CN113616844B

CN113616844B - Sanitary towel capable of reducing peculiar smell and production process thereof

Info

Publication number: CN113616844B
Application number: CN202110934285.6A
Authority: CN
Inventors: 黄诗华; 贝荣武; 覃丽
Original assignee: Dongguan Jinbaoli Sanitary Products Co ltd
Current assignee: Dongguan Jinbaoli Sanitary Products Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2023-03-24
Anticipated expiration: 2041-08-13
Also published as: CN113616844A

Abstract

The invention discloses a sanitary towel capable of reducing peculiar smell, which comprises a surface layer, a bottom film and an absorption core body 3 positioned between the surface layer and the bottom film, wherein a sanitary towel chip is arranged between the absorption core body 3 and the surface layer, and the sanitary towel chip is prepared by the following preparation method: pulverizing, sieving, extracting, concentrating to obtain extractive solution; soaking the pure cotton non-woven fabric in the extract liquor for 90-120min, and drying; cutting the dried pure cotton non-woven fabric to obtain a sanitary towel chip; wherein the Chinese medicinal materials include cortex Dictamni Radicis, fructus evodiae, herba Taraxaci, fructus Cnidii and lignum Aquilariae Resinatum; also discloses a production process of the sanitary towel capable of reducing the peculiar smell. The prepared sanitary towel has high absorption capacity, and has the effects of bacteriostasis, sterilization and odor reduction, so that the experience of a user is improved.

Description

Sanitary towel capable of reducing peculiar smell and production process thereof

Technical Field

The invention relates to the field of sanitary products, in particular to a sanitary towel capable of reducing peculiar smell and a production process thereof.

Background

A sanitary napkin, a high absorbency article, is used to absorb menstrual fluid from the vagina during menstrual flow in women.

The sanitary napkin generally comprises a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet. The surface layer is a part directly contacted with the skin of a human body and is made of soft materials; the absorption core body is mainly made of cotton, non-woven fabric, paper pulp and other materials, has high absorption capacity and is used for absorbing menstrual blood; the carrier film is impermeable to water and retains menstrual blood in the absorbent core. The side edges of the sanitary napkin are designed primarily to prevent side leakage.

With the popularization and development of sanitary towels, multifunctional sanitary towels are provided in the market, such as cool sanitary towels added with menthol and other substances, and can help to improve stuffiness and discomfort; for example, a medicinal sanitary towel sprayed with radix Sophorae Flavescentis, fructus Cnidii, radix Stemonae, herba Leonuri, etc. for relieving dysmenorrhea.

The normal flora is formed by the co-existence and mutual restriction of a large number of normal parasitic bacteria in the vagina of a healthy female, and has a natural defense function on the invasion of pathogens. The normal flora is combined with a vaginal epithelial cell receptor through an adhesion mechanism of the normal flora to grow on the surface of a mucous membrane of the vaginal wall, participates in substance metabolism and nutrition conversion, and metabolites can prevent external bacteria from invading and maintain the internal environment of the vagina; and the normal flora is used as an antigen to stimulate a host to generate antibodies so as to enhance the immunity of the host.

During menstruation, due to endocrine function, the female body function is changed variously, the immunity is reduced, normal flora in the vagina is easy to destroy, or the female is easy to breed pathogenic bacteria during the menstruation, the pathogenic bacteria can generate enzyme in menstrual blood, and peculiar smells such as fishy smell, sour smell and the like can be generated by the enzyme or other vaginal secretions. The above problems are difficult to solve by using cool sanitary napkins or medicinal sanitary napkins for relieving dysmenorrhea, and thus improvements are required.

Disclosure of Invention

In view of the deficiencies of the prior art, the present application provides a sanitary napkin and a process for producing the same that reduces odor during menstruation.

In a first aspect, the present application provides a sanitary napkin capable of reducing odor during menstruation, which adopts the following technical scheme:

a sanitary towel capable of reducing peculiar smell sequentially comprises a surface layer, a sanitary towel chip, an absorption core body and a bottom film from top to bottom, wherein the sanitary towel chip is prepared by the following preparation method:

1) Pulverizing the Chinese medicinal materials, sieving, leaching, extracting, and concentrating to obtain extractive solution.

