CN210962657U - Polylactic acid knitted fabric and sanitary towel - Google Patents
Polylactic acid knitted fabric and sanitary towel Download PDFInfo
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- CN210962657U CN210962657U CN201921553040.3U CN201921553040U CN210962657U CN 210962657 U CN210962657 U CN 210962657U CN 201921553040 U CN201921553040 U CN 201921553040U CN 210962657 U CN210962657 U CN 210962657U
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- polylactic acid
- skin
- knitted fabric
- fabric
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- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 75
- 239000004626 polylactic acid Substances 0.000 title claims abstract description 75
- 239000004744 fabric Substances 0.000 title claims abstract description 63
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- 239000007788 liquid Substances 0.000 claims abstract description 28
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000002250 absorbent Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 230000004224 protection Effects 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 3
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- 230000035699 permeability Effects 0.000 abstract description 7
- 238000001035 drying Methods 0.000 abstract description 6
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- 238000009940 knitting Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 57
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 10
- 230000002175 menstrual effect Effects 0.000 description 9
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- 241000894006 Bacteria Species 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
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Abstract
The utility model provides a polylactic acid knitted fabric and sanitary towel, polylactic acid knitted fabric includes the netted surface fabric body that has the antibacterial action that is formed by the knitting of yarn, the yarn is polylactic acid fibre, the mesh hole on the surface fabric body forms and is used for liquid, ventilative liquid permeation bleeder vent. The surface of the polylactic acid knitted fabric can form a natural and stable antibacterial environment, the antibacterial effect is good, the polylactic acid knitted fabric is good in compatibility with skin, and the use is safe; in addition, the polylactic acid knitted fabric is soft, has good moisture absorption, quick drying, heat preservation and air permeability, and has comfortable contact feeling with skin. The sanitary towel comprises a skin-friendly layer, wherein the skin-friendly layer is made of polylactic acid knitted fabric, so that the sanitary towel is good in antibacterial effect and skin-friendly and comfortable.
Description
Technical Field
The utility model relates to an antibiotic health supplies technical field, concretely relates to polylactic acid knitted fabric and sanitary towel.
Background
The sanitary towel is used for absorbing menstrual blood which flows out from the vagina when women have menstrual flow. The sanitary towel comprises a skin-friendly layer (surface layer), a flow guide layer, an absorption layer and a back glue layer which are sequentially arranged from top to bottom. In order to inhibit and eliminate the growth of bacteria and reduce the occurrence of gynecological inflammation in the using process of the sanitary towel, a small antibacterial chip is usually clamped between a skin-friendly layer and a flow guide layer of the sanitary towel, although the design can play a role in inhibiting bacteria, the antibacterial chip can only play a role in inhibiting bacteria around the chip after menstrual blood is absorbed, and cannot play a role in inhibiting bacteria in other parts except the chip.
In order to solve the technical problems, the sanitary towel with the integral antibacterial function of the skin-friendly layer is also available in the market, but the sanitary towel is mostly antibacterial with medicines, has low acid-base stability and thermal stability and unsafe use, and can cause the problem of poor antibacterial effect caused by the drug resistance of microorganisms to the medicines after long-term use.
SUMMERY OF THE UTILITY MODEL
The first purpose of the utility model is to provide a polylactic acid knitted fabric, which is knitted by polylactic acid fibers, and because the polylactic acid fibers have natural antibacterial performance, the polylactic acid knitted fabric can form a natural and stable antibacterial environment on the surface without processing, has good antibacterial effect, can effectively inhibit the growth of bacteria, and further reduces the occurrence of gynecological inflammation and skin diseases; meanwhile, the polylactic acid fiber has good compatibility with skin, so the polylactic acid knitted fabric is safe to use; in addition, the polylactic acid knitted fabric is soft, has good moisture absorption, quick drying, heat preservation and air permeability, and has comfortable contact feeling with skin.
The utility model discloses a second aim at provides an use above-mentioned polylactic acid knitted fabric as the sanitary towel on close skin layer, this sanitary towel's antibacterial effectual, and close skin comfortable.
In order to achieve the above purpose, the technical scheme adopted by the polylactic acid knitted fabric of the utility model is as follows: the polylactic acid knitted fabric comprises a net-shaped fabric body with an antibacterial effect, wherein the fabric body is knitted by yarns, the yarns are polylactic acid fibers, and the net-shaped holes in the fabric body form liquid-permeable and air-permeable holes.
