CN117867851A - Antibacterial multifunctional towel and preparation method thereof - Google Patents

Abstract

The application relates to an antibacterial multifunctional towel and a preparation method thereof, and relates to the technical field of towels, wherein the preparation method comprises the following steps: the polyester velvet yarn is planted into grey cloth, and then napping, carding, shearing and shaping are carried out to obtain a fabric with the gram weight of 300-320 g/square meter; immersing the fabric in a composite antibacterial liquid for towels to carry out padding treatment, and then drying to obtain the antibacterial multifunctional towel; the composite antibacterial liquid for the towel comprises the following components in parts by weight: 10-20 parts of wormwood extract, 5-10 parts of water-soluble chitosan, 1-5 parts of nano zirconia, 0.5-5 parts of amphiphilic surfactant, 0.5-2 parts of quaternary ammonium salt ionic liquid and 15-50 parts of deionized water. The invention provides an antibacterial multifunctional antibacterial towel which is soft in texture, does not irritate facial skin, and has excellent antibacterial performance, washability and self-cleaning capability.

Description

Antibacterial multifunctional towel and preparation method thereof

Technical Field

The present application relates to the technical field of towels, and in particular to an antibacterial multifunctional towel and a preparation method thereof.

Background technique

Towels are daily necessities that people frequently touch every day and are the most common textiles in thousands of households. With the continuous improvement of people's living standards and the high development of science and technology, functional and environmentally friendly towels have become the mainstream of today's towel market, among which towels with antibacterial function have become one of the ways to solve the above problems.

At present, most of the base materials of towels with antibacterial function on the market are made of cotton fiber, and some are blended with natural antibacterial fiber. The weight of antibacterial towels made of this kind of material is generally no more than 200 grams per square meter, with low weight per unit area and insufficient decontamination ability; they are not resistant to washing, and harmful bacteria are easy to reproduce on cotton fibers, resulting in poor antibacterial performance, which greatly limits the application of antibacterial towels.

Summary of the invention

The present application provides an antibacterial multifunctional towel and a preparation method thereof, so as to solve the technical problems of the existing antibacterial towels, such as poor water resistance and poor antibacterial performance.

In a first aspect, the present application provides a method for preparing an antibacterial multifunctional towel, the preparation method comprising the following steps:

The polyester velvet yarn is implanted into the grey cloth, and then the cloth is napped, combed, sheared and shaped to obtain a fabric with a gram weight of 300-320 grams per square meter;

The fabric is immersed in a composite antibacterial liquid for towels for padding treatment, and then dried to obtain the antibacterial multifunctional towel;

Wherein, the composite antibacterial liquid for towels comprises the following components in parts by weight:

10-20 parts of wormwood extract, 5-10 parts of water-soluble chitosan, 1-5 parts of nano zirconium oxide, 0.5-5 parts of amphiphilic surfactant, 0.5-2 parts of quaternary ammonium salt ionic liquid and 15-50 parts of deionized water.

Furthermore, the polyester velvet yarn is polyester fiber DTY150d/288f.

Furthermore, the weight ratio of the wormwood extract, the water-soluble chitosan and the nano zirconium oxide is 7:4:2.

Furthermore, the preparation method of the wormwood extract comprises the following steps:

The stems and leaves of mugwort are immersed in liquid nitrogen, and then taken out and placed in an environment below -5°C for freeze-drying and crushing to obtain granules of the stems and leaves of mugwort;

The wormwood stem and leaf particles are added to water, and a first reduced pressure distillation extraction is performed under the conditions of a temperature of 40° C. to 42° C. and a vacuum degree of 0.08 Mpa to 0.10 Mpa, and when the volume of the distillate is half of the volume of the initial water addition, the first reduced pressure distillation is stopped to obtain a first distillate and a remaining feed liquid;

Adding the same volume of ethanol as that of the first distillate to the remaining liquid, performing a second vacuum distillation extraction at a temperature of 58° C. to 60° C. and a vacuum degree of 0.08 MPa to 0.10 MPa, and stopping the second vacuum distillation when the volume of the distillate is half of the volume of the initial water addition to obtain a second distillate;

The first distillate and the second distillate are combined and concentrated, and then vacuum dried to obtain the wormwood extract.

Furthermore, the weight ratio of the initial amount of water added to the mugwort stem and leaf particles is (10-12):1.

Furthermore, the water-soluble chitosan is chitosan quaternary ammonium salt.

Furthermore, the particle size of the nano zirconium oxide is 20 to 30 nm.

Furthermore, the amphiphilic surfactant is at least one of polysorbate, sulfonate, carboxylate, phosphate and lecithin.