2) Soaking the pure cotton non-woven fabric in the extract liquor for 90-120min, and drying.

3) And cutting the dried pure cotton non-woven fabric to obtain the sanitary towel chip.

Wherein, the step 1) is implemented according to the following steps: pulverizing the traditional Chinese medicine raw materials, sieving with a 60-mesh sieve, adding ethanol and anion water, and soaking for 300-400h to obtain a soaking solution; heating the soaking solution at 70-85 deg.C for 2.5-4 hr, and filtering to obtain extract; the leachate is extracted to obtain an extraction liquid, and the extraction temperature is kept between 88 and 95 ℃.

The step 2) is implemented according to the following steps: soaking pure cotton non-woven fabric in the extract for 30-40min, taking out from the extract, and drying at 20-25 deg.C for 30-45min; soaking the first-time dried pure cotton non-woven fabric in the extract liquor for 30-40min, taking out the pure cotton non-woven fabric from the extract liquor, and drying the pure cotton non-woven fabric for 30-45min at the temperature of 20-25 ℃; soaking the second-time dried pure cotton non-woven fabric in the extract for 30-40min, taking out the pure cotton non-woven fabric from the extract and drying the pure cotton non-woven fabric at 20-25 ℃.

Wherein the Chinese medicinal materials include cortex Dictamni Radicis, fructus evodiae, herba Taraxaci, fructus Cnidii and lignum Aquilariae Resinatum.

After the pure cotton non-woven fabric is soaked in the extract containing the effective components of the cortex dictamni, the fructus evodiae, the dandelion, the fructus cnidii and the agilawood, the effective components in the traditional Chinese medicine raw materials can be attached to a sanitary towel chip, and the effective components in the traditional Chinese medicine raw materials can play the effect of the sanitary towel when a woman uses the sanitary towel in the menstrual period, so that the use is convenient.

After the cortex dictamni, the fructus evodiae, the dandelion, the fructus cnidii and the agilawood are crushed, extracted and extracted, the effective components in the raw materials are mixed, and then mutually promoted and mutually supported to exert the effects of bacteriostasis and sterilization, so that the growth and multiplication of bacteria in menstrual blood and other vaginal secretions in the sanitary towel are inhibited, further peculiar smell is removed, sterilization and bacteriostasis are realized, and the safety and the comfort of the sanitary towel used in the menstrual period of women are improved. In addition, the sanitary towel can absorb menstrual blood in the using process, and bacteriostatic and bactericidal components in the sanitary towel can be volatilized to the vagina, so that the flora environment in the vagina is adjusted, the generation of harmful bacteria is reduced, and the effects of further removing peculiar smell and relieving inflammation in the vagina are achieved. Besides, after the effective components in the cortex dictamni, the fructus evodiae, the dandelion, the fructus cnidii and the agilawood are extracted and mixed, the effects of dispelling cold, relieving pain, diminishing swelling, detoxifying, clearing heat, drying dampness, warming kidney, tonifying yang, inducing diuresis, treating stranguria, promoting qi circulation, relieving vomit and the like can be achieved, and then the occurrence of vaginal and intrauterine diseases is reduced.

As the vagina inflammation is a common disease and a frequently encountered disease of gynecology and is also a source of a plurality of diseases, when the inflammation in the vagina is relieved, a series of symptoms such as abnormal leucorrhea, pruritus, burning pain, peculiar smell and the like can be effectively improved correspondingly.

Moreover, the components contained in the sanitary towel are all natural plant extracts, so that the sanitary towel is not easy to generate drug resistance in crowds after long-term use, can continuously exert the curative effect, has few side effects and adverse reactions, and is suitable for wide crowds.

Further, the cortex dictamni, fructus evodiae, dandelion, fructus cnidii, agilawood, ethanol and anion water are in parts by weight: (15-25): (10-20): (15-25): (15-25): (15-25): (1000-1200): (12-18).

The inventor finds that when the pure cotton non-woven fabric soaked by the extract liquid prepared from the traditional Chinese medicine components and the proportion is applied to the sanitary towel, the traditional Chinese medicine components can inhibit and kill bacteria breeding in menstrual blood and other secretions of the sanitary towel, can fully volatilize to the vagina, inhibit harmful bacteria breeding in the vagina, regulate normal flora of the vagina, keep the vagina in a good state, and further relieve inflammation and reduce the generation of vaginal diseases.

