Fabric fiber with antibacterial function and preparation process thereof

Abstract

The present invention relates to the field of textiles, and in particular to a fabric fiber with antibacterial function and a preparation process thereof, comprising: completing the preparation of an antibacterial substrate; completing the atomization of the antibacterial substrate, and sequentially screening out a type of atomized antibacterial powder, a type of atomized antibacterial powder, and a type of defective atomized antibacterial powder; obtaining the wetting characteristic value, wetting characteristic category, and corresponding preheating strategy of the fiber substrate; laying out the fiber substrate, performing ionization treatment, and obtaining the ionization characteristics of the fiber substrate; determining the proportion of the spraying powder based on the ionization characteristics of the fiber substrate; performing the spraying of the antibacterial powder; performing heat preservation and curing to obtain the antibacterial fiber; obtaining the binding characteristic coefficient of the antibacterial fiber, and judging whether the preparation of the antibacterial fiber meets the preset standard according to the binding characteristic coefficient. The bonding strength and stability of the coating and the substrate prepared by the surface coating type antibacterial fabric fiber are improved.

Description

Technical Field

[0001] The invention relates to the field of textiles, and in particular to a fabric fiber with antibacterial function and a preparation process thereof. Background Art

[0002] Antibacterial functional fabric fibers are mainly divided into two categories: natural antibacterial fibers and artificial antibacterial fibers. Among them, natural antibacterial fibers such as hemp fibers, bamboo fibers or chitosan fibers have natural antibacterial properties, which mainly come from the antibacterial substances they contain or the large hollow structure, thus producing natural antibacterial functions. Artificial antibacterial fibers mainly include antibacterial fibers of silver and copper ions, which achieve antibacterial properties by combining antibacterial agents with fibers through co-spinning or post-finishing methods.

[0003] Chinese patent publication number: CN112921292B, discloses a method for batch processing of antibacterial medical silver fibers using sputtering coating technology. A method for batch processing of antibacterial medical silver fibers, including the selection of fiber substrates, cleaning of fiber substrates, batch clamping of fiber substrates, pre-coating operation of fiber substrates, sputtering process of single-distance fiber substrates, and sputtering process of a whole roll of fiber substrates. It can be seen that the technical solution lacks performance testing during the preparation process of surface-coated antibacterial fibers, resulting in insufficient bonding ability between fabric fibers and coatings due to equipment aging or parameter fluctuations during the preparation process, thereby affecting product performance. Summary of the invention

[0004] To this end, the present invention provides a fabric fiber with antibacterial function and a preparation process thereof, so as to overcome the problem in the prior art that there is a lack of performance testing in the preparation process of antibacterial fibers with surface coatings, which leads to insufficient bonding ability between the fabric fiber and the coating due to equipment aging or parameter fluctuations during the preparation process, thereby affecting product performance.

[0005] To achieve the above object, on the one hand, the present invention provides a process for preparing fabric fiber with antibacterial function, comprising:

[0006] The sodium zirconium phosphate silver powder, forsythia oil and polyester chips are fully mixed and then the antibacterial substrate is prepared using a screw extruder;

[0007] The antibacterial substrate is atomized by a spray device, and a first-class atomized antibacterial powder, a second-class atomized antibacterial powder and a defective atomized antibacterial powder are screened out in sequence based on the set particle size, wherein the particle size of the first-class atomized antibacterial powder is smaller than the particle size of the second-class atomized antibacterial powder;

[0008] Obtaining a wetting characteristic value of the fiber substrate, and determining a wetting characteristic category of the fiber substrate and a corresponding preheating strategy according to the wetting characteristic value;

[0009] Arranging the fiber substrate at equal intervals according to a first preset distance, performing ionization treatment on the fiber substrate, and obtaining ionization characteristics of the fiber substrate, wherein the ionization characteristics include low-dispersion ionization characteristics and high-dispersion ionization characteristics;

[0010] Determining the proportion of the spray powder based on the ionization characteristics of the fiber substrate, wherein the spray powder includes a first type of atomized antibacterial powder and a second type of atomized antibacterial powder;

[0011] Spraying antibacterial powder on the fiber substrate;

