Herbal deodorizing master batch, fiber, fabric and preparation method thereof

Abstract

The invention relates to a herbal deodorizing master batch, a fiber, a fabric and a preparation method thereof. The master batch comprises the following components in parts by mass: 60-75 parts of polyester PET, 0.5-1 part of an antioxidant, 0.5-1 part of a dispersant and 25-40 parts of a herbal deodorizing extract, the herbal deodorizing extract comprises one or more of scandent hop extract, mottled bamboo extract, lichen extract and amblystegium giganteum extract; the antioxidant is tea polyphenol, and the dispersing agent is talcum powder. The master batch is prepared by melt blending extrusion granulation, and the fiber is prepared by melt spinning of the master batch and polyester. The deodorization component in the master batch prepared by the invention can still keep activity after being subjected to polymer melting high-temperature treatment, and can enter the fabric in a melt spinning manner, so that the fabric has deodorization property.

Description

Technical Field

[0001] The invention relates to the field of textile fibers, and in particular to a herbal deodorizing masterbatch, fiber, fabric and a preparation method thereof. Background Art

[0002] In daily life, the human body breeds various bacteria, and "smelly bacteria" that breed and multiply due to the metabolites of human sweat, generate volatile malodorous substances such as isovaleric acid and ammonia, and are easy to cause human skin diseases. With the continuous progress of social civilization, people's requirements for the external environment are increasing day by day, and solving the unpleasant odors that affect the environment has also become a topic of concern. This provides a good opportunity for the development of deodorizing textiles, and various textiles with deodorizing functions have gradually become popular. Polyester is the most widely used fiber in the textile field, and its related products account for more than 75% of the textile market share. The development of polyester fabrics with good antibacterial and deodorizing functions and their wide application have an important role in promoting the development of the textile industry.

[0003] Herbal extracts have attracted much attention in the field of deodorant fibers because of their natural, safe and environmentally friendly properties. These extracts usually contain a variety of active ingredients that can effectively neutralize or decompose odor molecules, and have a certain antibacterial effect, thereby reducing the generation of odors. For example, tea tree extract, peppermint oil and lavender are all commonly used herbal deodorant ingredients. Under current technology, high-temperature processing of herbal extracts often requires pretreatment methods such as adsorption or coating to improve their stability. Although these pretreatment processes can enhance the heat resistance of herbal extracts, they also make the entire preparation process more complicated and increase production costs. More importantly, the added coating and adsorption materials will dilute the concentration of the active ingredients, which is not conducive to enhancing the deodorizing effect of herbal deodorizing fibers. Summary of the invention

[0004] In view of the above problems, the present invention provides a herbal deodorant masterbatch, fiber, preparation method and application thereof. The deodorant components in the herbal deodorant masterbatch can still maintain activity after high-temperature treatment of polymer melt, and can be incorporated into fabrics by melt spinning, so that the fabrics have deodorant properties.

[0005] The first aspect of the present invention provides an herbal deodorizing masterbatch, which comprises the following components in parts by weight: 60 to 75 parts of polyester PET, 0.5 to 1 part of antioxidant, 0.5 to 1 part of dispersant, and 25 to 40 parts of herbal deodorizing extract; the herbal deodorizing extract comprises one or more of extracts of Humulus japonicus, Bambusa chinensis, Lichen, and Macrophylla serrata; the antioxidant is tea polyphenols, and the dispersant is talcum powder.

[0006] Different from the prior art, the above technical scheme provides a natural herbal antibacterial masterbatch for polymer fibers. The deodorizing and deodorizing components in this masterbatch can still maintain the deodorizing and deodorizing properties after being melted and treated at high temperature in the polymer, and are evenly dispersed and have good compatibility with the matrix. There is no need to add other functional particles, and it can be directly added to the polymer matrix for melt spinning, making the production of deodorizing and deodorizing fibers simple and convenient.

[0007] Furthermore, the herbal deodorizing extract is a Humulus japonicus extract.

[0008] Furthermore, the polyester PET is a powder of 45 to 60 meshes and has an intrinsic viscosity of 0.65 to 0.70 dl / g.

[0009] Furthermore, the size of the herbal deodorizing extract is 300-500nm.

