

S5, sequentially adding the mother liquor A and the mother liquor B into the stirring kettle, and stirring to be uniform.

S6, adding the multi-element complex enzyme and the mother liquor C into the stirring kettle for multiple times when the temperature of the materials in the stirring kettle is 40 ℃, stirring the materials until the materials are uniform, and detecting the pH value (1% aqueous solution) of the materials in the stirring kettle by an acidimeter to be 6.0-7.0.

S7, adding a hydrogen peroxide solution into the materials in the stirring kettle at the temperature of 30 ℃, and stirring the materials uniformly.

S8, filtering the materials in the stirring kettle through a 200-mesh filter screen to obtain the hospital soft instrument surgical gown detergent.

Compared with the prior art, the invention has the beneficial effects that:

1. the detergent has neutral pH value, does not contain alkaline substances or nonionic surfactants, protects polyester fabric fibers from being damaged and fadeless, and prolongs the service life of the fabric;

2. has multiple functions of washing, stain removing and sterilizing, has strong washing, stain removing and stain removing capability, and can be used for treating special stains such as medicine stain, blood stain, sweat stain, rust stain and human body stainThe removal capacity of stains, oil stains and other stains is strong, the backwashing rate is controlled to be below 2%, and the multiple washing utilization rate of the fabric is improved. Meanwhile, the washing process is used for sterilizing and disinfecting the fabrics, and the total bacterial colony number of the washed clean fabrics is less than or equal to 200CFU/100cm ² ；

3. The washing use temperature is 50 ℃, the damage of high-temperature washing to the soft instrument surgical gown is avoided, meanwhile, the heating energy of a washing machine is saved, the washing time is shortened, and the energy and labor cost are saved;

4. good biodegradation, no phosphate and no environmental pollution.

The invention provides a detergent for soft instrument surgical gowns, which has the advantages that the washing temperature is 50 ℃, alkaline substances are not contained, the removing capability of the main stain stains of the soft instrument surgical gown is strong, the static adsorption stain generated by polyester fiber friction is overcome, a protective film is formed after fabrics are washed to prevent the stains in the using process, the fabrics are disinfected and sterilized during the washing, the service life of the fabrics is prolonged, the bacterial infection caused in the using process due to the unclean fabrics is prevented, the detergent does not contain phosphate, does not pollute the environment, and is safe and environment-friendly.

Detailed Description

The invention is described in more detail below with reference to specific examples, without limiting the scope of the invention. Unless otherwise specified, the experimental methods adopted by the invention are all conventional methods, and experimental equipment, materials, reagents and the like used in the experimental method can be obtained from commercial sources. The sodium fatty acid methyl ester ethoxy compound sulfonate in the embodiment is FMES of Shanghai Xihe Fine chemical Co., ltd; the sodium polyoxyethylene fatty alcohol sulfate is AES sodium salt of Zhejiang Zanyu science and technology Limited; the secondary alkyl sodium sulfonate is SAS-60 of Clarian chemical industry Co., ltd; the antistatic agent is PE939 of Shanghai Sangdi Fine chemical research institute, inc.; the multi-element complex enzyme is a rhyme 200L series or a rhyme 300L series liquid complex enzyme of the Denmark Nuoweixin company; the polyvinyl alcohol is PVA088-20 sheet in Shanghai petrochemical form.

Example 1

The hospital soft instrument surgical gown detergent; the components in percentage by mass are as follows:

the preparation method of the detergent for the hospital soft instrument surgical gown comprises the following steps:

1. adding water and potassium hydroxide into a heat conducting oil heating stirring tank, heating to 80 ℃, adding coconut oil acid, keeping the temperature at 80 ℃, reacting for 15 minutes, adding triethanolamine, heating to 90 ℃, keeping the temperature, continuing to react for 60 minutes, and detecting the pH value (1% aqueous solution) by an acidimeter to be 7.0-8.0 to obtain mother liquor A for later use.

2. Adding triethanolamine into heat-conducting oil heating stirring tank, heating to 90 deg.C, adding citric acid, maintaining the temperature at 90 deg.C, reacting for 60 min, and measuring pH (1% water solution) with acidimeter to 5.5-6.5 to obtain mother liquor B.

3. Adding water and polyvinyl alcohol into the heat-conducting oil heating stirring tank, heating and keeping the temperature at 95 ℃, and dissolving for 120 minutes to obtain mother liquor C for later use.

4. And adding room-temperature softened water into the stirring kettle, and sequentially adding the fatty acid methyl ester ethoxy compound sodium sulfonate, the fatty alcohol-polyoxyethylene ether sodium sulfate, the secondary alkyl sodium sulfonate and the antistatic agent under the stirring state, stirring and dissolving uniformly.

5. And sequentially adding the mother liquor A and the mother liquor B into the stirring kettle, and stirring the mixture until the mixture is uniform.

6. When the temperature of the materials in the stirring kettle is 40 ℃, adding the multi-element complex enzyme and the mother liquor C into the stirring kettle for multiple times, stirring the materials until the materials are uniform, and detecting the pH value (1% aqueous solution) of the materials in the stirring kettle by an acidimeter to be 6.0-7.0.