Furthermore, the quaternary ammonium salt ionic liquid is at least one of trimethyloctylammonium chloride and tetrabutylammonium bromide.

In a second aspect, the present application provides an antibacterial multifunctional towel, which is prepared by the preparation method described in any one of the first aspects.

The above technical solution provided by the embodiment of the present application has at least the following advantages compared with the prior art:

The embodiment of the present application provides an antibacterial multifunctional towel and a preparation method thereof. The antibacterial multifunctional towel adopts flocking technology to implant polyester flock yarn into grey cloth to obtain a 100% polyester fiber fabric with a gram weight of 300-320 grams per square meter. The fabric has a soft texture and will not irritate the facial skin. The flocking density is high, the unit contact area between the towel and the skin is larger, the friction adsorption force is stronger, and the cleaning ability and water absorption are stronger. More importantly, the 100% polyester fiber high-density fabric with a gram weight of 300-320 grams per square meter is combined with a towel of a specific composition to undergo a conventional impregnation and padding process with a composite antibacterial liquid, the composite antibacterial liquid is added to the towel, and the antibacterial towel is obtained after drying, which gives it excellent antibacterial performance, water washability and good self-cleaning ability, effectively solving the problems of water inability and poor antibacterial performance of existing antibacterial towels.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

FIG1 is a schematic flow chart of a method for preparing an antibacterial multifunctional towel provided in an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

Unless otherwise specified, various raw materials, reagents, instruments and equipment used in this application can be purchased from the market or prepared by existing methods.

In a first aspect, the present application provides a method for preparing an antibacterial multifunctional towel, as shown in FIG1 , the preparation method comprises the following steps:

The polyester velvet yarn is implanted into the grey cloth, and then the cloth is napped, combed, sheared and shaped to obtain a fabric with a gram weight of 300-320 grams per square meter;

The fabric is immersed in a composite antibacterial liquid for towels for padding treatment, and then dried to obtain the antibacterial multifunctional towel;

Wherein, the composite antibacterial liquid for towels comprises the following components in parts by weight:

10-20 parts of wormwood extract, 5-10 parts of water-soluble chitosan, 1-5 parts of nano zirconium oxide, 0.5-5 parts of amphiphilic surfactant, 0.5-2 parts of quaternary ammonium salt ionic liquid and 15-50 parts of deionized water.

The embodiment of the present application provides an antibacterial multifunctional towel and a preparation method thereof. The antibacterial multifunctional towel adopts flocking technology to implant polyester flock yarn into grey cloth to obtain a 100% polyester fiber fabric with a gram weight of 300-320 grams per square meter. The fabric has a soft texture and will not irritate the facial skin. The flocking density is high, the unit contact area between the towel and the skin is larger, the friction adsorption force is stronger, and the cleaning ability and water absorption are stronger. More importantly, the 100% polyester fiber high-density fabric with a gram weight of 300-320 grams per square meter is combined with a towel of a specific composition to undergo a conventional impregnation and padding process with a composite antibacterial liquid, the composite antibacterial liquid is added to the towel, and the antibacterial towel is obtained after drying, which gives it excellent antibacterial performance, water washability and good self-cleaning ability, effectively solving the problems of water inability and poor antibacterial performance of existing antibacterial towels.

The composite antibacterial liquid for towels used in the present application includes mugwort extract as the core antibacterial ingredient, which is green and environmentally friendly, supplemented with water-soluble chitosan and nano-zirconium oxide, which can significantly enhance the antibacterial effect and impart a certain self-cleaning ability; at the same time, the addition of amphiphilic surfactants and quaternary ammonium salt ionic liquids not only enhances the intermolecular electrostatic force and hydrogen bonding effect within the system, but also has strong adhesion to 100% polyester fiber high-density fabric with a gram weight of 300-320 grams/square meter, and the antibacterial performance is sustained and stable.

In the above-mentioned preparation method of the present application, in the step of obtaining a fabric with a gram weight of 300-320 g/m2, for example, the polyester velvet yarn is implanted into the grey cloth, and then the napping, combing, shearing and shaping can be carried out by conventional processes in the field, ensuring that the implantation amount of the polyester velvet yarn is appropriate, so that the resulting fabric reaches a gram weight of 300-320 g/m2. Gram weight is a commonly used unit for textile evaluation, which is the weight of fabric per square meter. Usually, when the fabric is processed to a certain amount, the fabric is cut into 1m×1m and weighed on a special textile gram weight tester to obtain the data. The larger the gram weight, the higher the fiber content.