[0010] Furthermore, the dispersant is talcum powder with a particle size of 4000 to 6000 meshes.

[0011] The second aspect of the present invention provides a method for preparing the herbal deodorizing masterbatch according to the first aspect of the present invention, comprising the following steps:

[0012] Drying: vacuum drying the polyester PET and herbal deodorant extract at 120°C to 180°C for 4 to 12 hours;

[0013] Weighing: weighing each component according to the mass fraction of the herbal deodorant masterbatch described in the first aspect of the present invention; Mixing: uniformly stirring the herbal deodorant extract, dispersant, polyester PET and antioxidant to obtain a mixed raw material;

[0014] Melt extrusion: adding the mixed raw materials into a twin-screw extruder, performing melt extrusion granulation, and preparing herbal deodorant masterbatch.

[0015] Furthermore, the twin-screw extruder adopts 11-zone temperature setting, the cooling temperature is 15-25° C., and the speed of the twin-screw extruder is 300-500 r / min.

[0016] Furthermore, the temperature of zone 11 of the twin-screw extruder is set to 130°C-245°C-250°C-255°C-260°C-235°C-235°C-230°C-230°C-230°C-250°C.

[0017] The third aspect of the present invention provides an herbal deodorizing fiber, which is prepared by melt spinning by mixing 75-90wt% polyester chips and 10-25wt% of the herbal deodorizing masterbatch of the first aspect of the present invention.

[0018] The fourth aspect of the present invention provides a herbal deodorizing fabric, which is woven using the herbal deodorizing fiber described in the third aspect of the present invention.

[0019] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the written contents of the specification, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the specific implementation methods of the present application are explained below. DETAILED DESCRIPTION

[0020] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments.

[0021] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description in conjunction with the specific embodiments listed. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0022] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0023] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0024] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0025] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0026] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0027] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0028] The first aspect of the present invention provides an herbal deodorizing masterbatch, which comprises the following components in parts by weight: 60 to 75 parts of polyester PET, 0.5 to 1 part of antioxidant, 0.5 to 1 part of dispersant, and 25 to 40 parts of herbal deodorizing extract; the herbal deodorizing extract comprises one or more of extracts of Humulus japonicus, Bambusa chinensis, Lichen, and Macrophylla serrata; the antioxidant is tea polyphenols, and the dispersant is talcum powder.

[0029] Polyester PET will produce a certain amount of thermal cracking or thermal oxidation degradation during the melt processing. Adding an appropriate amount of antioxidant can reduce the thermal oxidation degradation of polyester and protect its structural integrity. For herbal deodorant and deodorant extracts, a certain amount of thermal oxidation degradation will also occur at high temperatures. Therefore, adding tea polyphenol antioxidants can improve their stability under high temperature conditions and ensure that their deodorizing effect is not affected by the processing process. Adding an appropriate amount of tea polyphenol antioxidants is crucial to improving the stability of polyester and herbal deodorant and deodorant extracts during high-temperature processing. On the other hand, tea polyphenols will produce a certain amount of thermal decomposition reaction in the temperature range of 200-350℃, and the side chain structure will break and reorganize to generate products such as water and carbon dioxide.

[0030] Talc has more surface and edge active sites due to its larger surface area, which react with polyester PET to produce acidic functional groups, making it acidic during extrusion. The side chain structure of tea polyphenols shows higher stability under acidic conditions, which may be attributed to the acidic environment's ability to inhibit the oxidation and degradation reactions of the side chain structure.

[0031] At the same time, the lamellar structure of talc and its chemical stability and adsorption capacity can play a protective role, providing an excellent protective carrier for tea polyphenols and herbal extracts, improving their stability at high temperatures. In addition, the addition of talc improves the dispersibility of herbal extracts in the polyester matrix and prevents aggregation. Therefore, the combined use of tea polyphenols and talc not only improves the processing performance of the material, but also enhances its stability in high temperature environments and enhances its high temperature antioxidant properties.

[0032] The herbal deodorizing extract includes one or more extracts of Humulus sphaerocephala, Bamboo, Lichen, and Moss. The above herbal deodorizing extracts all contain one or more active substances such as benzoic acid, ursolic acid, and vanillin.

