阅读说明：本技术 一种银离子长效杀菌校服的制备方法及其应用 (Preparation method and application of silver ion long-acting sterilization school uniform ) 是由 周慕妍 周志才 周志茹 于 2021-01-22 设计创作，主要内容包括：本发明公开了一种银离子长效杀菌校服的制备方法,步骤包含以下几步：(1)采用现有市售的校服；(2)首先配置预处理溶液20～30重量份并且搅拌36～48小时；之后按照预定量称取离子溶液5～15重量份、助剂2～6重量份、消泡剂1～2重量份、水40～50重量份,并将上述原料放入搅拌机中,混合搅拌20～60分钟,制得喷涂液备用；(3)通过喷涂设备先将预处理溶液喷涂在校服的面料表面,喷涂完毕后进行烘干处理,预处理完毕；之后通过喷涂设备将喷涂液喷涂到校服的面料的内外两面,喷涂完毕后进行烘干处理；(4)烘干完成后,将校服进行水洗,之后自然晾干,既得所需产品。制备的校服具有优异抗菌性、抗菌稳定性、阻燃性和亲水吸湿排汗性,适宜在纺织品领域推广,具有广阔的发展前景。(The invention discloses a preparation method of a silver ion long-acting sterilization school uniform, which comprises the following steps: (1) adopting the prior school uniform sold in the market; (2) firstly, preparing 20-30 parts by weight of pretreatment solution and stirring for 36-48 hours; then weighing 5-15 parts by weight of ionic solution, 2-6 parts by weight of auxiliary agent, 1-2 parts by weight of defoaming agent and 40-50 parts by weight of water according to a predetermined amount, putting the raw materials into a stirrer, and mixing and stirring for 20-60 minutes to prepare spraying liquid for later use; (3) spraying the pretreatment solution on the surface of the fabric of the school uniform by spraying equipment, and drying after the spraying is finished, wherein the pretreatment is finished; spraying the spraying liquid on the inner surface and the outer surface of the fabric of the school uniform by using spraying equipment, and drying after the spraying is finished; (4) and after drying, washing the school uniform with water, and naturally airing to obtain the required product. The prepared school uniform has excellent antibacterial property, antibacterial stability, flame retardance and hydrophilic moisture absorption and sweat releasing property, is suitable for being popularized in the field of textiles, and has wide development prospect.)

1. A preparation method of a silver ion long-acting sterilization school uniform is characterized by comprising the following steps: the method comprises the following steps: (1) adopting the prior school uniform sold in the market; (2) firstly, preparing 20-30 parts by weight of pretreatment solution and stirring for 36-48 hours; then weighing 5-15 parts by weight of ionic solution, 2-6 parts by weight of auxiliary agent, 1-2 parts by weight of defoaming agent and 40-50 parts by weight of water according to a predetermined amount, putting the raw materials into a stirrer, and mixing and stirring for 20-60 minutes to prepare spraying liquid for later use; (3) spraying the pretreatment solution on the surface of the fabric of the school uniform by spraying equipment, and drying after the spraying is finished, wherein the pretreatment is finished; spraying the spraying liquid on the inner surface and the outer surface of the fabric of the school uniform by using spraying equipment, and drying after the spraying is finished; (4) and after drying, washing the school uniform with water, and naturally airing to obtain the required product.

2. The preparation method of the silver ion long-acting bactericidal school uniform according to claim 1, characterized in that: the school uniform is made of at least one of terylene, acrylic fibers, nylon and flax.

3. The preparation method of the silver ion long-acting bactericidal school uniform according to claim 2, characterized in that: the ionic solution is electrolytic silver ion solution.

4. The preparation method of the silver ion long-acting bactericidal school uniform according to claim 3, characterized in that: the concentration of the electrolytic silver ion solution is 20-30 ppm.

5. The preparation method of the silver ion long-acting bactericidal school uniform according to claim 4, characterized in that: the pretreatment solution is dopamine hydrochloride solution.