[0012] Using a heat preservation furnace to heat and cure the fiber substrate after spraying to obtain the antibacterial fiber;

[0013] Obtaining the combination characteristic coefficient of the antibacterial fiber, and when determining that the preparation of the antibacterial fiber does not meet the preset standard according to the combination characteristic coefficient, determining the reason why the preparation of the antibacterial fiber does not meet the preset standard according to the fiber breakage characteristic coefficient, or reducing the spray flow rate of the next batch of antibacterial fiber preparation;

[0014] When it is determined according to the combined characteristic coefficient that the preparation of the antibacterial fiber meets the preset standard, the antibacterial fiber meeting the preset standard is rolled up.

[0015] Furthermore, the process of obtaining the wettability characteristic value of the fiber substrate includes:

[0016] Arranging the fiber substrates at equal intervals according to a second preset distance to obtain a substrate test surface;

[0017] Adding a plurality of water drops on the test surface of the substrate and measuring the wetting angle between each water drop and the test surface of the substrate;

[0018] The average value of the obtained wetting angles is recorded as the wetting characteristic value of the fiber substrate.

[0019] Furthermore, the process of determining the wetting characteristic category of the fiber substrate and the corresponding preheating strategy according to the wetting characteristic value includes:

[0020] Comparing the infiltration characteristic value with a preset infiltration characteristic threshold;

[0021] Under the condition that the wetting characteristic value is less than a preset wetting characteristic threshold, the wetting characteristic category of the fiber substrate is determined to be a first-class wetting characteristic, and under the condition that the wetting characteristic value is greater than or equal to the preset wetting characteristic threshold, the wetting characteristic category of the fiber substrate is determined to be a second-class wetting characteristic;

[0022] In response to the wetting characteristic category of the fiber substrate being the second type of wetting characteristic, the fiber substrate is preheated before spraying.

[0023] Furthermore, the process of obtaining the ionization characteristics of the fiber substrate includes:

[0024] ionizing the fiber substrate;

[0025] Collecting an image of the fiber substrate, and sampling a number of sections of the fiber substrate of a preset length to obtain the number and length of the scattered fibers on the fiber substrate;

[0026] Determining an ionization characteristic value of the fiber substrate based on the number and length of the obtained divergent fibers;

[0027] Comparing the ionization characteristic value with a preset ionization characteristic threshold;

[0028] If the ionization characteristic value is less than a preset ionization characteristic threshold, it is determined that the ionization characteristic of the fiber substrate is a low-dispersion ionization characteristic;

[0029] If the ionization characteristic value is greater than or equal to a preset ionization characteristic threshold, it is determined that the ionization characteristic of the fiber substrate is a high-dispersion ionization characteristic.

[0030] Furthermore, the proportion of the spray powder is determined based on the ionization characteristics of the fiber substrate, wherein:

[0031] If the ionization characteristic of the fiber substrate is a low-dispersion ionization characteristic, the ratio of the spray powder is determined to be an equal weight ratio of the first type of atomized antibacterial powder and the second type of atomized antibacterial powder;

[0032] If the ionization characteristic of the fiber substrate is a highly dispersed ionization characteristic, the weight ratio of the first type of aerosolized antibacterial powder and the second type of aerosolized antibacterial powder is increased according to the difference between the ionization characteristic value and the preset ionization characteristic threshold.

[0033] Furthermore, the increase in the weight ratio of the ingredients is positively correlated with the ionization characteristic difference, wherein the ionization characteristic difference is the difference between the ionization characteristic value and the preset ionization characteristic threshold.

[0034] Furthermore, the combined characteristic coefficient is obtained based on the ratio of an average crack length on the antibacterial fiber of several sections of preset length to a preset average crack length.