Further, the traditional Chinese medicine raw materials also comprise glabrous greenbrier rhizome, and the cortex dictamni, evodia rutaecarpa, dandelion, fructus cnidii, agilawood, glabrous greenbrier rhizome, ethanol and deionized water are in parts by weight: (15-25): (10-20): (15-25): (15-25): (15-25): (25-35): (1100-1300): (15-20).

The inventor finds that the extract liquid obtained after the traditional Chinese medicine components are mixed and proportioned, crushed, extracted and extracted has a large amount of antibacterial and bactericidal components, and various components supplement each other and support each other, so that when the extract liquid is applied to a sanitary towel, the extract liquid can be emitted to the vagina when secretion is discharged during the menstrual period of women, and the effects of removing peculiar smell and relieving inflammation are achieved.

Further, the pure cotton non-woven fabric in the step 2) is pretreated, and the method is implemented according to the following steps: soaking the pure cotton non-woven fabric in a mixed solution of a treating agent and water for 45-75min, heating at 45-60 ℃ in the soaking process, wherein the weight part ratio of the treating agent to the water is 1.

The treating agent comprises the following components in parts by weight: 8-12 parts of citric acid, 6-10 parts of dodecyl dimethyl amine oxide, 6-12 parts of salt and 55-65 parts of deionized water.

The surface adhesive property of the pure cotton non-woven fabric is improved after the pure cotton non-woven fabric is soaked by the treating agent prepared from citric acid, dodecyl dimethyl amine oxide, salt and deionized water in a corresponding proportion, so that components in the traditional Chinese medicine raw material extract can be more stably and stably attached to the pure cotton non-woven fabric, the retention time of the traditional Chinese medicine components on the pure cotton non-woven fabric is prolonged, and the effective antibacterial and bactericidal effects of the traditional Chinese medicine components can still be exerted after long-term storage.

In a second aspect, the present application provides a process for producing a sanitary napkin having reduced odor during menstruation, comprising the steps of: preparing a sanitary towel chip, preparing an absorption core, coating a surface layer, coating a bottom film, coating release paper, folding and coating, sealing, cutting, molding, sterilizing and packaging.

The surface layer adopts a hot air punching film, and when the surface layer is covered on the surfaces of the sanitary towel chip and the absorption core, the hot air punching film is beneficial to volatilization of effective bacteriostatic and bactericidal components on the sanitary towel chip; the non-woven fabric is adopted to encapsulate the sanitary towel, so that the effective components in the sanitary towel chip can be kept to be non-volatile and diffused before the sanitary towel is used, and the effects of bacteriostasis, sterilization and odor removal of the sanitary towel can be still kept after the sanitary towel is stored for a long time.

In conclusion, in the using process of the sanitary towel prepared by the scheme, the traditional Chinese medicine formula can play a role in bacteriostasis and sterilization, and can reduce the propagation and growth of microorganisms on the surface of the sanitary towel, so that the generation of microbial secretion is reduced, and the effect of removing peculiar smell is achieved.

In addition, in the using process, the formula in the sanitary towel chip is volatilized to the vagina of a woman, so that the effects of bacteriostasis and sterilization can be further achieved, the stability of the environment in the vagina is maintained, the occurrence of vagina inflammation diseases is reduced, the secretion of abnormal vaginal secretion is reduced, and the effects of further removing peculiar smell and conditioning abnormal leucorrhea are achieved.

Drawings

FIG. 1 is a front view of a sanitary napkin of the present application;

fig. 2 is a cross-sectional view of a sanitary napkin of the present application.

Reference numerals: 1. a surface layer; 2. a base film; 3. an absorbent core; 4. a sanitary napkin core.

Detailed Description

The raw materials for producing the sanitary napkin in the examples of the present application are all commercially available.