6. The preparation method of the silver ion long-acting bactericidal school uniform according to claim 5, characterized in that: the auxiliary agent is at least one of ethylidene norbornene, cyclic phosphate organic compound, brominated polystyrene and liquid ammonium polyphosphate.

7. The preparation method of the silver ion long-acting bactericidal school uniform according to claim 6, characterized in that: the auxiliary agent is ethylidene norbornene.

8. The preparation method of the silver ion long-acting bactericidal school uniform according to claim 7, characterized in that: the drying temperature is 60-70 ℃; the drying time is 60-100 minutes.

9. The preparation method of the silver ion long-acting bactericidal school uniform according to claim 8, characterized in that: the washing time is 10-20 minutes.

10. The application of the preparation method of the silver ion long-acting bactericidal school uniform according to claim 9 is characterized in that: comprises the application of the preparation method in the preparation process of bacteriostatic uniform products.

Technical Field

The invention relates to the field of textiles, in particular to a preparation method and application of a silver ion long-acting sterilization school uniform.

Background

Textile products are seen everywhere in our lives, and are widely used in both domestic and public places. The raw materials of textile products are natural fibers such as pure cotton fibers, silk fibers and fibrilia, or artificial fibers such as polyester fibers and polyamide fibers, the textiles bring comfort to people and great hidden dangers to the safety of people, and particularly, the textiles are directly contacted with people for a long time as clothes, and the safety and the cleanness of the textiles are more easily concerned by people.

In the using process of clothes, micro-dust and impurities in the environment are easily adsorbed, so that a large number of microbes such as bacteria are bred, the microbes can change the performances of textiles, such as appearance, mechanical properties and the like, some of the microbes can cause diseases when contacting with people, the health of people is endangered, and the antibacterial performance of school clothes is paid more attention. Because the students are all minors, the body resistance and the immunity of the students are not perfect compared with that of adults, and diseases and health hazards are more easily caused by the invasion of clothes breeding bacteria. The antibacterial fabric has the advantages of blocking disease propagation, keeping clean and sanitary, maintaining the performance of the fabric and the like, and has wide application prospect. The fabric with excellent antibacterial performance is obtained, and the key point is to select an excellent antibacterial agent. Inorganic antibacterial agents have the advantages of sustained release, long-acting property, heat resistance, safety, universality, processability and the like, and are increasingly favored by people. Therefore, more and more antibacterial clothes are coming out.

However, the inorganic antibacterial agents in the prior art are mainly nano-silver antibacterial agents, which may not be suitable for people with sensitive skin although having good antibacterial performance, and may feel stiff due to the presence of fine nanoparticles when used next to the skin and may cause allergy; meanwhile, because the compatibility between the nano-silver antibacterial agent and the fabric base material is poor, the nano-silver antibacterial agent is easy to seep from the fabric base material to cause falling off in the long-term use process, and finally the stability of the antibacterial performance of the fabric is poor.

In addition, in recent years, the number of fires caused by textiles in various countries in the world has increased, and the flame retardant performance of clothes has once again entered the field of view of the public. How to effectively combine the antibacterial property and the flame retardancy of clothes is also a hot spot of research in the textile industry.

Therefore, it is a significant task to develop a school uniform with excellent antibacterial performance, good human body safety, long-term stable antibacterial performance and excellent flame retardant performance.

Disclosure of Invention

In order to solve the above problems, the first aspect of the present invention provides a method for preparing a silver ion long-acting bactericidal school uniform, which comprises the following steps: (1) adopting the prior school uniform sold in the market; (2) firstly, preparing 20-30 parts by weight of pretreatment solution and stirring for 36-48 hours; then weighing 5-15 parts by weight of ionic solution, 2-6 parts by weight of auxiliary agent, 1-2 parts by weight of defoaming agent and 40-50 parts by weight of water according to a predetermined amount, putting the raw materials into a stirrer, and mixing and stirring for 20-60 minutes to prepare spraying liquid for later use; (3) spraying the pretreatment solution on the surface of the fabric of the school uniform by spraying equipment, and drying after the spraying is finished, wherein the pretreatment is finished; spraying the spraying liquid on the inner surface and the outer surface of the fabric of the school uniform by using spraying equipment, and drying after the spraying is finished; (4) and after drying, washing the school uniform with water, and naturally airing to obtain the required product.