The utility model discloses a polylactic acid knitted fabric adopts technical scheme is: the sanitary towel comprises a skin-friendly layer, the skin-friendly layer is made of polylactic acid knitted fabric, the polylactic acid knitted fabric comprises a net-shaped fabric body with an antibacterial effect, the fabric body is knitted by yarn, the yarn is polylactic acid fiber, and net-shaped holes in the fabric body form liquid-permeable and air-permeable holes for liquid permeation and air permeation.
Furthermore, the sanitary towel also comprises a flow guide layer, an absorption layer and a back glue layer, wherein the flow guide layer is arranged below the skin-friendly layer in sequence and used for guiding liquid to flow and accelerating diffusion, the absorption layer is used for absorbing and locking stored liquid, and the back glue layer is used for preventing liquid from permeating, and the skin-friendly layer, the flow guide layer, the absorption layer and the back glue layer are welded and pressed.
Further, the skin-friendly layer comprises a skin-friendly layer body, the left side and the right side of the middle of the skin-friendly layer body are respectively provided with a left protective wing and a right protective wing, and the joints of the skin-friendly layer body, the left protective wing and the right protective wing are respectively provided with a left liquid retaining strip and a right liquid retaining strip which are upwards raised and used for preventing side leakage.
Further, the flow guide layer is a 3D hot air non-woven fabric.
Further, the absorption layer is a fluff pulp layer, and macromolecular water-absorbent resin particles are dispersed in the fluff pulp layer.
Furthermore, the gum layer is a degradable leak-proof breathable PE film, and release paper is attached to the lower portion of the PE film.
Furthermore, the gum layer is degradable leak protection PU film of breathing freely, and the subsides are equipped with release paper under the PU film.
The polylactic acid fiber is prepared by adopting renewable starch raw materials such as polylactic acid and the like, fermenting to prepare lactic acid, polymerizing the lactic acid into resin, and spinning, namely the P L A fiber.
Properties of polylactic acid fiber
(1) Physical properties of polylactic acid fiber: polylactic acid fibers have not only high crystallinity but also transparency similar to polyester and polystyrene resins. Compared with the performances of other fibers, the polylactic acid fiber is a fiber with high crystallization, high orientation and high strength, the physical performance of the polylactic acid fiber is between that of terylene and chinlon, but the polylactic acid fiber has better hand feeling and drapability, lighter specific gravity, good ultraviolet resistance, better crimpability and shape retention;
(2) biodegradability of polylactic acid fiber: the root cause of the degradation of polylactic acid fibers is the hydrolysis of ester bonds on the polymer, and it is generally believed that their termini catalyze their hydrolysis, with the degradation process starting from the amorphous region. The hydrolysis rate is not only related to the chemical structure, molecular weight and molecular weight distribution morphology structure of the polymer and the sample size, but also depends on the external hydrolysis environment, such as the type of microorganism and the growth condition environment thereof, temperature, humidity, pH value and the like. For the polylactic acid fiber, the average decomposition time was 1 year by a series of degradation tests such as burying in soil, immersion in seawater, degradation in activated sludge, and the like. After the polylactic acid material is used, natural degradation, composting and combustion treatment can be carried out. The natural degradation of the polylactic acid fiber can not cause pollution to the environment, and almost NO NO is contained in the fuel gas during combustionxThe combustion heat is about 1/3 of polyethylene and polypropylene, so the polylactic acid fiber is a material which is beneficial to the global environment;
(3) the polylactic acid fiber has the following moisture absorption, quick drying and heat preservation performances: the polylactic acid fiber can play different functions according to different seasons. The fabric is worn in winter, and the moisture retention is higher than that of cotton and polyester fiber by more than 20%; the fabric is worn in summer, has good moisture permeability and water diffusivity, absorbs sweat and is quick-drying, can quickly take away body heat, and has refreshing feeling all the year round;
(4) the natural antibacterial performance of the polylactic acid fiber is as follows: due to the characteristics of polylactic acid, a natural and stable antibacterial environment can be formed on the surface of the fiber without processing, and yellow staphylococcus and the like are difficult to propagate. The polylactic acid fiber has weak acidity on the surface, the pH value is 6.0-6.5, the polylactic acid fiber is weak acidity, and the skin of a healthy human body is weak acidity, so that the polylactic acid fiber has good compatibility with weak acidity skin. Meanwhile, when a person exercises, sugar in the body becomes energy and lactic acid is formed in the body (muscle), and the lactic acid is accepted by the body, so that the polylactic acid fiber taking the lactic acid as the raw material is a safe material.