Example 1

Step 1, preparing a sanitary towel chip 4:

1) Respectively pulverizing cortex Dictamni Radicis 0.15kg, fructus evodiae 0.1kg, herba Taraxaci 0.15kg, fructus Cnidii 0.15kg and lignum Aquilariae Resinatum 0.15kg, sieving with 60 mesh sieve, mixing, adding ethanol 10kg and anion water 0.12kg, and soaking for 300 hr to obtain soaking solution;

2) Heating the soak solution at 70 deg.C for 4 hr, and filtering to obtain extract;

3) Extracting the extract to obtain an extraction liquid, wherein the extraction temperature is 75 ℃;

4) Soaking the pure cotton non-woven fabric in the extraction liquid for 90min, and drying at 80 ℃;

5) And cutting the dried pure cotton non-woven fabric into rectangular shapes to obtain the sanitary towel chip 4.

Step 2, preparation of the absorption core body 3: the swelling paper is sterilized by ultraviolet rays, then is coated inside by SAP polymer absorbent paper, and is cut to obtain the absorption core body 3.

Step 3, coating the surface layer 1: evenly punch to hot-blast cotton and obtain surface course 1, arrange sanitary towel chip 4 in surface course 1's lower surface, then overturn surface course 1 and sanitary towel chip 4 simultaneously for the upper surface of surface course 1 is to last, and absorption core 3 covers in surface course 1 upper surface top, and sanitary towel chip 4 is located between surface course 1 and the absorption core 3 this moment, carries out the indent and makes surface course 1, sanitary towel chip 4 and absorption core 3 fixed.

Step 4, coating the base film 2: the PE breathable basement membrane 2 is covered on one surface, far away from the surface layer 1, of the absorption core body 3, and edge sealing and cutting forming are carried out on the whole periphery, so that the peripheral sides of the basement membrane 2 and the surface layer 1 are fixedly sealed.

Step 5, laminating release paper: and sticking back adhesive release paper and wing release paper on the surface of the bottom film 2 far away from the surface layer 1, and then slitting to obtain the sanitary towel.

Step 6: turning over and wrapping: the sanitary towel is folded or folded in three and then put into the non-woven fabric inner bag.

And 7, sealing, cutting and molding: and sealing, cutting and molding the non-woven fabric inner bag, and performing ultraviolet disinfection to obtain a sanitary towel finished product.

Example 2

The difference from example 1 is that the sanitary napkin chip 4 in step 1 is prepared by a different process:

1) Respectively pulverizing cortex Dictamni Radicis 0.15kg, fructus evodiae 0.1kg, herba Taraxaci 0.15kg, fructus Cnidii 0.15kg and lignum Aquilariae Resinatum 0.15kg, sieving with 60 mesh sieve, mixing, adding ethanol 10kg and anion water 0.12kg, and soaking for 360 hr to obtain soaking solution;

2) Heating the soak solution at 80 deg.C for 3 hr, and filtering to obtain extract;

3) Extracting the extract to obtain an extraction liquid, wherein the extraction temperature is 95 ℃;

4) Soaking the pure cotton non-woven fabric in the extraction liquid for 105min, and drying at 80 ℃;

5) And cutting the dried pure cotton non-woven fabric into a rectangular shape to obtain the sanitary towel chip 4.

Example 3

1) Respectively pulverizing cortex Dictamni Radicis 0.15kg, fructus evodiae 0.1kg, herba Taraxaci 0.15kg, fructus Cnidii 0.15kg and lignum Aquilariae Resinatum 0.15kg, sieving with 60 mesh sieve, mixing, adding ethanol 10kg and anion water 0.12kg, and soaking for 400 hr to obtain soaking solution;

2) Heating the soak solution at 85 deg.C for 2.5h, and filtering to obtain extract;

3) Extracting the leached substance to obtain an extract liquid, wherein the extraction temperature is 88 ℃;

4) Soaking the pure cotton non-woven fabric in the extraction liquid for 120min, and drying at 80 ℃;

Example 4

The difference from the embodiment 2 is that the soaking and drying process of the pure cotton non-woven fabric in the extraction liquid is as follows: soaking the pure cotton non-woven fabric in the extraction liquid for 30min, taking out the pure cotton non-woven fabric from the extraction liquid, and drying the pure cotton non-woven fabric for 45min at the temperature of 20 ℃; soaking the first-time dried pure cotton non-woven fabric in the extraction liquid for 30min, taking out the pure cotton non-woven fabric from the extraction liquid, and drying the pure cotton non-woven fabric at 20 ℃ for 45min; and then soaking the secondary dried pure cotton non-woven fabric in the extract liquor for 30min, taking out the pure cotton non-woven fabric from the extract liquor and drying the pure cotton non-woven fabric at the temperature of 20 ℃.