[0033] Benzoic acid has adsorptive properties due to the benzene ring and carboxyl group (-COOH) in its molecular structure. It can form hydrogen bonds with functional groups such as amino groups (-NH2) in odor-causing molecules, enhance the adsorption effect, effectively capture odor-causing molecules in the air, and thus reduce the spread of odor. In addition, benzoic acid can also combine with lipids in bacterial cell membranes to form carboxyl sodium salts, reduce the surface hydrophobicity of the cell membrane, affect its permeability, and inhibit bacterial growth. Benzoic acid can also directly act on the internal metabolic process of bacteria, interfere with bacterial physiological activities by producing esterification products, and block the odor produced when decomposing organic matter. The high temperature of melt spinning is 270°C, while the boiling point of benzoic acid is 249.2°C. It may be degraded through decarboxylation reaction (removing CO2). Adding tea polyphenols and talcum powder can inhibit this process, slow down the oxidation rate, and improve high temperature stability.

[0034] Ursolic acid has a significant antioxidant effect and can directly remove odor-causing molecules such as hydrogen sulfide (H2S), methyl mercaptan (CH3SH) and ammonia (NH3). These substances will generate malodorous compounds during the oxidation process. Ursolic acid blocks this process through its antioxidant effect and reduces the production of odor. At the same time, ursolic acid can block the metabolic pathways of bacteria and inhibit their growth and metabolism. Since many odor-causing molecules are produced when bacteria decompose organic matter, ursolic acid helps to maintain fresh air and prevent new unpleasant odors from being generated by the oxidation process. The melting point of ursolic acid is about 288-290°C, and it is relatively stable at 270°C during melt spinning, but the unsaturated bonds and functional groups therein are susceptible to high-temperature oxidation attacks. The addition of tea polyphenols and talc can provide protection and reduce heat-induced degradation.

[0035] Vanillin can effectively cover up bad smells with its fresh smell, providing users with a more comfortable environment. Vanillin has a boiling point of 285°C and is stable at the high temperature of melt spinning at 270°C, but its aldehyde group is easily oxidized at high temperatures. Adding tea polyphenols and talcum powder can basically block this process, prevent the aldehyde group from being oxidized to carboxyl groups, and maintain the stability of its structure and fragrance. Benzoic acid mainly reduces bad smells through physical and biochemical effects; ursolic acid reduces odor generation and inhibits bacterial growth through antioxidant effects; and vanillin temporarily improves air quality through masking effects.

[0036] All three need to add tea polyphenols and talcum powder in the high temperature environment of 270℃ for melt spinning to improve stability and effectiveness.

[0037] Different from the prior art, the above technical scheme provides a natural herbal antibacterial masterbatch for polymer fibers. The deodorizing and deodorizing components in this masterbatch can still maintain the deodorizing and deodorizing properties after being treated with high temperature in polyester melt, and are evenly dispersed and have good compatibility with the matrix. There is no need to add other functional particles, and it can be directly added to the polyester matrix for melt spinning, making the production of deodorizing and deodorizing fibers simple and convenient.

[0038] Furthermore, the herbal deodorizing extract is a Humulus japonicus extract. Compared with the extracts of Bamboo, Lichen and Moss, the Humulus japonicus extract has better deodorizing and deodorizing effects.

[0039] Furthermore, the polyester PET is a powder of 45 to 60 meshes and has an intrinsic viscosity of 0.65 to 0.70 dl / g.

[0040] If the particle size of PET powder is too fine, it will be easy to crystallize during the drying process, and sometimes even form gel, which will increase the melting temperature and is not conducive to the twin-screw melt processing. On the other hand, if PET chips are used, although some problems can be solved, it is not conducive to the uniform mixing of polyester with functional modifiers and other additives. Therefore, the best solution is to use polyester powder with a particle size of 45 to 60 mesh. Such powder can not only avoid the above problems, but also ensure that the specific viscosity of polyester is maintained at 0.65 to 0.7 dl / g after the functional masterbatch is prepared by a single screw extruder, which is neither too low nor too low, and can meet the needs of polyester spinning.

[0041] Furthermore, the size of the herbal deodorizing extract is 300 to 500 nm.

[0042] The resulting spinning difficulties, or the agglomeration caused by too fine a powder size, resulting in poor dispersibility, so the particle size of the herbal deodorant extract is set to 300-500 nm.