The utility model has the advantages that:
(1) the polylactic acid knitted fabric is knitted by polylactic acid fibers, and the polylactic acid fibers have natural antibacterial performance, so that a natural and stable antibacterial environment can be formed on the surface of the polylactic acid knitted fabric without processing, the antibacterial effect is good, the growth of bacteria can be effectively inhibited, and further gynecological inflammation and skin diseases are reduced;
(2) the polylactic acid fiber has good compatibility with weakly acidic skin, so the polylactic acid knitted fabric is safe to use;
(3) the polylactic acid knitted fabric is soft, has good moisture absorption, quick drying, heat preservation and air permeability, and has comfortable contact feeling with skin;
(4) the mesh holes on the fabric body form liquid and air permeable holes which have the function of increasing the air permeability of the fabric body and further improving the comfort feeling of contacting with the skin; the other side of the air and liquid permeable holes is used for improving the liquid circulation, so that when the fabric body is used as a skin-friendly layer of a sanitary towel, blood clots in menstrual blood and menstrual blood can rapidly enter the flow guide layer through the air and liquid permeable holes, the comfort feeling of contacting with the skin is improved, and the problem that the blood clots in the menstrual blood are accumulated on the surface of the fabric body to adhere to hair is avoided;
(5) the sanitary towel using the polylactic acid knitted fabric as the skin-friendly layer has good bacteriostatic effect and is skin-friendly and comfortable.
Drawings
Fig. 1 is a schematic structural view of a polylactic acid knitted fabric of the present invention;
FIG. 2 is a front view of the sanitary napkin of the present invention;
fig. 3 is a sectional view taken along line a-a of fig. 2.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses sanitary towel's embodiment, as shown in fig. 2 and 3, sanitary towel is including from top to bottom set gradually be used for with skin contact's close skin layer 1, be used for guiding the liquid flow direction and accelerating diffusion the water conservancy diversion layer 2, be used for absorbing and locking the absorbed layer 3 of storage liquid, prevent liquid infiltration's gum layer 4, carry out the butt fusion pressfitting through the ultrasonic pen between close skin layer 1, water conservancy diversion layer 2, absorbed layer 3 and the gum layer 4. The skin-friendly layer 1 is made of polylactic acid knitted fabric 01, as shown in fig. 1, the polylactic acid knitted fabric 01 comprises a net-shaped fabric body 011 with an antibacterial effect, which is knitted by yarns, the yarns are polylactic acid fibers, and the net-shaped holes on the fabric body 011 form liquid-permeable and breathable liquid-permeable vents 012.
The polylactic acid knitted fabric 01 is knitted by polylactic acid fibers, and the polylactic acid fibers have natural antibacterial performance, so that a natural and stable antibacterial environment can be formed on the surface of the polylactic acid knitted fabric 01 without processing, the antibacterial effect is good, the growth of bacteria can be effectively inhibited, and the occurrence of gynecological inflammation is further reduced.
The polylactic acid knitted fabric 01 is safe to use because the polylactic acid fibers are good in compatibility with the skin (the pH value difference is small).
The polylactic acid knitted fabric 01 is soft, has good moisture absorption, quick drying, heat preservation and air permeability, and has comfortable contact feeling with skin.
On one hand, the liquid and air permeable holes 012 have the function of increasing the air permeability of the fabric body 011, and further improving the comfort feeling of contacting with the skin; on the other hand, the liquid permeable and breathable holes 012 have the function of improving the liquid circulation, so that the blood clots in the menstrual blood and the menstrual blood can rapidly enter the flow guiding layer 2 through the liquid permeable and breathable holes 012, the comfort feeling of contacting with the skin is increased, and the problem of adhesion of hair due to the accumulation of the blood clots in the menstrual blood on the surface of the fabric body 011 is also avoided.
The skin-friendly layer 1 comprises a skin-friendly layer body 11, and in the embodiment, in order to prevent the sanitary napkin from side leakage in the using process, the left side and the right side of the middle part of the skin-friendly layer body 11 are respectively provided with a left protective wing 12 and a right protective wing 13. In order to further prevent the side leakage in the using process, a left liquid retaining strip 14 and a right liquid retaining strip 15 which are convex upwards and used for preventing the side leakage are respectively arranged at the connecting parts of the skin-friendly layer 11 body and the left protective wing and the right protective wing.
In this embodiment, the guiding layer 2 is a 3D hot air non-woven fabric, and the 3D hot air non-woven fabric can accelerate liquid absorption, uniformly guide flow, and prevent rewet.