Example 5

The difference from the embodiment 2 is that the soaking and drying process of the pure cotton non-woven fabric in the extraction liquid is as follows: soaking the pure cotton non-woven fabric in the extraction liquid for 40min, heating in the soaking process, maintaining the temperature of the extraction liquid at 45 ℃, taking out the extraction liquid, and drying for 30min at 20 ℃; soaking the first-time dried pure cotton non-woven fabric in the extraction liquid for 40min, heating in the soaking process, maintaining the temperature of the extraction liquid at 45 ℃, taking out the extraction liquid, and drying for 30min at 20 ℃; and soaking the second-time dried pure cotton non-woven fabric in the extraction liquid for 40min, heating in the soaking process, maintaining the temperature of the extraction liquid at 45 ℃, taking out the extraction liquid, and drying at 20 ℃.

Example 6

The difference from the embodiment 2 is that the soaking and drying process of the pure cotton non-woven fabric in the extraction liquid is as follows: soaking the pure cotton non-woven fabric in the extraction liquid for 40min, heating in the soaking process, maintaining the temperature of the extraction liquid at 50 ℃, taking out the extraction liquid, and drying for 30min at 25 ℃; soaking the first-time dried pure cotton non-woven fabric in the extraction liquid for 40min, heating in the soaking process, maintaining the temperature of the extraction liquid at 50 ℃, taking out the extraction liquid, and drying for 30min at 25 ℃; soaking the second-time dried pure cotton non-woven fabric in the extractive solution for 40min, heating while maintaining the temperature of the extractive solution at 50 deg.C, taking out from the extractive solution, and drying at 25 deg.C.

Examples 7 to 11

The difference from example 6 is that the raw materials in the preparation process of the sanitary napkin chip 4 in step 1 have different compositions and proportions, and the following table is referred to specifically.

Table 1 examples 7-11 sanitary napkin chip 4 preparation process with different raw material compositions and proportions

Example 12

The difference from example 10 is that the pure cotton nonwoven fabric was pretreated:

adding 0.08kg of citric acid, 0.06kg of dodecyl dimethyl amine oxide and 0.06kg of salt into 0.55L of deionized water for dissolving, and uniformly stirring to obtain a treating agent; 0.1L of treating agent and 6L of water are uniformly mixed; and then placing the pure cotton non-woven fabric in a mixed solution of a treating agent and water for soaking for 45min, taking out and drying, and then placing the pure cotton non-woven fabric in an extract liquor for soaking.

Example 13

adding 0.1kg of citric acid, 0.08kg of dodecyl dimethyl amine oxide and 0.08kg of salt into 0.6L of deionized water for dissolving, and uniformly stirring to obtain a treating agent; 0.1L of treating agent and 6L of water are uniformly mixed; and then placing the pure cotton non-woven fabric into a mixed solution of a treating agent and water for soaking for 60min, taking out and drying, and then placing the pure cotton non-woven fabric into the extract liquor for soaking.

Example 14

adding 0.12kg of citric acid, 0.1kg of dodecyl dimethyl amine oxide and 0.12kg of salt into 0.65L of deionized water for dissolving, and uniformly stirring to obtain a treating agent; 0.1L of treating agent and 6L of water are uniformly mixed; and then placing the pure cotton non-woven fabric in a mixed solution of a treating agent and water for soaking for 75min, taking out and drying, and then placing the pure cotton non-woven fabric in an extraction liquid for soaking.

Example 15

The difference from example 13 is that heating was carried out at a temperature of 45 ℃ during the pretreatment.

Example 16

The difference from example 13 is that heating was carried out at a heating temperature of 25 ℃ during the pretreatment.

Comparative example 1

The difference from example 1 is that the sanitary napkin is free of the core 4.

Comparative example 2

The difference from the embodiment 1 is that the extract liquid is uniformly sprayed on the pure cotton non-woven fabric, and then the pure cotton non-woven fabric is dried to obtain the sanitary towel chip 4.

Comparative example 3

The difference from the embodiment 1 is that the sanitary towel is not provided with the sanitary towel core 4, the hot air cotton is soaked in the extract liquor for 90min and is dried at 80 ℃.