[0043] Furthermore, the dispersant is talcum powder with a particle size of 4000 to 6000 meshes.

[0044] Talc powder with a small particle size of 4000-6000 mesh has improved dispersibility and is more evenly distributed in PET polyester, which further promotes the occurrence of acidic reactions and strengthens the acidic characteristics of the material.

[0045] The second aspect of the present invention provides a method for preparing the herbal deodorizing masterbatch according to the first aspect of the present invention, comprising the following steps:

[0046] Drying: vacuum drying the polyester PET and herbal deodorant extract at 120°C to 180°C for 4 to 12 hours;

[0047] Weighing: weighing each component according to the mass fraction of the herbal deodorant masterbatch described in the first aspect of the present invention; Mixing: uniformly stirring the herbal deodorant extract, dispersant, polyester PET and antioxidant to obtain a mixed raw material;

[0048] Melt extrusion: adding the mixed raw materials into a twin-screw extruder, performing melt extrusion granulation, and preparing herbal deodorant masterbatch.

[0049] In order to make the polymer pre-crystallize, appropriately increase its glass transition temperature and melting point, and avoid premature softening and melting to block the feed port, the drying temperature setting range is 120℃~180℃.

[0050] Furthermore, the twin-screw extruder adopts 11-zone temperature setting, the cooling temperature is 15-25° C., and the speed of the twin-screw extruder is 300-500 r / min.

[0051] Furthermore, the temperature of zone 11 of the twin-screw extruder is set to 130°C-245°C-250°C-255°C-260°C-235°C-235°C-230°C-230°C-230°C-250°C.

[0052] The third aspect of the present invention provides a herbal deodorizing fiber, which is prepared by melt spinning by mixing polyester chips with the herbal deodorizing masterbatch described in the first aspect of the present invention.

[0053] Different from the existing technology, the preparation method of herbal deodorizing fiber does not require complicated pretreatment, and can be prepared by direct mixing and adding, which simplifies the operation process and significantly reduces production costs. In addition, this method also increases the content of active ingredients, effectively eliminates odors through chemical and sensory dual effects, and ensures excellent deodorizing effects.

[0054] The fourth aspect of the present invention provides a herbal deodorizing fabric, which is woven using the herbal deodorizing fiber described in the third aspect of the present invention.

[0055] In this embodiment, the herbal deodorant extract is purchased from Shanxi Lisheng Biotechnology Co., Ltd.

[0056] Example 1

[0057] (1) The component formula of herbal deodorizing polyester masterbatch is as follows:

[0058] 74.0 parts of polyester PET, 0.5 parts of antioxidant tea polyphenols, 0.5 parts of dispersant talc, and 25 parts of herbal deodorant extract powder.

[0059] The polyester PET is a powder of 45-60 meshes and has a characteristic viscosity of 0.65-0.70 dl / g; the antioxidant is a 300-500nm tea polyphenol powder; the dispersant is a 5000-mesh talc powder; and the herbal deodorant extract powder is a 300-500nm Humulus japonicus extract powder.

[0060] (2) Preparation of herbal deodorizing polyester masterbatch:

[0061] Material drying: vacuum dry the polyester PET and herbal deodorant extract powder at 120-180°C for 4-8 hours.

[0062] Weighing: Weigh the dried polyester PET, dispersant, antioxidant, and herbal deodorant extract powder according to the mass fractions in the herbal deodorant polyester masterbatch formula;

[0063] Mixing: Evenly mix the polyester PET, dispersant, antioxidant, and herbal deodorant extract powder at room temperature to obtain a uniformly distributed mixture;

[0064] Melt extrusion: add the mixture into a twin-screw extruder, perform melt extrusion granulation, and then dry to obtain herbal deodorizing polyester masterbatch. The twin-screw extruder adopts 11-zone temperature setting, the temperatures are 130℃-245℃-250℃-255℃-260℃-235℃-235℃-230℃-230℃-230℃-250℃, the cooling temperature is 15-25℃, and the screw speed of the twin-screw extruder is 300-500r / min.