In the above-mentioned preparation method of the present application, the composite antibacterial liquid for towels is added to the towels through the conventional dipping and rolling process in the field, such as soaking the fabric in a dipping and rolling machine tank filled with the composite antibacterial liquid for towels, keeping it for 15 to 30 minutes, then quickly squeezing it through a roller, and then drying it.

The composite antibacterial liquid for towels mentioned in the present application can be prepared according to conventional preparation methods, such as: stirring the amphiphilic surfactant, quaternary ammonium salt ionic liquid and deionized water evenly, then adding wormwood extract, water-soluble chitosan and nano zirconium oxide and continuing to stir, and after mixing evenly, the composite antibacterial liquid for towels is obtained.

In the above preparation method of the present application, the obtained antibacterial multifunctional towel can also be cut to a preset size according to the actual needs and the conventional towel preparation method disclosed in the art. If it is a printed towel, the original image can also be made using AI mapping software, input into a computer connected to the dyeing machine, and the position of the pattern on the fabric can be computer-located, the color can be fixed, and the printing can be performed, etc. This application document does not go into details one by one.

As an implementation of an example of the present application, the polyester velvet yarn is polyester fiber DTY150d/288f.

Unlike the blended towels and cotton towels currently on the market, this application uses polyester fiber DTY150d/288f (100% polyester fiber, coral fleece), which is soft in texture and will not irritate the facial skin; and uses high-density flocking of 300-320 grams/square meter, which has better synergy with the composite antibacterial liquid for towels provided in this application.

As an implementation method of the examples of the present application, the weight ratio of the mugwort extract, the water-soluble chitosan and the nano zirconium oxide is 7:4:2.

The applicant has found that when the weight ratio of the wormwood extract, the water-soluble chitosan and the nano zirconium oxide is controlled to be 7:4:2, the obtained composite antibacterial liquid for towels can give the 300-320 g/m2 high-density flocking better performance.

As an implementation method of the present application, the preparation method of the wormwood extract comprises the following steps:

The stems and leaves of mugwort are immersed in liquid nitrogen, and then taken out and placed in an environment below -5°C for freeze-drying and crushing to obtain granules of the stems and leaves of mugwort;

The wormwood stem and leaf particles are added to water, and a first reduced pressure distillation extraction is performed under the conditions of a temperature of 40° C. to 42° C. and a vacuum degree of 0.08 Mpa to 0.10 Mpa, and when the volume of the distillate is half of the volume of the initial water addition, the first reduced pressure distillation is stopped to obtain a first distillate and a remaining feed liquid;

Adding the same volume of ethanol as that of the first distillate to the remaining liquid, performing a second vacuum distillation extraction at a temperature of 58° C. to 60° C. and a vacuum degree of 0.08 MPa to 0.10 MPa, and stopping the second vacuum distillation when the volume of the distillate is half of the volume of the initial water addition to obtain a second distillate;

The first distillate and the second distillate are combined and concentrated, and then vacuum dried to obtain the wormwood extract.

The present application adopts the mugwort extract obtained by the above-mentioned specific preparation method, and performs a first reduced-pressure distillation with pure water as the extraction solvent at a specific temperature and pressure, and performs a second reduced-pressure distillation with a mixed solvent consisting of pure water and ethanol as the extraction solvent at a specific temperature and pressure, so as to better retain active ingredients such as isoetisingin, and significantly improve the antibacterial properties of the composite antibacterial liquid for towels.

In some specific embodiments, the weight ratio of the initial amount of water added to the mugwort stem and leaf particles is (10-12):1.

In some specific embodiments, the water-soluble chitosan is chitosan quaternary ammonium salt.

In some specific embodiments, the particle size of the nano zirconium oxide is 20 to 30 nm.

In some specific embodiments, the amphiphilic surfactant is at least one of polysorbate, sulfonate, carboxylate, phosphate and lecithin.

In some specific embodiments, the quaternary ammonium salt ionic liquid is at least one of trimethyloctylammonium chloride and tetrabutylammonium bromide.

It should be noted that, unless otherwise specified or specifically described, the components involved in the composite antibacterial liquid for towels provided in the present application may all be commercially available products.

In a second aspect, based on a general inventive concept, the present application provides an antibacterial multifunctional towel, which is prepared by the preparation method described in any one of the first aspects.

The antibacterial multifunctional towel provided by the present application is soft in texture, does not irritate the facial skin, has excellent antibacterial performance, water washability and good self-cleaning ability. At the same time, the antibacterial multifunctional towel is realized based on the preparation method described in any one of the first aspects above, and therefore has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

The present application will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are intended only to illustrate the present application and are not intended to limit the scope of the present application. The experimental methods for which specific conditions are not specified in the following examples are usually measured according to national standards. If there is no corresponding national standard, then the conditions recommended by the manufacturer are followed.