Performance test

Test No.)

50 volunteers having bad smell in the private parts of menstrual period were collected and divided into 5 groups of 10 persons, and the sanitary napkins prepared in example 1, example 9, comparative example 1, comparative example 2 and comparative example 3 were used in the menstrual period, respectively, and the use results thereof were recorded in table 2.

TABLE 2 test results

The evaluation table of the feeling of use experience of the above volunteers 3 months after using the above sanitary napkin is as follows.

TABLE 3 evaluation Table of feeling of experience

Test No. two

100mL of physiological saline containing hemoglobin and 1g of epithelial cells was poured into the sanitary napkin cover 1 of examples 1 and 9 and comparative examples 1 to 3, and after all of the saline was absorbed, the product was placed in a closed environment at a temperature and humidity close to the private parts of women who had menstrual periods, in which an open culture flask containing Escherichia coli, a culture flask containing Staphylococcus aureus, a culture flask containing Candida albicans, and a culture flask containing Trichomonas were placed, and after 1 hour, 2 hours, and 3 hours, the total number of colonies in the culture flasks was measured using the culture solutions in the four culture flasks, respectively, to obtain Table 4.

Table 4 results of the second test

Experiment three

The sanitary napkins of examples 1 to 16 and comparative examples 1 to 3 were stored indoors, and the sanitary napkins stored indoors for 1 year were each taken out and subjected to the test as described above.

After 100mL of physiological saline containing hemoglobin and 1g of epithelial cells was poured into the surface layer 1 of the sanitary napkin of examples 1 to 16 to be tested, and after all of the saline was absorbed, the product was placed in a closed environment at a temperature and humidity close to the private parts of women who passed through the menstrual period, in which an open culture flask containing Escherichia coli, a culture flask containing Staphylococcus aureus, a culture flask containing Candida albicans, and a culture flask containing trichomonas were placed, and after 3 hours, the total number of colonies in the culture broth was measured from each of the four culture flasks, to obtain Table 5.

TABLE 5 test three results

According to the table 2 and the table 3, the sanitary napkins of the embodiment 1, the embodiment 9, the comparative example 2 and the comparative example 3 can effectively reduce the peculiar smell of the female in the private parts of the menstrual period in the using process, and can further reduce the peculiar smell of the female in the private parts of the menstrual period, improve the abnormal symptom of the leucorrhea and provide good experience for the female; while comparative example 1 had no effect of reducing the female menstrual private odor at all. Therefore, the sanitary towel which is good in peculiar smell removing effect and capable of improving abnormal leucorrhea can be prepared by combining the components and the proportion of the traditional Chinese medicine raw materials and the preparation process of the sanitary towel.

As shown in table 4, in the sanitary napkin of comparative example 1, the contents of escherichia coli, staphylococcus aureus, candida albicans and trichomonas in the culture bottle were all increased during the test, and it can be seen that the sanitary napkin of comparative example 1 can not have the sterilization and bacteriostasis effects on the above four bacteria; the data of example 1, example 9, comparative example 2 and comparative example 3 show that the contents of escherichia coli, staphylococcus aureus, candida albicans and trichomonas are all greatly reduced compared with that of comparative example 1, it can be seen that the sterilization and bacteriostasis effects can be effectively achieved by adopting the combination of the traditional Chinese medicine raw materials, and the sanitary towel and the culture bottle are not in direct contact in the second test, so that the effective sterilization and bacteriostasis components in the sanitary towel can enter the culture bottle through volatilization and airflow flowing, and the sterilization and bacteriostasis effects can be achieved.

After the sanitary napkins prepared in the embodiments 1 and 9 are used for 3 hours, the sterilizing and bacteriostasis effects are superior to those of the comparative examples 2 and 2.

As shown in table 5, the sanitary napkins prepared in examples 1 and 9 of the present application have significantly better bactericidal and bacteriostatic effects than comparative examples 2 and 3 after 1 year of storage, and the data of comparative examples 1, 2 and 3 show that the total number of colonies of staphylococcus aureus, candida albicans and trichomonas is close to that of comparative example 1 after one year of storage in comparative examples 2 and 3, and the sanitary napkins of comparative examples 2 and 3 have significantly reduced and nearly no bactericidal effects after one year of storage.

