CN111590982A - Manufacturing method of breathable medical protective clothing fabric - Google Patents

Manufacturing method of breathable medical protective clothing fabric Download PDF

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Publication number
CN111590982A
CN111590982A CN202010481983.0A CN202010481983A CN111590982A CN 111590982 A CN111590982 A CN 111590982A CN 202010481983 A CN202010481983 A CN 202010481983A CN 111590982 A CN111590982 A CN 111590982A
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China
Prior art keywords
parts
protective clothing
manufacturing
clothing fabric
medical protective
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Withdrawn
Application number
CN202010481983.0A
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Chinese (zh)
Inventor
张子睿
姜亚
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Kunshan Huayang New Material Co ltd
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Kunshan Huayang New Material Co ltd
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Priority to CN202010481983.0A priority Critical patent/CN111590982A/en
Publication of CN111590982A publication Critical patent/CN111590982A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00—Producing multi-layer textile fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The invention discloses a method for manufacturing a breathable medical protective clothing fabric, which comprises the following steps: stirring and mixing the polypropylene composition, the polyolefin elastomer, alkyl polyoxyethylene ether, hydrocarbon compound, polyoxypropylene diamine, stearyl octyl dimethyl ammonium methyl sulfate, sodium carboxymethyl cellulose, calcium stearate and antioxidant; the polypropylene composition is formed by mixing homopolymerized polypropylene and block copolymerization propylene; the polypropylene composition is prepared from homopolymerized polypropylene and block copolymerized propylene according to the weight ratio of 10: 3-5 parts by weight; adding the obtained mixture into a double-screw extruder, controlling the rotating speed of the screw to be 200-300 revolutions per minute, and extruding a reaction product at the extrusion temperature of 120-150 ℃. The invention reduces the electromagnetic interference on medical electronic equipment, and improves the fabric filtering effect, in particular to the filtering effect on bacteria and viruses.