Example 1

The present embodiment provides an antibacterial multifunctional towel, and the preparation method of the antibacterial multifunctional towel comprises the following steps:

The polyester velvet yarn (specifically polyester fiber DTY150d/288f) is implanted into the grey cloth (specifically polyester grey cloth), and then the fabric is napped, combed, sheared and shaped to obtain a fabric with a gram weight of 310 g/m2;

The fabric is immersed in a composite antibacterial liquid for towels for padding treatment, and then dried to obtain the antibacterial multifunctional towel;

Wherein, the composite antibacterial liquid for towels comprises the following components in parts by weight:

14 parts of wormwood extract, 8 parts of water-soluble chitosan (specifically chitosan quaternary ammonium salt, the full name is hydroxypropyltrimethylammonium chloride chitosan), 4 parts of nano zirconium oxide (specific particle size is 20-30nm), 1.5 parts of amphiphilic surfactant (specifically polysorbate), 1 part of quaternary ammonium salt ionic liquid (specifically trimethyloctyl ammonium chloride ionic liquid), and 40 parts of deionized water;

The preparation method of the wormwood extract comprises the following steps:

The stems and leaves of mugwort are immersed in liquid nitrogen, and then taken out and placed in an environment below -5°C for freeze-drying and crushing to obtain granules of the stems and leaves of mugwort;

The wormwood stem and leaf particles are added to water, and a first reduced pressure distillation extraction is performed under the conditions of a temperature of 41±0.5° C. and a vacuum degree of 0.09±0.01 MPa. When the volume of the distillate is half of the volume of the initial amount of water added, the first reduced pressure distillation is stopped to obtain a first distillate and a remaining feed liquid; the weight ratio of the initial amount of water added to the wormwood stem and leaf particles is 10:1;

Adding the same volume of ethanol as that of the first distillate to the remaining liquid, performing a second vacuum distillation extraction at a temperature of 59±0.5° C. and a vacuum degree of 0.09±0.01 MPa, and stopping the second vacuum distillation when the volume of the distillate is half of the volume of the initial water addition to obtain a second distillate;

The first distillate and the second distillate are combined and concentrated, and then vacuum dried to obtain the wormwood extract.

Example 2

This example provides an antibacterial multifunctional towel, which differs from Example 1 only in that, by weight, the composite antibacterial liquid for towels comprises the following components: 10 parts of wormwood extract, 5 parts of water-soluble chitosan, 2 parts of nano zirconium oxide, 1.5 parts of amphiphilic surfactant, 1 part of quaternary ammonium salt ionic liquid, and 40 parts of deionized water. The remaining steps and parameters are the same.

Example 3

This example provides an antibacterial multifunctional towel, which differs from Example 1 only in that, by weight, the composite antibacterial liquid for towels comprises the following components: 20 parts of wormwood extract, 10 parts of water-soluble chitosan, 5 parts of nano zirconium oxide, 1.5 parts of amphiphilic surfactant, 1 part of quaternary ammonium salt ionic liquid, and 40 parts of deionized water. The remaining steps and parameters are the same.

Example 4

This example provides an antibacterial multifunctional towel, which is different from Example 1 only in that the preparation method of the wormwood extract comprises the following steps: crushing and shearing the wormwood stems and leaves into powder, placing them in a reaction kettle, adding 10 times the weight of ethanol extraction solvent, extracting at 70°C for 1.5 hours, using macroporous adsorption resin for adsorption purification and elution purification, and evaporating and concentrating until there is no alcohol taste. The remaining steps and parameters are the same.

Comparative Example 1

This example provides an antibacterial towel, which is different from Example 1 only in that the fabric with a gram weight of 300-320 grams per square meter is adjusted to a cotton towel material fabric with a gram weight of 200 grams per square meter; the remaining steps and parameters are the same.

Comparative Example 2

This example provides an antibacterial towel, which is different from Example 1 only in that the amount of quaternary ammonium salt ionic liquid in the composite antibacterial liquid for the towel is adjusted to 0 parts; the remaining steps and parameters are the same.

Comparative Example 3

This example provides an antibacterial towel, which is different from Example 1 only in that the amount of water-soluble chitosan in the composite antibacterial liquid for the towel is adjusted to 0 parts; the remaining steps and parameters are the same.