[0035] Furthermore, the process of determining that the preparation of the antibacterial fiber does not meet the preset standard according to the combined characteristic coefficient includes:

[0036] Comparing the combined characteristic coefficient with the first preset characteristic coefficient and the second preset characteristic coefficient respectively;

[0037] Under the condition that the combined characteristic coefficient is greater than or equal to the first preset characteristic coefficient, it is determined that the preparation of the antibacterial fiber does not meet the preset standard;

[0038] Under the condition that the combined characteristic coefficient is greater than or equal to the first preset characteristic coefficient and less than the second preset characteristic coefficient, determine the reason why the preparation of the antibacterial fiber does not meet the preset standard according to the fiber breakage characteristic coefficient;

[0039] Under the condition that the combined characteristic coefficient is greater than or equal to the second preset characteristic coefficient, the spray flow rate for preparing the next batch of antibacterial fibers is reduced.

[0040] Further, the reason why the preparation of the antibacterial fiber does not meet the preset standard is determined according to the fiber breakage characteristic coefficient, wherein:

[0041] If the fiber breakage characteristic coefficient is less than the preset breakage characteristic threshold, it is determined that the reason why the preparation of the antibacterial fiber does not meet the preset standard is that the temperature of the heat preservation and curing does not meet the standard, and the temperature of the heat preservation and curing for the preparation of the next batch of antibacterial fibers is increased;

[0042] If the fiber breakage characteristic coefficient is greater than or equal to the preset breakage characteristic threshold, it is determined that the reason why the preparation of the antibacterial fiber does not meet the preset standard is that the insulation and curing time does not meet the standard, and the insulation and curing time for the preparation of the next batch of antibacterial fibers is extended;

[0043] The fiber breakage characteristic coefficient is the ratio of the tensile strength of the antibacterial fiber to the tensile strength of the fiber substrate.

[0044] On the other hand, the present invention also provides a fabric fiber with antibacterial function, wherein the fiber base material of the fabric fiber is one or more of cotton fiber, flax fiber and bamboo fiber.

[0045] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention completes the preparation of the antibacterial substrate; completes the atomization of the antibacterial substrate, and sequentially selects the first type of atomized antibacterial powder, the second type of atomized antibacterial powder and the defective atomized antibacterial powder; obtains the wetting characteristic value of the fiber substrate, the wetting characteristic category and the corresponding preheating strategy; lays out the fiber substrate, performs ionization treatment, and obtains the ionization characteristics of the fiber substrate; determines the proportion of the spray powder based on the ionization characteristics of the fiber substrate; sprays the antibacterial powder; performs heat preservation and curing to obtain the antibacterial fiber; obtains the binding characteristic coefficient of the antibacterial fiber, and determines whether the preparation of the antibacterial fiber meets the preset standard according to the binding characteristic coefficient. The bonding strength and stability of the coating and the substrate prepared by the surface coating type antibacterial fabric fiber are improved.

[0046] Furthermore, the present invention obtains the wetting characteristic value of the fiber substrate, thereby determining the wetting properties of the fiber substrate, and obtains the wetting properties of the substrate by heat preservation and curing after surface spraying, thereby preheating before the spraying process to initially improve the initial bonding strength.

[0047] Furthermore, the present invention obtains the characteristics of the divergent fibers of the fiber substrate, thereby specifically proportioning the atomized antibacterial powder, thereby improving the strength and bonding strength of the surface antibacterial coating.

[0048] Furthermore, for the finished antibacterial fiber product, the present invention obtains the bonding characteristic coefficient through the average crack length on the bacterial fiber, thereby accurately defining the bonding strength of the finished product and optimizing it accordingly, thereby improving the performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a flow chart of a process for preparing fabric fibers with antibacterial function according to an embodiment of the present invention;

[0050] Figure 2 A flow chart for determining the wetting characteristic category of a fiber substrate according to an embodiment of the present invention;

[0051] Figure 3 A flow chart of determining whether the preparation of the antibacterial fiber meets the preset standard according to an embodiment of the present invention;

[0052] Figure 4 A flow chart for determining why the preparation of the antibacterial fiber meets the preset standards according to an embodiment of the present invention. DETAILED DESCRIPTION

[0053] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0054] Those skilled in the art will appreciate that the method of the present invention for determining a single parameter may be to select the value with the highest proportion as the preset standard parameter based on data distribution, use weighted summation to use the obtained value as the preset standard parameter, substitute each historical data into a specific formula and use the value obtained by the formula as the preset standard parameter or other selection methods, as long as the system of the present invention can clearly define different specific situations in the single determination process through the obtained values.