As a preferred scheme, the school uniform is made of at least one of terylene, acrylon, nylon and flax

As a preferable mode, the ionic solution is an electrolytic silver ion solution.

Preferably, the concentration of the electrolytic silver ion solution is 20-30 ppm.

As a preferred embodiment, the pretreatment solution is dopamine hydrochloride solution.

As a preferable scheme, the auxiliary agent is at least one of ethylidene norbornene, cyclic phosphate organic compound, brominated polystyrene and liquid ammonium polyphosphate.

As a preferable scheme, the auxiliary agent is ethylidene norbornene.

As a preferable scheme, the temperature of the drying treatment is 60-70 ℃; the drying time is 60-100 minutes.

Preferably, the washing time is 10 to 20 minutes.

The second aspect of the invention comprises the application of the preparation method in the preparation process of antibacterial school uniform and flame-retardant school uniform products.

Has the advantages that:

1. the school uniform in the application of the invention obtains excellent antibacterial performance by spraying the electrolytic silver ion solution, can exist on the school uniform fabric for a long time without deterioration because of high content of the electrolytic silver ions and difficult falling, and can enhance the binding force of the silver ions and the surface of the fabric under the synergistic action of the electrolytic silver ion solution and the dopamine hydrochloride solution, so that the school uniform obtains long-acting sterilization capability, has excellent long-term antibacterial property and good skin affinity.

2. According to the school uniform, the flame retardant auxiliary and the dopamine hydrochloride solution are synergistic, so that the fabric can be effectively shrunk, the hydrophilicity of the school uniform fabric is enhanced, and the flame retardant property of the fabric is further improved.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.

In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.

In order to solve the above problems, the first aspect of the present invention provides a method for preparing a silver ion long-acting bactericidal school uniform, which comprises the following steps: (1) adopting the prior school uniform sold in the market; (2) firstly, preparing 20-30 parts by weight of pretreatment solution and stirring for 36-48 hours; then weighing 5-15 parts by weight of ionic solution, 2-6 parts by weight of auxiliary agent, 1-2 parts by weight of defoaming agent and 40-50 parts by weight of water according to a predetermined amount, putting the raw materials into a stirrer, and mixing and stirring for 20-60 minutes to prepare spraying liquid for later use; (3) spraying the pretreatment solution on the surface of the fabric of the school uniform by spraying equipment, and drying after the spraying is finished, wherein the pretreatment is finished; spraying the spraying liquid on the inner surface and the outer surface of the fabric of the school uniform by using spraying equipment, and drying after the spraying is finished; (4) and after drying, washing the school uniform with water, and naturally airing to obtain the required product.

In some preferred embodiments, the school uniform is made of at least one of terylene, acrylon, nylon and flax

In some preferred embodiments, the ionic solution is an electrolytic silver ion solution.

In some preferred embodiments, the concentration of the electrolytic silver ion solution is 20 to 30 ppm.

In some preferred embodiments, the concentration of the electrolytic silver ion solution is 25 ppm.

In some preferred embodiments, the pretreatment solution is a dopamine hydrochloride solution.

In some preferred embodiments, the solvent of the dopamine hydrochloride solution is Tris-buffer.

In some preferred embodiments, the Tris-buffer solvent has a pH of 8.5 to 8.8.

In some preferred embodiments, the dopamine hydrochloride solution contains 1-3 wt% of dopamine hydrochloride.

In some preferred embodiments, the dopamine hydrochloride solution has a dopamine hydrochloride content of 2 wt%.

In some preferred embodiments, the auxiliary agent is at least one of ethylidene norbornene, cyclic phosphate organic compound, brominated polystyrene, and liquid ammonium polyphosphate.

In some preferred embodiments, the adjuvant is ethylidene norbornene (CAS: 16219-75-3).