[0065] (3) A method for preparing herbal deodorizing polyester fiber has the following steps:

[0066] Melt spinning: 85% polyester chips and 15% herbal deodorizing polyester masterbatch are melt-blended and then spun to obtain herbal deodorizing polyester fibers;

[0067] (4) Preparation of herbal deodorizing and deodorizing fabrics:

[0068] Yarn weaving: Fibers are drawn, twisted, etc. into yarns and made into textiles using conventional methods.

[0069] Embodiment 2:

[0070] The difference between this embodiment and embodiment 1 is that the composition of the herbal deodorizing polyester masterbatch is: 73.5 parts of polyester PET; 1 part of antioxidant; 0.5 parts of dispersant; 25 parts of herbal deodorizing extract powder, and the herbal deodorizing extract powder is Humulus japonicus extract powder.

[0071] Embodiment 3:

[0072] The difference between this embodiment and embodiment 1 is that the composition of the herbal deodorizing polyester masterbatch is: 73.5 parts of polyester PET; 0.5 parts of antioxidant; 1 part of dispersant; 25 parts of deodorizing functional powder, and the herbal deodorizing extract powder is Humulus japonicus extract powder.

[0073] Embodiment 4:

[0074] The difference between this embodiment and embodiment 1 is that the composition of the herbal deodorizing polyester masterbatch is: 73.0 parts of polyester PET; 1 part of antioxidant; 1 part of dispersant; 25 parts of deodorizing extract powder, and the herbal deodorizing extract powder is Humulus japonicus extract powder.

[0075] Embodiment 5:

[0076] The difference between this embodiment and embodiment 1 is that the composition of the herbal deodorizing polyester masterbatch is: 68.0 parts of polyester PET; 1 part of antioxidant; 1 part of dispersant; 30 parts of deodorizing extract powder, and the herbal deodorizing extract powder is Humulus japonicus extract powder.

[0077] Embodiment 6:

[0078] The difference between this embodiment and embodiment 1 is that the composition of the herbal deodorizing polyester masterbatch is: 68.0 parts of polyester PET; 1 part of antioxidant; 1 part of dispersant; 30 parts of deodorizing extract powder, and the herbal deodorizing extract powder is bamboo extract powder.

[0079] Embodiment 7:

[0080] The difference between this embodiment and embodiment 1 is that the composition of the herbal deodorizing polyester masterbatch is: 68.0 parts of polyester PET; 1 part of antioxidant; 1 part of dispersant; 30 parts of deodorizing extract powder, and the herbal deodorizing extract powder is lichen extract powder.

[0081] Comparative Example 1: The difference between this comparative example and Example 1 is that the herbal deodorizing masterbatch composition: 74.5 parts of polyester PET; 0.5 parts of dispersant; 25 parts of herbal deodorizing extract powder, and the herbal deodorizing extract powder is Humulus japonicus extract powder.

[0082] Comparative Example 2: The difference between this comparative example and Example 1 is that the herbal deodorizing masterbatch composition: 74.5 parts of polyester PET; 0.5 parts of antioxidant; 25 parts of herbal deodorizing extract powder, and the herbal deodorizing extract powder is Humulus japonicus extract powder.

[0083] Comparative Example 3: The difference between this comparative example and Example 1 is that: the herbal deodorizing masterbatch composition: 75.0 parts of polyester PET; 25 parts of herbal deodorizing extract powder, and the herbal deodorizing extract powder is Humulus japonicus extract powder.

[0084] The herbal extract of the masterbatch produced in Comparative Example 3 is severely degraded and is not suitable for preparing herbal deodorizing fibers and fabrics.

[0085] Performance testing:

[0086] 1. The deodorizing performance of the yarn woven fabrics in Examples 1-7 and Comparative Examples 1-2 was tested according to GB / T33610.1-2019 Determination of deodorizing performance of textiles.