[0055] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0056] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4As shown, they are respectively a flow chart of a process for preparing fabric fibers with antibacterial function according to an embodiment of the present invention; a flow chart of determining the category of the wetting characteristics of a fiber substrate according to an embodiment of the present invention; a flow chart of determining whether the preparation of the antibacterial fiber meets the preset standards according to an embodiment of the present invention; and a flow chart of determining the reason why the preparation of the antibacterial fiber meets the preset standards according to an embodiment of the present invention.

[0057] The preparation process of the fabric fiber with antibacterial function according to the embodiment of the present invention comprises:

[0058] Step S1, fully mixing sodium zirconium phosphate silver powder, forsythia oil and polyester chips, and then using a screw extruder to complete the preparation of the antibacterial substrate;

[0059] Step S2, completing the atomization of the antibacterial substrate based on a spray device, and selecting a type of atomized antibacterial powder, a type of atomized antibacterial powder and a type of defective atomized antibacterial powder in sequence based on the set particle size, wherein the particle size of the type of atomized antibacterial powder is smaller than the particle size of the type of atomized antibacterial powder;

[0060] Step S3, obtaining the wetting characteristic value of the fiber substrate, and determining the wetting characteristic category of the fiber substrate and the corresponding preheating strategy according to the wetting characteristic value;

[0061] Step S4, arranging the fiber substrate at equal intervals according to a first preset distance of 0.5 mm, performing ionization treatment on the fiber substrate, and obtaining ionization characteristics of the fiber substrate, wherein the ionization characteristics include low-dispersion ionization characteristics and high-dispersion ionization characteristics;

[0062] Step S5, determining the proportion of the spray powder based on the ionization characteristics of the fiber substrate, wherein the spray powder includes a first type of atomized antibacterial powder and a second type of atomized antibacterial powder;

[0063] Step S6, spraying the antibacterial powder onto the fiber substrate;

[0064] Step S7, using a heat preservation furnace to heat and cure the fiber substrate after spraying to obtain antibacterial fiber;

[0065] Step S8, obtaining the combination characteristic coefficient of the antibacterial fiber, and when it is determined that the preparation of the antibacterial fiber does not meet the preset standard according to the combination characteristic coefficient, determining the reason why the preparation of the antibacterial fiber does not meet the preset standard according to the fiber breakage characteristic coefficient, or reducing the spray flow rate of the next batch of antibacterial fiber preparation;

[0066] Step S9, when it is determined according to the combined characteristic coefficient that the preparation of the antibacterial fiber meets the preset standard, the antibacterial fiber meeting the preset standard is rolled up.

[0067] Specifically, the particle size of the first type of aerosolized antibacterial powder is less than or equal to 8 microns, and the particle size of the second type of aerosolized antibacterial powder is greater than 8 microns and less than or equal to 20 microns.

[0068] Specifically, the process of obtaining the wettability characteristic value of the fiber substrate includes:

[0069] Arrange the fiber substrate at equal intervals according to a second preset distance of 0.1 mm to obtain a substrate test surface;

[0070] Adding a plurality of water drops on the test surface of the substrate and measuring the wetting angle between each water drop and the test surface of the substrate;

[0071] The average value of the obtained wetting angles is recorded as the wetting characteristic value of the fiber substrate.

[0072] Specifically, the process of determining the wetting characteristic category of the fiber substrate and the corresponding preheating strategy according to the wetting characteristic value includes:

[0073] Comparing the infiltration characteristic value with a preset infiltration characteristic threshold of 25°;

[0074] Under the condition that the wetting characteristic value is less than a preset wetting characteristic threshold, the wetting characteristic category of the fiber substrate is determined to be a first-class wetting characteristic, and under the condition that the wetting characteristic value is greater than or equal to the preset wetting characteristic threshold, the wetting characteristic category of the fiber substrate is determined to be a second-class wetting characteristic;

[0075] In response to the wetting characteristic category of the fiber substrate being the second type of wetting characteristic, preheating the fiber substrate before spraying, with the preheating temperature being 85° C.;

[0076] In response to the wetting characteristic category of the fiber substrate being a type of wetting characteristic, the fiber substrate is not preheated before spraying.