Description

Manufacturing method of breathable medical protective clothing fabric
Technical Field
The invention relates to the field of fabrics, in particular to a manufacturing method of a breathable medical protective clothing fabric.
Background
The new infections discovered and identified worldwide are increasing almost every year, the common cause of infection being exposure to dust contamination or contamination of dusty air on the surfaces of surgeons and patients and pathogens, and therefore, health care workers need to wear protective clothing to reduce the risk of infection. With the development of science and technology, medical personnel often need diagnose the disease with the help of medical electronic equipment, but because current medical protective clothing surface fabric very easily produces electrostatic interference medical electronic equipment, lead to test data to have great error, seriously influence patient's effect of diagnosing. Therefore, the technical problem to be solved by the technical personnel in the field is urgent to develop an antistatic medical protective clothing fabric which can effectively block bacteria, has good antistatic performance and reduces the test error of medical electronic equipment.
Disclosure of Invention
The invention aims to provide a method for manufacturing a breathable medical protective clothing fabric, which can effectively block bacteria, and simultaneously has the electrostatic voltage of less than 220V and the surface resistance of 4 × 107~8×107The omega range reduces electromagnetic interference on medical electronic equipment, and improves the filtering effect of the fabric, particularly the filtering effect on bacteria and viruses.
In order to achieve the purpose, the invention adopts the technical scheme that: the manufacturing method of the breathable medical protective clothing fabric comprises a base cloth layer and a protective layer positioned on the base cloth layer, wherein the protective layer is formed by melt-blowing a master batch, and the master batch further comprises the following components: 100 parts of a polypropylene composition, 15-30 parts of a polyolefin elastomer, 3-8 parts of alkyl polyoxyethylene ether, 3-6 parts of an alkylene oxide compound, 1-3 parts of polyoxypropylene diamine, 1-2 parts of stearyl octyl dimethyl ammonium methyl sulfate, 0.4-1 part of sodium carboxymethyl cellulose, 1-2 parts of calcium stearate and 0.1-0.3 part of an antioxidant;
the masterbatch is obtained by the following steps:
step one, stirring and mixing the polypropylene composition, the polyolefin elastomer, alkyl polyoxyethylene ether, a hydrocarbon compound, polyoxypropylene diamine, stearyl octyl dimethyl ammonium methyl sulfate, sodium carboxymethyl cellulose, calcium stearate and an antioxidant; the polypropylene composition is formed by mixing homopolymerized polypropylene and block copolymerization propylene; the polypropylene composition is prepared from homopolymerized polypropylene and block copolymerized propylene according to the weight ratio of 10: 3-5 parts by weight;
secondly, adding the obtained mixture into a double-screw extruder, controlling the rotating speed of a screw to be 200-300 revolutions per minute, and then extruding a reaction product at the extrusion temperature of 120-150 ℃;
and step three, adding an extrusion product obtained in the double-screw extruder into a cooling water tank for cooling, and then, granulating in a granulator to obtain the master batch.
The technical scheme of further improvement in the technical scheme is as follows:
1. in the above scheme, the base fabric layer and the protective layer are connected through an adhesive or hot pressing.
2. In the scheme, the antioxidant is pentaerythritol tetrakis [ methyl- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] or octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.
3. In the scheme, the melt flow rate of the homopolymerized polypropylene is 30-100 g/10min under the conditions of 230 ℃ and 2.16kg load.
4. In the scheme, the melt flow rate of the block copolymerization propylene is 5-60 g/10min under the conditions of 230 ℃ and 2.16kg load.
5. In the scheme, the temperature in the double-screw extruder in the second step is controlled to be about 180 ℃.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the invention relates to a manufacturing method of a breathable medical protective clothing fabric, which is a master batch of a protective layer positioned on a base cloth layerBased on a polypropylene composition formed by mixing homo-polypropylene and block copolymerization propylene, 1-3 parts of polyoxypropylene diamine and 0.5-2 parts of stearyl octyl dimethyl ammonium methyl sulfate are further added, so that the static voltage is less than 220V while bacteria can be effectively blocked, and the surface resistance is 4 × 107~8×107Omega range, has good antistatic performance, thereby reducing electromagnetic interference to medical electronic equipment.
2. According to the manufacturing method of the breathable medical protective clothing fabric, the sodium carboxymethylcellulose is further added to the masterbatch of the protective layer on the base cloth layer based on stearyl octyl dimethyl ammonium methyl sulfate, so that the hydrophilicity of the protective layer is improved, the fabric filtering effect is improved, and particularly the filtering effect on bacteria and viruses is improved.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the illustrated orientations or positional relationships, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is further described below with reference to the following examples:
examples 1 to 4: the manufacturing method of the breathable medical protective clothing fabric comprises a base cloth layer and a protective layer positioned on the base cloth layer, wherein the protective layer is formed by melt-blowing a master batch, and the master batch further comprises the following components as shown in table 1:
TABLE 1
Figure 681378DEST_PATH_IMAGE002
The polypropylene composition of example 1 was prepared from homopolypropylene and block copolypropylene according to 10: 3, the base cloth layer 1 and the protective layer 2 are connected by an adhesive, and the thickness of the protective layer 2 is 37 g/sq m;
the polypropylene composition of example 2 was prepared from homopolypropylene and block copolypropylene according to 10: 4, the base cloth layer 1 and the protective layer 2 are connected by hot pressing, and the thickness of the protective layer 2 is 53 g/sq m;
the polypropylene composition of example 3 was prepared from homopolypropylene and block copolypropylene according to 10: 3, the base cloth layer 1 and the protective layer 2 are connected by hot pressing, and the thickness of the protective layer 2 is 42 g/sq m;
the polypropylene composition of example 4 was prepared from homopolypropylene and block copolypropylene according to 10: 4, the base fabric layer 1 and the protective layer 2 are connected through an adhesive, and the thickness of the protective layer 2 is 51 g/sq.
The melt flow rate of the homopolymerized polypropylene is 30-100 g/10min under the conditions of 230 ℃ and 2.16kg load.
The melt flow rate of the block copolymerization propylene is 5-60 g/10min under the conditions of 230 ℃ and 2.16kg load.
The masterbatch is obtained by the following steps:
step one, stirring and mixing a polypropylene composition, a polyolefin elastomer, alkyl polyoxyethylene ether, a hydrocarbon compound, polyoxypropylene diamine, stearyl octyl dimethyl ammonium methyl sulfate, sodium carboxymethyl cellulose, calcium stearate and an antioxidant; the polypropylene composition is formed by mixing homopolymerized polypropylene and block copolymerization propylene;
step two, adding the obtained mixture into a double-screw extruder, controlling the temperature in the double-screw extruder to be about 180 ℃ and the rotating speed of the screw to be 300 revolutions per minute, and then extruding a reaction product at the extrusion temperature of 140 ℃;
and step three, adding an extrusion product obtained in the double-screw extruder into a cooling water tank for cooling, and then, granulating in a granulator to obtain the master batch.
Comparative examples 1 to 2: the manufacturing method of the medical protective clothing fabric comprises a base cloth layer and a protective layer positioned on the base cloth layer, wherein the protective layer is formed by melt-blowing a master batch, and the master batch further comprises the following components as shown in a table 2:
TABLE 2
Figure 26908DEST_PATH_IMAGE004
The polypropylene composition of comparative example 2 was prepared from homo-polypropylene and block co-propylene according to 10: 3 parts by weight.
The polypropylene composition of comparative example 3 was prepared from homo-polypropylene and block co-propylene according to 10: 3 parts by weight.
The masterbatch manufacturing process of the comparative example is the same as in the example.
The properties of the fabrics of the protective clothing prepared in the above examples 1-4 and comparative examples 1-2 are shown in Table 3:
TABLE 3
Figure 442846DEST_PATH_IMAGE006
Note: the water contact angles of the examples and comparative examples are according to ISO 15989: method 2004.
As shown in the evaluation results of Table 3, the examples of the present invention have a surface resistance of 4 × 10, which is effective in blocking bacteria and has an electrostatic voltage of less than 220V, compared with the comparative examples7~8×107The range of omega is high in antistatic performance, so that electromagnetic interference on medical electronic equipment is reduced; in addition, the water contact angle of the fabric is small, and improvesThe hydrophilicity of the protective layer improves the filtering effect of the fabric, especially the filtering effect on bacteria and viruses.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (6)