7. Adding hydrogen peroxide solution into the stirred tank at the temperature of 30 ℃, and stirring the mixture evenly.

8. And filtering the materials in the stirring kettle by a 200-mesh filter screen to obtain the hospital soft instrument surgical gown detergent.

Example 2

The hospital soft instrument surgical gown detergent; the mass percentage composition is as follows:

1. adding water and potassium hydroxide into a heat-conducting oil heating stirring tank, heating to 80 ℃, adding coconut oil acid, keeping the temperature at 80 ℃, reacting for 15 minutes, adding triethanolamine, heating to 90 ℃, keeping the temperature, continuing to react for 60 minutes, and detecting the pH value (1% aqueous solution) by an acidimeter to be 7.0-8.0 to obtain mother liquor A for later use.

4. And adding room-temperature softened water into the stirring kettle, and sequentially adding the sodium fatty acid methyl ester ethoxy compound sulfonate, the sodium fatty alcohol-polyoxyethylene ether sulfate and the antistatic agent under the stirring state, stirring and dissolving uniformly.

6. Adding the multi-element complex enzyme and the mother liquor C into the stirring kettle for multiple times at 40 ℃, stirring until the mixture is uniform, and detecting the pH value (1% aqueous solution) of the material in the stirring kettle by an acidimeter to be 6.0-7.0.

Example 3

the preparation method of the detergent for the hospital soft instrument surgical gown specifically comprises the following steps:

4. Adding room temperature softened water into a stirring kettle, sequentially adding the sodium fatty acid methyl ester ethoxy compound sulfonate, the secondary alkyl sulfonate and the antistatic agent under stirring, and stirring and dissolving uniformly.

8. And filtering the materials in the stirring kettle through a 200-mesh filter screen to obtain the hospital soft instrument surgical gown detergent.

Comparative example 1

The hospital soft instrument surgical gown detergent; the preparation method is the same as that of example 2; the mass percentage composition is as follows:

comparative example 2

comparative example 3

The hospital soft instrument operating clothes detergent; the preparation method is the same as that of example 2; the mass percentage composition is as follows:

comparative example 4

comparative example 5

comparative example 6

comparative example 7

comparative example 8

comparative example 9

comparative example 10

comparative example 11

the detergents prepared in examples 1 to 3 and comparative examples 1 to 11 were subjected to physical analysis and detection; the results are shown in table 1:

TABLE 1 analysis and detection result table

The detergents prepared in examples 1 to 3, comparative example 4 and comparative examples 8 to 11 were subjected to a stain removal test at 50 ℃; the results are shown in table 2:

TABLE 2 decontamination results table

The detergent prepared in example 2 was applied to a medical textile laundry factory in Nanjing, and the statistical test results of the washing and rewashing rates are shown in Table 3.

TABLE 3 backwash rate results table

The invention increases the mutual dissolution speed of the materials of the product and the stability performance of the product at normal temperature by limiting the surfactant and the specific concentration thereof, and can be obtained from tables 1 to 3; meanwhile, the research of the invention finds that the existing laundry detergents (comparative examples 1-4) have weak detergency and poor wetting capability on protein dirty cloth and sebum dirty cloth, the wetting time of 0.2% solution on polyester cloth strips is 58 seconds, and the wetting time of 0.2% solution on cotton cloth strips is 14 seconds; the heat stability is problematic, and the product is not clear and has turbidity when the stock solution is placed at 40 ℃ for 24 hours and is recovered to room temperature. Compared with comparative examples 4-8, the formula of the detergent in comparative example 9 provided by the invention ensures that the pH of the product is less than 7 by adding triethanolamine citrate, and the mutual dissolution speed of materials and the stability of the product at normal temperature are synergistically enhanced while the rust removing capability of the product is increased; the wetting time of the 0.2% solution to the polyester cloth strip is 36 seconds, and the wetting time of the 0.2% solution to the cotton cloth strip is 12 seconds; thermal stability, the stock solution is placed for 24 hours at 40 ℃, and the product is clear after the stock solution is restored to room temperature. The rotary viscosity of the product is controlled between 200 and 300 centipoises at 20 ℃, and the viscosity is low, so that the product can be automatically pumped into a washing machine by a peristaltic pump of a distributor. According to the formula of the comparative example 10, the biological complex enzyme is added, so that the detergency of protein and sebum is improved, the biological enzyme plays a synergistic effect with the surfactant, the detergency of carbon black polluted cloth is improved, and the wetting time of the polyester cloth strips is reduced to 31 seconds. According to the detergent disclosed by the preferred embodiment 2, the consumption of triethanolamine citrate is increased, so that the mutual dissolution speed of materials is ensured, the stability of a product at normal temperature is improved, and the viscosity of the product is cooperatively ensured; the best effect is achieved aiming at the detergency of carbon black dirty cloth, protein dirty cloth and sebum dirty cloth; wetting capacity, wherein the wetting time of the 0.2% solution to the polyester cloth strip is 29 seconds, the effect within 30 seconds is expected, and the wetting time of the 0.2% solution to the cotton cloth strip is 10 seconds; thermal stability, the stock solution is placed for 24 hours at 40 ℃, and the product is clear after the stock solution is restored to room temperature. Through the analysis of novel on-site washing data of the operating gown for more than 2 months, the backwashing rate is less than 2%, the evaluation of the color fastness to washing is 4, the longitude and latitude tensile strength test of 50 times of fabric washing is reduced by 2.0-3.5%, and the washing effect is superior to the washing effect of various products.