[0077] Specifically, the process of obtaining the ionization characteristics of the fiber substrate includes:

[0078] ionizing the fiber substrate;

[0079] Collecting an image of the fiber substrate, and sampling a number of sections of the fiber substrate of a preset length to obtain the number and length of the scattered fibers on the fiber substrate;

[0080] The ionization characteristic value of the fiber substrate is determined based on the number and length of the obtained divergent fibers, wherein the ionization characteristic value is calculated by the following formula:

[0081]

[0082] In the formula, E is the ionization characteristic value, α is the first evaluation coefficient, α is set to 0.35, β is the second evaluation coefficient, β is set to 0.65, N is the number of divergent fibers in the first preset length segment of 0.5 m, L is the average length of the divergent fibers in the first preset length segment of 0.5 m, Nt is the number threshold, Nt is set to 25, Lt is the length threshold, Lt is set to 1.2 mm.

[0083] Comparing the ionization characteristic value with a preset ionization characteristic threshold;

[0084] If the ionization characteristic value is less than the preset ionization characteristic threshold value of 1.22, it is determined that the ionization characteristic of the fiber substrate is a low-dispersion ionization characteristic;

[0085] If the ionization characteristic value is greater than or equal to a preset ionization characteristic threshold, it is determined that the ionization characteristic of the fiber substrate is a high-dispersion ionization characteristic.

[0086] Specifically, the proportion of the spray powder is determined based on the ionization characteristics of the fiber substrate, wherein:

[0087] If the ionization characteristic of the fiber substrate is a low-dispersion ionization characteristic, the ratio of the spray powder is determined to be an equal weight ratio of the first type of atomized antibacterial powder and the second type of atomized antibacterial powder. It can be understood that the first type of atomized antibacterial powder and the second type of atomized antibacterial powder have the same weight ratio;

[0088] If the ionization characteristic of the fiber substrate is a highly dispersed ionization characteristic, the weight ratio of the first type of aerosolized antibacterial powder and the second type of aerosolized antibacterial powder is increased according to the difference between the ionization characteristic value and the preset ionization characteristic threshold.

[0089] Specifically, the increase in the weight ratio of the ingredients is positively correlated with the ionization characteristic difference, wherein the ionization characteristic difference is the difference between the ionization characteristic value and the preset ionization characteristic threshold value. The positive correlation is, for example, a linear positive correlation or a nonlinear positive correlation, wherein the linear slope of the linear positive correlation is not specifically limited, and it only needs to satisfy that the larger the ionization characteristic difference, the greater the increase in the weight ratio of the ingredients.

[0090] Specifically, the combined characteristic coefficient is obtained based on the ratio of the average crack length of several sections of the antibacterial fiber with a preset length of 0.1 m to a preset average crack length of 1.2 m.

[0091] Specifically, the average crack length on the antibacterial fiber can be analyzed by using measurement software after image acquisition for crack length analysis.

[0092] Specifically, the image measurement is performed when the antibacterial fiber naturally recovers to a stable length after being stretched by 5% in combination with the characteristic coefficient.

[0093] Specifically, the process of determining that the preparation of the antibacterial fiber does not meet the preset standard according to the combined characteristic coefficient includes:

[0094] The combined characteristic coefficient is compared with the first preset characteristic coefficient 0.85 and the second preset characteristic coefficient 1.22 respectively;

[0095] Under the condition that the combined characteristic coefficient is greater than or equal to the first preset characteristic coefficient, it is determined that the preparation of the antibacterial fiber does not meet the preset standard;

[0096] Under the condition that the combined characteristic coefficient is greater than or equal to the first preset characteristic coefficient and less than the second preset characteristic coefficient, determine the reason why the preparation of the antibacterial fiber does not meet the preset standard according to the fiber breakage characteristic coefficient;

[0097] Under the condition that the combined characteristic coefficient is greater than or equal to the second preset characteristic coefficient, the spray flow rate for preparing the next batch of antibacterial fibers is reduced according to the difference between the combined characteristic coefficient and the second preset characteristic coefficient.