[0087] Table 1 Deodorization performance test results of yarn fabrics of Examples 1-7 and Comparative Examples 1-2

[0088] name Ammonia reduction rate Isovaleric acid reduction rate Example 1 73.3％ 85.7％ Example 2 75.6％ 86.9％ Example 3 75.0％ 87.1％ Example 4 79.4％ 89.9％ Example 5 82.2％ 91.6％ Example 6 76.3％ 88.2％ Example 7 78.1％ 88.6％ Comparative Example 1 51.2％ 58.7％ Comparative Example 2 50.9％ 56.4％

[0089] As can be seen from Table 1, the deodorization performance test results of the yarn fabrics prepared in Examples 1-4 and Comparative Examples 1-2 show that the herbal deodorizing and deodorizing polyester fiber fabrics in Examples 1-4, after increasing the amount of dispersant and antioxidant added, have a significantly better reduction rate of ammonia and isovaleric acid than the case of a smaller amount added in Comparative Examples 1-2; and within a certain range, the greater the amount of dispersant and antioxidant added, the more obvious the chemical decomposition effect of the herbal deodorizing and deodorizing polyester fiber on odor, and the more obvious the deodorizing and deodorizing effect of the product. At the same time, the deodorizing performance test results of the yarn fabrics prepared in Examples 5 and 4 show that the herbal deodorizing and deodorizing polyester fiber fabrics in Example 5, after increasing the amount of herbal deodorizing and deodorizing extract powder added, have a significantly better reduction rate of ammonia and isovaleric acid than the case of a smaller amount added in Example 4; and within a certain range, the greater the amount of herbal deodorizing and deodorizing extract powder added, the more obvious the chemical decomposition effect of the herbal deodorizing and deodorizing polyester fiber on odor, and the more obvious the deodorizing and deodorizing effect of the product. The deodorizing performance test results of the yarn fabrics prepared in Examples 5-7 showed that under the condition of the same amount of herbal deodorizing extract powder added, the herbal deodorizing polyester fiber prepared by adding Humulus japonicus extract had the best deodorizing effect.

[0090] Finally, it should be noted that although the above embodiments have been described in the text of the specification of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the text of the specification of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A herbal deodorizing masterbatch, characterized in that: The masterbatch comprises the following components in parts by mass: 60-75 parts of polyester PET, 0.5-1 parts of antioxidant, 0.5-1 parts of dispersant, and 25-40 parts of herbal deodorizing extract; the herbal deodorizing extract comprises one or more extracts of Humulus japonicus, Bambusa chinensis, Lichen, and Macrophylla serrata; the antioxidant is tea polyphenols, and the dispersant is talcum powder.

2. The herbal deodorant masterbatch according to claim 1, characterized in that: The herbal deodorizing extract is a Humulus japonicus extract.

3. The herbal deodorizing masterbatch according to claim 1, characterized in that: The polyester PET is a powder with a mesh size of 45 to 60 and an intrinsic viscosity of 0.65 to 0.70 dl / g.

4. The herbal deodorizing masterbatch according to claim 1, characterized in that: The tea polyphenols and herbal deodorizing extracts have a size of 300 to 500 nm.

5. The herbal deodorizing masterbatch according to claim 1, characterized in that: The dispersant is talcum powder with a particle size of 4000-6000 meshes.

6. The method for preparing the herbal deodorizing masterbatch according to claim 1, characterized in that: The following steps are involved: Drying: vacuum drying the polyester and herbal deodorant extract at 120°C to 180°C for 4 to 12 hours; Weighing: weigh each component according to the mass fraction of the herbal deodorizing masterbatch according to claim 1; Mixing: Evenly stir the herbal deodorant extract, dispersant, polyester PET and antioxidant to obtain a mixed raw material; Melt extrusion: adding the mixed raw materials into a twin-screw extruder, performing melt extrusion granulation, and preparing herbal deodorant masterbatch.

7. The preparation method according to claim 6, characterized in that: The twin-screw extruder adopts 11-zone temperature setting, the cooling temperature is 15-25° C., and the speed of the twin-screw extruder is 300-500 r / min.

8. The preparation method according to claim 7, characterized in that: The temperature of zone 11 of the twin-screw extruder is set to 130°C-245°C-250°C-255°C-260°C-235°C-235°C-230°C-230°C-230°C-250°C.

9. A herbal deodorizing fiber, characterized in that: The fiber is prepared by mixing 75-90 wt% of polyester chips and 10-25 wt% of the herbal deodorizing masterbatch according to claim 1 and performing melt spinning.

10. A herbal deodorizing fabric, characterized in that: The fabric is woven using the herbal deodorizing fiber according to claim 9.