CN216885548U - Moisture-absorbing breathable spunlaced nonwoven fabric for medical health - Google Patents
Moisture-absorbing breathable spunlaced nonwoven fabric for medical health Download PDFInfo
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- CN216885548U CN216885548U CN202122341439.9U CN202122341439U CN216885548U CN 216885548 U CN216885548 U CN 216885548U CN 202122341439 U CN202122341439 U CN 202122341439U CN 216885548 U CN216885548 U CN 216885548U
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Abstract
The utility model discloses a moisture-absorbing breathable spunlace nonwoven fabric for medical care and health, which comprises an inner layer, a middle layer and an outer layer which are compounded; the inner layer is carboxymethyl chitosan/ES fiber spunlace non-woven fabric, the middle layer is wood pulp spunlace non-woven fabric, and the outer layer is soybean protein fiber spunlace non-woven fabric; and an amino-terminated hyperbranched polymer is attached to the fiber surface of the wood pulp spunlace nonwoven fabric. The inner layer uses carboxymethyl chitosan/ES fiber spunlace non-woven fabric which has good moisture retention performance, conforms to the healing theory of wounds in a humid environment, and can provide more effective and faster treatment for chronic wounds with longer healing time. The wood pulp spunlace non-woven fabric used in the middle layer can absorb redundant liquid, and the inner layer cannot accumulate excessive liquid. The soybean protein fiber is easily biodegraded, has softer hand feeling and has moisture permeability.
Description
Technical Field
The utility model relates to the technical field of non-woven fabrics, in particular to a moisture-absorbing and breathable spunlace non-woven fabric for medical treatment and health.
Background
Nonwoven fabrics, also known as nonwovens, are made of oriented or random fibers. The non-woven fabric is produced by adopting polypropylene granules as a raw material through a continuous one-step method of high-temperature melting, spinning, laying a line and hot-pressing coiling. The non-woven fabric has the characteristics of moisture resistance, air permeability, light weight, no toxicity or irritation, low price, recycling and the like. At present, the application range of the non-woven fabric is wide, and the non-woven fabric can be applied to a plurality of fields such as life, medical treatment, industry and the like.
The spunlace nonwoven has short process flow, low cost, soft texture, good moisture absorption and permeability and certain strength, and is widely applied to the field of medical treatment and health.
The existing non-woven fabric for medical sanitation has good air permeability on the premise of meeting the requirement of wound healing. How to prepare a moisture-absorbing and breathable nonwoven fabric for medical hygiene becomes a need.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the moisture-absorbing and breathable spunlace nonwoven fabric for medical sanitation, wherein the carboxymethyl chitosan/ES fiber spunlace nonwoven fabric used as the inner layer has good moisture retention performance, conforms to the healing theory of wounds in a humid environment, and can provide more effective and faster treatment for chronic wounds with longer healing time. The use of a wood pulp spunlace nonwoven for the inner layer allows for the absorption of excess liquid without allowing the inner layer to accumulate too much liquid.
In order to solve the technical problem, the utility model aims to realize that:
the utility model relates to a moisture-absorbing breathable spunlace nonwoven fabric for medical care and health, which comprises an inner layer, a middle layer and an outer layer which are compounded; the inner layer is carboxymethyl chitosan/ES fiber spunlace non-woven fabric, the middle layer is wood pulp spunlace non-woven fabric, and the outer layer is soybean protein fiber spunlace non-woven fabric; and an amino-terminated hyperbranched polymer is attached to the fiber surface of the wood pulp spunlace nonwoven fabric.
On the basis of the above scheme and as a preferable scheme of the scheme: and a microporous membrane layer is compounded on one side of the outer layer, which is far away from the middle layer.
On the basis of the above scheme and as a preferable scheme of the scheme: the inner layer and the middle layer, and the middle layer and the outer layer are bonded through hot melt adhesive powder or a hot melt adhesive net film.