[0098] Specifically, the reason why the preparation of the antibacterial fiber does not meet the preset standard is determined according to the fiber breakage characteristic coefficient, wherein:

[0099] If the fiber breakage characteristic coefficient is less than the preset breakage characteristic threshold value of 1.24, it is determined that the reason why the preparation of the antibacterial fiber does not meet the preset standard is that the temperature of the heat preservation and curing does not meet the standard, and the temperature of the heat preservation and curing for the preparation of the next batch of antibacterial fibers is increased according to the difference between the preset breakage characteristic threshold value and the fiber breakage characteristic coefficient;

[0100] If the fiber breakage characteristic coefficient is greater than or equal to the preset breakage characteristic threshold, it is determined that the reason why the preparation of the antibacterial fiber does not meet the preset standard is that the heat preservation and curing time does not meet the standard, and the heat preservation and curing time for the preparation of the next batch of antibacterial fibers is extended according to the difference between the fiber breakage characteristic coefficient and the preset breakage characteristic threshold;

[0101] The fiber breakage characteristic coefficient is the ratio of the tensile strength of the antibacterial fiber to the tensile strength of the fiber substrate.

[0102] On the other hand, an embodiment of the present invention provides a fabric fiber with antibacterial function, wherein the fiber base material of the fabric fiber is one or more of cotton fiber, flax fiber and bamboo fiber.

[0103] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A process for preparing fabric fiber with antibacterial function, characterized in that: include: The sodium zirconium phosphate silver powder, forsythia oil and polyester chips are fully mixed and then the antibacterial substrate is prepared using a screw extruder; The antibacterial substrate is atomized by a spray device, and a first-class atomized antibacterial powder, a second-class atomized antibacterial powder and a defective atomized antibacterial powder are screened out in sequence based on the set particle size, wherein the particle size of the first-class atomized antibacterial powder is smaller than the particle size of the second-class atomized antibacterial powder; Obtaining a wetting characteristic value of the fiber substrate, and determining a wetting characteristic category of the fiber substrate and a corresponding preheating strategy according to the wetting characteristic value; Arranging the fiber substrate at equal intervals according to a first preset distance, performing ionization treatment on the fiber substrate, and obtaining ionization characteristics of the fiber substrate, wherein the ionization characteristics include low-dispersion ionization characteristics and high-dispersion ionization characteristics; Determining the proportion of the spray powder based on the ionization characteristics of the fiber substrate, wherein the spray powder includes a first type of atomized antibacterial powder and a second type of atomized antibacterial powder; Spraying antibacterial powder on the fiber substrate; Using a heat preservation furnace to heat and cure the fiber substrate after spraying to obtain the antibacterial fiber; Obtaining the combination characteristic coefficient of the antibacterial fiber, and when determining that the preparation of the antibacterial fiber does not meet the preset standard according to the combination characteristic coefficient, determining the reason why the preparation of the antibacterial fiber does not meet the preset standard according to the fiber breakage characteristic coefficient, or reducing the spray flow rate of the next batch of antibacterial fiber preparation; When it is determined according to the combined characteristic coefficient that the preparation of the antibacterial fiber meets the preset standard, the antibacterial fiber meeting the preset standard is rolled up; The process of obtaining the wettability characteristic value of the fiber substrate includes: Arranging the fiber substrates at equal intervals according to a second preset distance to obtain a substrate test surface; Adding a plurality of water drops on the test surface of the substrate and measuring the wetting angle between each water drop and the test surface of the substrate; The average value of each of the wetting angles obtained is recorded as the wetting characteristic value of the fiber substrate; The process of determining the wetting characteristic category of the fiber substrate and the corresponding preheating strategy according to the wetting characteristic value includes: Comparing the infiltration characteristic value with a preset infiltration characteristic threshold; Under the condition that the wetting characteristic value is less than a preset wetting characteristic threshold, the wetting characteristic category of the fiber substrate is determined to be a first-class wetting characteristic, and under the condition that the wetting characteristic value is greater than or equal to the preset wetting characteristic threshold, the wetting characteristic category of the fiber substrate is determined to be a second-class wetting characteristic; In response to the wetting characteristic category of the fiber substrate being a second-class wetting characteristic, preheating the fiber substrate before spraying; The process of obtaining the ionization characteristics of the fiber substrate includes: ionizing the fiber substrate; Collecting an image of the fiber substrate, and sampling a number of sections of the fiber substrate of a preset length to obtain the number and length of the scattered fibers on the fiber substrate; Determining an ionization characteristic value of the fiber substrate based on the number and length of the obtained divergent fibers; Comparing the ionization characteristic value with a preset ionization characteristic threshold; If the ionization characteristic value is less than a preset ionization characteristic threshold, it is determined that the ionization characteristic of the fiber substrate is a low-dispersion ionization characteristic; If the ionization characteristic value is greater than or equal to a preset ionization characteristic threshold, it is determined that the ionization characteristic of the fiber substrate is a high-dispersion ionization characteristic; The proportion of the spray powder is determined based on the ionization characteristics of the fiber substrate, wherein: If the ionization characteristic of the fiber substrate is a low-dispersion ionization characteristic, the ratio of the spray powder is determined to be an equal weight ratio of the first type of atomized antibacterial powder and the second type of atomized antibacterial powder; If the ionization characteristic of the fiber substrate is a highly dispersed ionization characteristic, the weight ratio of the first type of aerosolized antibacterial powder and the second type of aerosolized antibacterial powder is increased according to the difference between the ionization characteristic value and the preset ionization characteristic threshold.