1. A manufacturing method of a breathable medical protective clothing fabric is characterized by comprising the following steps: the medical protective clothing fabric comprises a base cloth layer and a protective layer positioned on the base cloth layer, wherein the protective layer is formed by melt-blowing masterbatch, and the masterbatch further comprises the following components: 100 parts of a polypropylene composition, 15-30 parts of a polyolefin elastomer, 3-8 parts of alkyl polyoxyethylene ether, 3-6 parts of an alkylene oxide compound, 1-3 parts of polyoxypropylene diamine, 1-2 parts of stearyl octyl dimethyl ammonium methyl sulfate, 0.4-1 part of sodium carboxymethyl cellulose, 1-2 parts of calcium stearate and 0.1-0.3 part of an antioxidant;
the masterbatch is obtained by the following steps:
step one, stirring and mixing the polypropylene composition, the polyolefin elastomer, alkyl polyoxyethylene ether, a hydrocarbon compound, polyoxypropylene diamine, stearyl octyl dimethyl ammonium methyl sulfate, sodium carboxymethyl cellulose, calcium stearate and an antioxidant; the polypropylene composition is formed by mixing homopolymerized polypropylene and block copolymerization propylene; the polypropylene composition is prepared from homopolymerized polypropylene and block copolymerized propylene according to the weight ratio of 10: 3-5 parts by weight;
secondly, adding the obtained mixture into a double-screw extruder, controlling the rotating speed of a screw to be 200-300 revolutions per minute, and then extruding a reaction product at the extrusion temperature of 120-150 ℃;
and step three, adding an extrusion product obtained in the double-screw extruder into a cooling water tank for cooling, and then, granulating in a granulator to obtain the master batch.
2. The method for manufacturing the breathable medical protective clothing fabric as claimed in claim 1, wherein the method comprises the following steps: the antioxidant is tetra [ methyl- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, or beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid octadecyl ester.
3. The method for manufacturing the breathable medical protective clothing fabric as claimed in claim 1, wherein the method comprises the following steps: the base cloth layer and the protective layer are connected through an adhesive or hot pressing.
4. The method for manufacturing the breathable medical protective clothing fabric as claimed in claim 1, wherein the method comprises the following steps: the melt flow rate of the block copolymerization propylene is 5-60 g/10min at 230 ℃ under the load condition of 2.16 kg.
5. The method for manufacturing the breathable medical protective clothing fabric as claimed in claim 1, wherein the method comprises the following steps: the melt flow rate of the homopolymerized polypropylene is 30-100 g/10min under the conditions of 230 ℃ and 2.16kg load.
6. The method for manufacturing the breathable medical protective clothing fabric as claimed in claim 1, wherein the method comprises the following steps: the temperature in the twin-screw extruder in the second step was controlled to be about 180 ℃.
CN202010481983.0A 2020-06-01 2020-06-01 Manufacturing method of breathable medical protective clothing fabric Withdrawn CN111590982A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN202010481983.0A CN111590982A (en) 2020-06-01 2020-06-01 Manufacturing method of breathable medical protective clothing fabric

Publications (1)

Publication Number Publication Date
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