In the application of the invention, the performances of antibacterial stability, skin affinity, moisture absorption and sweat releasing performance, flame retardance and the like of school uniform are effectively improved through the synergistic effect of the electrolytic silver ion solution, the dopamine hydrochloride pretreatment solution and the ethylidene norbornene.

The applicant speculates that: the dopamine hydrochloride is easily oxidized and polymerized into poly-dopamine on the surface of the uniform fabric subjected to pretreatment spraying and long-time high-temperature drying, and a bonding film layer is formed on the surface of the fabric. The bonding tension of the bonding layer can shrink the surface fibers of the fabric, the compactness and the compressibility of the fabric are improved, meanwhile, large fiber grooves and high-roughness surfaces are generated, when moisture contacts with the surface, a hydration layer is easily formed on the surface, and the hydrophilic permeability of the fabric is enhanced; meanwhile, the surface of the fiber fine groove high-roughness fabric can clamp water molecules in the air by using the fine groove and fix the water molecules on the surface of the fiber for a long time, when the fabric is heated at high temperature, ethylidene norbornene is decomposed to release carbon dioxide in a heat absorption manner, so that the concentration of combustible gas around the fabric can be diluted to be below the combustion limit or the oxygen in the central part of flame is insufficient, the synergistic effect of the combustible gas and the water molecules in the air clamped by the fine groove effectively performs a flame-retardant effect, and the flame-retardant reliability of the school uniform is greatly improved.

The electrolytic silver ion solution has sterilizing performance which is difficult to compare with the nano silver solution, and the firmness of the silver ions can be effectively improved by combining the electrolytic silver ions with higher concentration with the bonding film layer on the surface. And the potential safety hazard brought by the nano silver ions can be effectively avoided by using the electrolytic silver ions. Different from the harmlessness of silver ions to human bodies, the nano silver is not in an ionic form, and due to the difference of carriers, after the fine nano silver permeates into the skin, the nano silver has potential harmfulness and influences the affinity of school uniform to the skin, while the use of electrolytic silver ions effectively avoids the problem and effectively improves the skin affinity of the school uniform.

In some preferred embodiments, the defoaming agent is at least one of polymethylsiloxane, higher aliphatic alcohol, and polysilicyl ester.

In some preferred embodiments, the temperature of the drying treatment is 60-70 ℃; the drying time is 60-100 minutes.

In some preferred embodiments, the time of the water washing is 10 to 20 minutes.

The second aspect of the invention comprises the application of the preparation method in the preparation process of antibacterial school uniform and flame-retardant school uniform products.

The electrolytic silver ion solution in the present invention may be a commercially available electrolytic silver ion solution product having a concentration of 25ppm, for example, that is manufactured and sold by japan oasis corporation.

Dopamine hydrochloride in the present invention can be commercially available, for example, the dopamine hydrochloride product sold by the alatin reagent company.

The Tris-buffer solvent of the present invention may be a commercially available Tris-buffer solvent product, for example, as manufactured and sold by Nanjing research Biotechnology Ltd.

Examples

The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to all of the examples. The starting materials of the present invention are all commercially available unless otherwise specified.

Example 1

Example 1 in a first aspect, a method for preparing a silver ion long-acting bactericidal school uniform is provided, which comprises the following steps (in parts by weight): (1) adopting the prior school uniform sold in the market; (2) firstly, preparing 22 parts of 2 wt% dopamine hydrochloride solution and stirring for 45 hours; then weighing 10 parts by weight of 25ppm electrolytic silver ion solution, 4 parts by weight of ethylidene norbornene, 2 parts by weight of polymethylsiloxane and 45 parts by weight of water according to a preset amount, putting the raw materials into a stirrer, and mixing and stirring for 40 minutes to prepare a spraying liquid for later use; (3) spraying a dopamine hydrochloride solution on the surface of the fabric of the school uniform by using spraying equipment, and drying at 65 ℃ for 100 minutes after the spraying is finished, so that the pretreatment is finished; spraying the spraying liquid on the inner surface and the outer surface of the fabric of the school uniform by using spraying equipment, and drying for 70 minutes at 60 ℃ after the spraying is finished; (4) and after drying, washing the school uniform for 15 minutes, and naturally airing to obtain the required product.