Test Case

In this example, the antibacterial towels obtained in Examples 1 to 4 and Comparative Examples 1 to 3 were tested for their performance. According to GB/T20944.3-2008 "Evaluation of Antibacterial Properties of Textiles Part 3: Oscillation Method", the antibacterial rates of three bacterial species, Staphylococcus aureus (ATCC6538), Candida albicans (ATCC10231), and Escherichia coli (ATCC25922), were tested. The antibacterial performance test results after 200 washes are shown in Table 1.

Table 1 Antibacterial performance after washing 200 times

serial number ATCC6538 (inhibition rate %) ATCC10231 (inhibition rate %) ATCC25922 (inhibition rate %) Example 1 99.4% 99.2% 99.6% Example 2 91.2% 90.4% 91.7% Example 3 93.1% 92.3% 93.5% Example 4 89.9% 90.1% 88.7% Comparative Example 1 39.6% 37.8% 36.9% Comparative Example 2 33.1% 31.9% 32.2% Comparative Example 3 42.4% 43.4% 45.7%

Various embodiments of the present application may be presented in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity, and should not be understood as a rigid limitation on the scope of the present application; therefore, the range description should be considered to have specifically disclosed all possible sub-ranges and single numerical values within the range. For example, the range description from 1 to 6 should be considered to have specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which apply regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any cited number (fractional or integer) within the indicated range.

In the present application, in the absence of any contrary description, the directional words used, such as "upper" and "lower", are specifically the directions of the drawings in the accompanying drawings. In addition, in the description of the present specification, the terms "including", "comprising", etc. refer to "including but not limited to". In this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In this article, "and/or" describes the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. Wherein A, B can be singular or plural. In this article, "at least one" refers to one or more, and "plural" refers to two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, "at least one of a, b, or c" or "at least one of a, b and c" can both mean: a, b, c, a-b (i.e. a and b), a-c, b-c, or a-b-c, where a, b, c can be single or plural, respectively.

The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims (10)

1. The preparation method of the antibacterial multifunctional towel is characterized by comprising the following steps of:

the polyester velvet yarn is planted into grey cloth, and then napping, carding, shearing and shaping are carried out to obtain a fabric with the gram weight of 300-320 g/square meter;

immersing the fabric in a composite antibacterial liquid for towels to carry out padding treatment, and then drying to obtain the antibacterial multifunctional towel;

the composite antibacterial liquid for the towel comprises the following components in parts by weight:

10-20 parts of wormwood extract, 5-10 parts of water-soluble chitosan, 1-5 parts of nano zirconia, 0.5-5 parts of amphiphilic surfactant, 0.5-2 parts of quaternary ammonium salt ionic liquid and 15-50 parts of deionized water.

2. The method of claim 1, wherein the polyester velvet yarn is polyester fiber DTY150d/288f.

3. The preparation method according to claim 1, wherein the weight ratio of the mugwort extract, the water-soluble chitosan and the nano zirconia is 7:4:2.

4. The preparation method according to claim 1, wherein the preparation method of the mugwort extract comprises the following steps:

immersing the stems and leaves of the wormwood in liquid nitrogen, fishing out, and freeze-drying and crushing the wormwood in an environment below-5 ℃ to obtain wormwood stem and leaf granules;

adding the mugwort stem leaf particles into water, performing first reduced pressure distillation and extraction under the conditions of 40-42 ℃ and 0.08-0.10 Mpa vacuum degree, and stopping the first reduced pressure distillation when the volume of the distillate is half of the volume of the initial water adding amount to obtain a first distillate and a residual feed liquid;

adding ethanol with the same volume as the first distillate into the residual feed liquid, performing second reduced pressure distillation and extraction at 58-60 ℃ and 0.08-0.10 Mpa vacuum degree, and stopping the second reduced pressure distillation when the volume of the distillate is half of the volume of the initial water adding amount to obtain a second distillate;

and combining and concentrating the first distillate and the second distillate, and then drying in vacuum to obtain the mugwort extract.

5. The preparation method according to claim 4, wherein the weight ratio of the initial water addition amount to the mugwort stem and leaf particles is (10-12): 1.

6. The method of claim 1, wherein the water-soluble chitosan is a chitosan quaternary ammonium salt.

7. The method according to claim 1, wherein the particle size of the nano zirconia is 20 to 30nm.

8. The method of claim 1, wherein the amphiphilic surfactant is at least one of polysorbate, sulfonate, carboxylate, phosphate, and lecithin.

9. The method according to claim 1, wherein the quaternary ammonium salt ionic liquid is at least one of trimethyloctyl ammonium chloride and tetrabutylammonium bromide.

10. An antibacterial multifunctional towel, which is characterized in that the antibacterial multifunctional towel is prepared by the preparation method of claims 1-9.