2. The process for preparing fabric fiber with antibacterial function according to claim 1, characterized in that: The increase in the weight ratio of the ingredients is positively correlated with the ionization characteristic difference, wherein the ionization characteristic difference is the difference between the ionization characteristic value and the preset ionization characteristic threshold.

3. The process for preparing fabric fiber with antibacterial function according to claim 2, characterized in that: The combined characteristic coefficient is obtained based on the ratio of the average crack length of the antibacterial fiber of several sections with preset lengths to the preset average crack length.

4. The process for preparing fabric fiber with antibacterial function according to claim 3, characterized in that: The process of determining that the preparation of the antibacterial fiber does not meet the preset standard according to the combined characteristic coefficient includes: Comparing the combined characteristic coefficient with the first preset characteristic coefficient and the second preset characteristic coefficient respectively; Under the condition that the combined characteristic coefficient is greater than or equal to the first preset characteristic coefficient, it is determined that the preparation of the antibacterial fiber does not meet the preset standard; Under the condition that the combined characteristic coefficient is greater than or equal to the first preset characteristic coefficient and less than the second preset characteristic coefficient, determine the reason why the preparation of the antibacterial fiber does not meet the preset standard according to the fiber breakage characteristic coefficient; Under the condition that the combined characteristic coefficient is greater than or equal to the second preset characteristic coefficient, the spray flow rate for preparing the next batch of antibacterial fibers is reduced.

5. The process for preparing fabric fiber with antibacterial function according to claim 4, characterized in that: The reason why the preparation of the antibacterial fiber does not meet the preset standard is determined according to the fiber breakage characteristic coefficient, wherein: If the fiber breakage characteristic coefficient is less than the preset breakage characteristic threshold, it is determined that the reason why the preparation of the antibacterial fiber does not meet the preset standard is that the temperature of the heat preservation and curing does not meet the standard, and the temperature of the heat preservation and curing for the preparation of the next batch of antibacterial fibers is increased; If the fiber breakage characteristic coefficient is greater than or equal to the preset breakage characteristic threshold, it is determined that the reason why the preparation of the antibacterial fiber does not meet the preset standard is that the insulation and curing time does not meet the standard, and the insulation and curing time for the preparation of the next batch of antibacterial fibers is extended; The fiber breakage characteristic coefficient is the ratio of the tensile strength of the antibacterial fiber to the tensile strength of the fiber substrate.

6. A fabric fiber prepared by the process for preparing a fabric fiber with antibacterial function according to any one of claims 1 to 5, characterized in that: The fiber base material is one or more of cotton fiber, flax fiber and bamboo fiber.

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