The embodiments described above are merely preferred embodiments of the invention, rather than all possible embodiments of the invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims

1. The hospital soft instrument surgical gown detergent is characterized by comprising the following raw materials in percentage by mass: anionic surfactant: 15-20%, antistatic agent: 3-6%, triethanolamine citrate salt: 5-8%, multi-element complex enzyme: 1.5 to 2.5%, polyvinyl alcohol: 6-9%, hydrogen peroxide solution: 18-24% and softened water: 30.5 to 51.5 percent;

the anionic surfactant is more than two of fatty acid methyl ester ethoxy compound sodium sulfonate, mixture of coconut acid triethanolamine salt and sylvite, fatty alcohol-polyoxyethylene ether sodium sulfate and secondary alkyl sodium sulfonate;

the coconut oleic acid triethanolamine salt and potassium salt mixture is a self-synthesized mixture raw material of coconut oleic acid, triethanolamine and potassium hydroxide under specific process conditions; the specific process comprises the following steps: adding water and potassium hydroxide into a heat-conducting oil heating stirring tank, heating to 80 ℃, adding coconut oil acid, keeping the temperature at 80 ℃, reacting for 15 minutes, adding triethanolamine, heating to 90 ℃, keeping the temperature, continuing to react for 60 minutes, and detecting the pH value by an acidimeter to be 7.0-8.0;

the citric acid triethanolamine salt is a raw material for self-synthesis of citric acid and triethanolamine under specific process conditions; the specific process comprises the following steps: adding triethanolamine into heat-conducting oil heating stirring tank, heating to 90 deg.C, adding citric acid, maintaining the temperature at 90 deg.C, reacting for 60 min, and measuring pH (1% water solution) with acidimeter to 5.5-6.5.

2. The detergent for hospital soft equipment surgical gowns as set forth in claim 1, characterized in that said hydrogen peroxide solution is a solution having a hydrogen peroxide content of 27.5% -35%.

3. The detergent for hospital soft instrument surgical gowns as claimed in claim 1, wherein the softened water is filtered by an active carbon tank through tap water, iron is removed by a manganese sand tank, calcium ions and magnesium ions are removed by a cationic resin tank, the pH value of the softened water after detection treatment ranges from 6.0 to 7.0, and the total hardness is less than or equal to 10ppm.

4. The detergent for the surgical gowns of the hospital soft instruments as claimed in claim 1, which is characterized by comprising the following components in percentage by mass:

5. the detergent for the hospital soft instrument surgical gown as claimed in claim 1, which is characterized by comprising the following components in percentage by mass:

6. the detergent for the surgical gowns of the hospital soft instruments as claimed in claim 1, which is characterized by comprising the following components in percentage by mass:

7. the preparation method of the detergent for the hospital soft instrument surgical gown as claimed in claim 1, which is characterized by comprising the following specific steps of:

s1, adding water and potassium hydroxide into a heat-conducting oil heating stirring tank, heating to 80 ℃, adding coconut oil acid, keeping the temperature at 80 ℃, reacting for 15 minutes, adding triethanolamine, heating to 90 ℃, keeping the temperature, continuing to react for 60 minutes, and detecting the pH value range by an acidimeter to be 7.0-8.0 to obtain mother liquor A for later use;

s2, adding triethanolamine into a heat conducting oil heating stirring tank, heating to 90 ℃, adding citric acid, keeping the temperature at 90 ℃, reacting for 60 minutes, and detecting the pH value (1% aqueous solution) range to 5.5-6.5 by an acidimeter to obtain mother liquor B for later use;

s3, adding water and polyvinyl alcohol into a heat conducting oil heating stirring tank, heating and keeping the temperature at 95 ℃, and dissolving for 120 minutes to obtain mother liquor C for later use;

s4, adding room-temperature softened water into the stirring kettle, and sequentially adding the fatty acid methyl ester ethoxy compound sodium sulfonate, the fatty alcohol-polyoxyethylene ether sodium sulfate, the secondary alkyl sodium sulfonate and the antistatic agent under the stirring state, stirring and dissolving uniformly;

s5, sequentially adding the mother liquor A and the mother liquor B into the stirring kettle, and stirring uniformly;

s6, adding the multi-element complex enzyme and the mother liquor C into the stirred tank for multiple times at 40 ℃, stirring uniformly, and detecting the pH value range of the materials in the stirred tank by an acidimeter to be 6.0-7.0;

s7, adding a hydrogen peroxide solution into the materials in the stirring kettle at the temperature of 30 ℃, and stirring uniformly;