On the basis of the above scheme and as a preferable scheme of the scheme: the microporous membrane layer is a PTFE microporous membrane, a TPU microporous membrane or a polylactic acid microporous membrane.
On the basis of the above scheme and as a preferable scheme of the scheme: the surface density of the carboxymethyl chitosan/ES fiber spunlace nonwoven fabric, the wood pulp spunlace nonwoven fabric and the soybean protein fiber spunlace nonwoven fabric is 40-60 grams per square meter.
Compared with the prior art, the moisture absorption and ventilation non-woven fabric for medical and health has the following advantages:
the inner layer uses carboxymethyl chitosan/ES fiber spunlace non-woven fabric which has good moisture retention performance, conforms to the healing theory of wounds in a humid environment, and can provide more effective and faster treatment for chronic wounds with longer healing time.
The wood pulp spunlace non-woven fabric used in the middle layer can absorb redundant liquid, and the inner layer cannot accumulate excessive liquid.
The soybean protein fiber is easily biodegraded, has softer hand feeling and has moisture permeability.
Drawings
FIG. 1 is a schematic view of a moisture-absorbing, breathable, spunlace nonwoven fabric for medical care according to an exemplary embodiment;
fig. 2 is a schematic structural view of a moisture-absorbing and breathable spunlace nonwoven fabric for medical care according to the second embodiment.
The designations in the figures illustrate the following: 1-an inner layer; 2-an intermediate layer; 3-an outer layer; 4-microporous membrane.
Detailed Description
The utility model is further described with reference to the following figures and specific examples.
Example one
This embodiment will be described in detail with reference to fig. 1. The moisture absorption and ventilation spunlace nonwoven fabric for medical and health comprises an inner layer 1, a middle layer 2 and an outer layer 3 which are compounded; the inner layer 1 is carboxymethyl chitosan/ES fiber spunlace nonwoven fabric, the middle layer 2 is wood pulp spunlace nonwoven fabric, and the outer layer 3 is soybean protein fiber spunlace nonwoven fabric; and an amino-terminated hyperbranched polymer is attached to the fiber surface of the wood pulp spunlace non-woven fabric.
Chitosan is a deacetylated product of chitin, is the only natural basic polysaccharide discovered up to now, has biocompatibility and biodegradability, and can be used for stopping bleeding, preventing corrosion and promoting wound healing. Chitosan can activate a series of biological effects of an organism system and a mediation organism system, improves the system function of phagocytes, has bacteriostasis, and is widely applied to biomedical dressings. The carboxymethyl chitosan product, namely carboxymethyl chitosan, not only retains the excellent performance of chitosan, but also greatly improves the water solubility, antibacterial property and degradability of the chitosan. The carboxymethyl chitosan fiber can rapidly form hydrogel with a three-dimensional network structure after contacting deionized water, has good moisturizing performance, accords with the moist environment healing theory, can provide more effective and faster treatment for chronic wounds with longer healing time, and is applied to novel medical dressings and is greatly approved in the medical field.
In order to maintain the structure and the mechanical property of the dressing, a certain amount of polyolefin bi-component hot melt adhesive (ES) fiber is mixed into the raw materials. The ES fiber has chemical stability and a unique skin-core structure, cannot be corroded by a modifying reagent in a chitosan carboxymethyl modification reaction, the fiber skin layer with a lower hot melting point can be fused and bonded, and the core layer keeps the fiber state in the material, can be used as a framework to maintain the space structure of the fabric, and improves the hand feeling of the material.
In this example, 95g of tetraethylenepentamine was placed in a four-neck flask, cooled to 10 ℃ or lower with an ice-water bath, and a mixed solution of 43g of methyl acrylate and 90g of methanol was slowly added dropwise from a constant pressure funnel, wherein the molar ratio of the tetraethylenepentamine to the methyl acrylate was 1: 1. After the dropwise addition, reacting for 12h at low temperature (10-20 ℃) to obtain light yellow transparent liquid, then transferring the light yellow transparent liquid into a eggplant-shaped flask of a rotary evaporator, removing methanol by reduced pressure evaporation in a hot oil water bath, continuing the reduced pressure reaction for 4h after the temperature of the hot oil water bath is raised to 150 ℃, and obtaining the viscous light yellow hyperbranched polymer after the reaction is finished.