In this embodiment, the absorption layer 3 is a fluff pulp layer, and the high molecular water absorbent resin particles are dispersed in the fluff pulp layer, and the high molecular water absorbent resin particles can improve the absorption and locking effects of the fluff pulp layer for storing liquid.
In this embodiment, gum layer 4 adopts degradable leak protection ventilative PE film, and the subsides are equipped with release paper under the PE film to in the preservation and use.
In other embodiments, the flow-directing layer may also be a spunbond nonwoven.
In other embodiments, the absorbent layer may also be a hydrophilic cotton fiber or a mesh gauze fabric.
In other embodiments, the back adhesive layer is also a degradable leak-proof breathable PU film, and release paper is attached to the lower part of the PU film.
The utility model discloses polylactic acid knitted fabric's specific embodiment, as shown in figure 1, polylactic acid knitted fabric's structural function and above-mentioned sanitary towel specific embodiment polylactic acid knitted fabric's structural function the same, for avoiding repetitiveness, no longer describe here.
Finally, the polylactic acid knitted fabric of the utility model is not only suitable for the skin-friendly layer of sanitary napkins, but also suitable for wet tissues, gauze towels, clothes and the like.
Claims (8)
1. A polylactic acid knitted fabric is characterized in that: the fabric comprises a net-shaped fabric body which is knitted by yarns and has an antibacterial effect, the yarns are polylactic acid fibers, and net-shaped holes on the fabric body form liquid-permeable and air-permeable holes.
2. A sanitary napkin comprising a skin-friendly layer characterized by: the skin-friendly layer is made of polylactic acid knitted fabric, the polylactic acid knitted fabric comprises a net-shaped fabric body with an antibacterial effect, the fabric body is knitted by yarns, the yarns are polylactic acid fibers, and the net-shaped holes in the fabric body form liquid-permeable and breathable holes.
3. A sanitary napkin as claimed in claim 2, wherein: the sanitary towel also comprises a flow guide layer, an absorption layer and a gum layer, wherein the flow guide layer is arranged below the skin-friendly layer and used for guiding liquid to flow and accelerating diffusion, the absorption layer is used for absorbing and locking stored liquid, and the gum layer is used for preventing liquid from permeating, and the skin-friendly layer, the flow guide layer, the absorption layer and the gum layer are welded and pressed.
4. A sanitary napkin as claimed in claim 3, wherein: the skin-friendly layer comprises a skin-friendly layer body, the left side and the right side of the middle of the skin-friendly layer body are respectively provided with a left protective wing and a right protective wing, and the joints of the skin-friendly layer body, the left protective wing and the right protective wing are respectively provided with a left liquid retaining strip and a right liquid retaining strip which are upwards raised and used for preventing side leakage.
5. A sanitary napkin as claimed in claim 3 or 4, wherein: the flow guide layer is a 3D hot air non-woven fabric.
6. A sanitary napkin as claimed in claim 3 or 4, wherein: the absorption layer is a fluff pulp layer, and macromolecular water-absorbent resin particles are dispersed in the fluff pulp layer.
7. A sanitary napkin as claimed in claim 3 or 4, wherein: the gum layer is degradable leak protection ventilative PE film, and the subsides are equipped with from type paper under the PE film.
8. A sanitary napkin as claimed in claim 3 or 4, wherein: the gum layer is degradable leak protection PU film of breathing freely, and the subsides are equipped with from type paper under the PU film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921553040.3U CN210962657U (en) | 2019-09-18 | 2019-09-18 | Polylactic acid knitted fabric and sanitary towel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921553040.3U CN210962657U (en) | 2019-09-18 | 2019-09-18 | Polylactic acid knitted fabric and sanitary towel |
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| Publication Number | Publication Date |
|---|---|
| CN210962657U true CN210962657U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921553040.3U Active CN210962657U (en) | 2019-09-18 | 2019-09-18 | Polylactic acid knitted fabric and sanitary towel |
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| Country | Link |
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| CN (1) | CN210962657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712094A (en) * | 2022-03-22 | 2022-07-08 | 广东景兴健康护理实业股份有限公司 | Edge leakage prevention weaving core sanitary towel with diversion blocking groove |
-
2019
- 2019-09-18 CN CN201921553040.3U patent/CN210962657U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712094A (en) * | 2022-03-22 | 2022-07-08 | 广东景兴健康护理实业股份有限公司 | Edge leakage prevention weaving core sanitary towel with diversion blocking groove |
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