The data of the embodiment 1 and the embodiment 9 show that the sterilizing and bacteriostatic effect of the sanitary napkin chip 4 is improved after the rhizoma smilacis glabrae is added; the data of the embodiment 2 and the embodiments 4 to 6 show that the sterilization and bacteriostasis effects of the sanitary towel are improved after the pure cotton non-woven fabric is soaked for 3 times and dried at low temperature, and the combination of the soaking processes and the drying processes at low temperature for multiple times can ensure that the sterilization and bacteriostasis components in the extract can be effectively attached to the sanitary towel chip 4, and the attachment effect is good, so that the sanitary towel can exert the sterilization and bacteriostasis effects for a long time; the data of example 5 and examples 12-16 show that after the pure cotton non-woven fabric is pretreated by the treating agent, the effective bactericidal and bacteriostatic components in the extract can be better attached to the sanitary towel chip 4, and the bactericidal and bacteriostatic components are not easy to volatilize after being attached for a long time, so that the bactericidal and bacteriostatic effects of the sanitary towel can be stably exerted for a long time.

Claims

1. A sanitary napkin capable of reducing odor, comprising a surface layer (1), a bottom film (2) and an absorbing core (3) arranged between the surface layer (1) and the bottom film (2), characterized in that: a sanitary towel core (4) is arranged between the absorption core body (3) and the surface layer (1), and the sanitary towel core (4) is prepared by the following preparation method:

1) Pulverizing, sieving, extracting, concentrating to obtain extractive solution;

2) Soaking the pure cotton non-woven fabric in the extract liquor for 90-120min, and drying;

3) Cutting the dried pure cotton non-woven fabric to obtain a sanitary towel chip (4);

wherein the Chinese medicinal materials include cortex Dictamni Radicis, fructus evodiae, herba Taraxaci, fructus Cnidii and lignum Aquilariae Resinatum;

the step 1) is implemented according to the following steps: pulverizing the traditional Chinese medicine raw materials, sieving with a 60-mesh sieve, adding ethanol and deionized water, and soaking for 300-400h to obtain a soaking solution; heating the soaking solution at 70-85 deg.C for 2.5-4 hr, and filtering to obtain extract; extracting the leached matter to obtain extract liquid;

the extraction temperature is kept between 88 and 95 ℃;

the traditional Chinese medicine raw materials also comprise glabrous greenbrier rhizome, and the cortex dictamni, fructus evodiae, dandelion, common cnidium fruit, agilawood, glabrous greenbrier rhizome, ethanol and deionized water are in parts by weight: (15-25): (10-20): (15-25): (15-25): (15-25): (25-35): (1100-1300): (15-20);

the step 2) is implemented according to the following steps: soaking the pure cotton non-woven fabric in the extract liquor for 30-40min, taking out the pure cotton non-woven fabric from the extract liquor, and drying the pure cotton non-woven fabric for 30-45min at the temperature of 20-25 ℃; soaking the first-time dried pure cotton non-woven fabric in the extract liquor for 30-40min, taking out the pure cotton non-woven fabric from the extract liquor, and drying the pure cotton non-woven fabric for 30-45min at the temperature of 20-25 ℃; soaking the secondary dried pure cotton non-woven fabric in the extract liquor for 30-40min, taking out the pure cotton non-woven fabric from the extract liquor and drying the pure cotton non-woven fabric at the temperature of 20-25 ℃;

pretreating the pure cotton non-woven fabric in the step 2), and specifically performing the following steps: soaking the pure cotton non-woven fabric in a mixed solution of a treating agent and water for 45-75min, wherein the weight part ratio of the treating agent to the water is 1;

the treating agent comprises the following components in parts by weight: 8-12 parts of citric acid, 6-10 parts of dodecyl dimethyl amine oxide, 6-12 parts of salt and 55-65 parts of deionized water;

heating the pretreatment process at 45-60 ℃;

the method comprises the following steps: the sanitary towel comprises a sanitary towel chip (4) preparation, an absorption core body (3) preparation, a surface layer (1) coating, a bottom film (2) coating, release paper coating, folding and coating, sealing and cutting molding and sterilizing packaging.