And then, dipping the wood pulp spunlace non-woven fabric into an amino-terminated hyperbranched polymer water solution, and drying to obtain the product, so that the amino-terminated hyperbranched polymer is attached to the surface of the fiber in the wood pulp spunlace non-woven fabric, and the moisture absorption performance of the wood pulp spunlace non-woven fabric can be improved.
Furthermore, the inner layer and the middle layer, and the middle layer and the outer layer are bonded through hot melt adhesive powder or a hot melt adhesive net film. The hot melt adhesive web used in this embodiment can provide the adhesive with breathability.
Further, the areal density of the carboxymethyl chitosan/ES fiber spunlace nonwoven fabric, the wood pulp spunlace nonwoven fabric and the soybean protein fiber spunlace nonwoven fabric is 40 to 60 grams per square meter, and in the embodiment, 40 grams per square meter is selected.
Example two
This embodiment will be described in detail with reference to fig. 2. The difference between the moisture-absorbing and breathable spunlace nonwoven fabric for medical and health use in the embodiment and the embodiment I is that a microporous membrane layer 4 is compounded on one side of the outer layer 3 away from the middle layer 2. Specifically, the microporous membrane layer 4 is a PTFE microporous membrane, a TPU microporous membrane, or a polylactic acid microporous membrane, and in this embodiment, the polylactic acid microporous membrane is selected to be degradable.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. The moisture-absorbing and breathable spunlace nonwoven fabric for medical and health is characterized by comprising an inner layer, a middle layer and an outer layer which are compounded; the inner layer is made of carboxymethyl chitosan/ES fiber spunlace non-woven fabric, the middle layer is made of wood pulp spunlace non-woven fabric, and the outer layer is made of soybean protein fiber spunlace non-woven fabric; and an amino-terminated hyperbranched polymer is attached to the fiber surface of the wood pulp spunlace nonwoven fabric.
2. The moisture-absorbing and breathable spunlace nonwoven fabric for medical care and hygiene according to claim 1, wherein a microporous membrane layer is compounded on the side of the outer layer away from the middle layer.
3. The moisture-absorbing and breathable spunlace nonwoven fabric for medical care and hygiene according to claim 1, wherein the inner layer and the middle layer and the outer layer are bonded through hot melt adhesive powder or a hot melt adhesive net film.
4. The moisture-absorbing and breathable spunlace nonwoven fabric for medical care and hygiene according to claim 2, wherein a PTFE microporous membrane, a TPU microporous membrane or a polylactic acid microporous membrane is used as the microporous membrane layer.
5. The moisture-absorbing and breathable spunlace nonwoven fabric for medical care and hygiene according to claim 1, wherein the areal density of each of the carboxymethyl chitosan/ES fiber spunlace nonwoven fabric, the wood pulp spunlace nonwoven fabric and the soy protein fiber spunlace nonwoven fabric is 40-60 grams per square meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122341439.9U CN216885548U (en) | 2021-09-25 | 2021-09-25 | Moisture-absorbing breathable spunlaced nonwoven fabric for medical health |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122341439.9U CN216885548U (en) | 2021-09-25 | 2021-09-25 | Moisture-absorbing breathable spunlaced nonwoven fabric for medical health |
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| Publication Number | Publication Date |
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| CN216885548U true CN216885548U (en) | 2022-07-05 |
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| CN202122341439.9U Active CN216885548U (en) | 2021-09-25 | 2021-09-25 | Moisture-absorbing breathable spunlaced nonwoven fabric for medical health |
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2021
- 2021-09-25 CN CN202122341439.9U patent/CN216885548U/en active Active
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