In this embodiment, the school uniform is made of terylene.

The electrolytic silver ion solution in the present example is a 25ppm electrolytic silver ion solution product manufactured and sold by japan oasis corporation.

In this example, dopamine hydrochloride is a dopamine hydrochloride product sold by alatin reagent company.

In this example, the solvent of the dopamine hydrochloride solution is Tris-buffer.

In this example, the pH of the Tris-buffer solvent was 8.6.

In the embodiment, the Tris-buffer solvent is a Tris-buffer solvent product produced and sold by Nanjing research biotechnology limited company.

Example 2

The embodiment of the present invention is different from embodiment 1 in that: the concentration of the electrolytic silver ion solution was 20 ppm.

Example 3

The embodiment of the present invention is different from embodiment 1 in that: ethylidene norbornene is 2 parts.

Comparative example 1

The embodiment of this comparative example is the same as example 1 except that: the concentration of the electrolytic silver ion solution was 3 ppm.

Comparative example 2

The embodiment of this comparative example is the same as example 1 except that: the dopamine hydrochloride solution accounts for 10 parts.

Comparative example 3

The embodiment of this comparative example is the same as example 1 except that: 0.5 part of ethylidene norbornene.

Comparative example 4

The embodiment of this comparative example is the same as example 1 except that: the concentration of the dopamine hydrochloride solution was 0.1 wt%.

Comparative example 5

The embodiment of this comparative example is the same as example 1 except that: dopamine hydrochloride solution was not sprayed.

Evaluation of Performance

1. Antibacterial property and antibacterial stability: the antibacterial performance of the school uniforms of all the examples and the comparative examples is tested by referring to the standard GB/T209944.3-2088, the washing times are 0 time and 30 times respectively, and the test strains are staphylococcus aureus and escherichia coli; each example comparative example tested 5 samples and the average of the values measured is reported in table 1.

2. Compact compressibility: a tensile test was performed by applying a force of 3kgf to the fabric of the uniform from the lateral direction and the longitudinal direction, respectively, and measuring the elongation of the fabric; each example comparative example tested 5 samples and the average of the values measured is reported in Table 2.

3. Hydrophilicity: testing the water contact angle by a sitting drop method, evaluating the hydrophilicity of the surface of the fabric of the school uniform, and testing the water contact angle of a water drop after dropping for 5 seconds, wherein the water drop is 4 microliter; each example comparative example tested 5 samples and the average of the values measured is reported in Table 2.

4. Flame retardancy: all the uniforms of examples and comparative examples were tested for flame retardancy with reference to GB/T5455-1997, 5 specimens were tested per comparative example of examples, and the average of the values measured is reported in Table 3.

TABLE 1

TABLE 2

Examples	Transverse direction (%)	Longitudinal direction (%)	Water contact Angle (°)
				Example 1	10	12	0
Example 2	17	16	6
				Example 3	11	14	4
Comparative example 1	24	23	35
				Comparative example 2	25	21	40
Comparative example 3	24	22	38
				Comparative example 4	22	24	41
Comparative example 5	37	35	69

TABLE 3

Examples	Time of continuous combustion(s)	Smoldering time(s)
			Example 1	0	0
Example 2	0	0
			Example 3	0	0
Comparative example 1	7.5	3.2
			Comparative example 2	7.8	4.4
Comparative example 3	8.8	4.7
			Comparative example 4	12.5	5.5
Comparative example 5	32.5	12.4

According to the embodiments 1-3 and the comparative examples 1-5, the preparation method and the application of the silver ion long-acting sterilization school uniform provided by the invention have the advantages that the prepared school uniform has excellent antibacterial property, antibacterial stability, flame retardance and hydrophilic moisture absorption and sweat releasing properties, is suitable for being popularized in the field of textiles, and has a wide development prospect. Wherein, the example 1 obtains the best performance index under the factors of the best preparation process, the best weight ratio of the raw materials of the spraying liquid, and the like.

Finally, it should be understood that the above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.