阅读说明：本技术 抗菌面料 (Antibacterial fabric ) 是由 张子睿 姜亚 于 2020-05-25 设计创作，主要内容包括：本发明公开一种抗菌面料,包括基布层和位于基布层上的防护层,此防护层由母料熔喷加工而成,此母料进一步由以下组分组成：聚丙烯组合物100份、聚氨酯弹性体20～25份、烷基聚氧乙烯醚5～10份、环氧烷烃类化合物3～5份、硬脂基辛基二甲基硫酸甲酯铵2～3份、羧甲基纤维素钠1～2份、硬脂酸钙1～2份、抗氧化剂0.1～0.3份；所述聚丙烯组合物由均聚聚丙烯和嵌段共聚丙烯按照10：4～6的重量份混合而成。本发明抗菌面料提高了防护层的亲水性,从而改善了面料过滤效果,尤其是对细菌和病毒的过滤效果。(The invention discloses an antibacterial fabric, which comprises a base cloth layer and a protective layer positioned on the base cloth layer, wherein the protective layer is formed by melt-blowing master batch, and the master batch further comprises the following components: 100 parts of a polypropylene composition, 20-25 parts of a polyurethane elastomer, 5-10 parts of alkyl polyoxyethylene ether, 3-5 parts of an alkylene oxide compound, 2-3 parts of stearyl octyl dimethyl ammonium methyl sulfate, 1-2 parts of sodium carboxymethyl cellulose, 1-2 parts of calcium stearate and 0.1-0.3 part of an antioxidant; the polypropylene composition is prepared from homopolymerized polypropylene and block copolymerized propylene according to the weight ratio of 10: 4-6 parts by weight. The antibacterial fabric improves the hydrophilicity of the protective layer, thereby improving the filtering effect of the fabric, in particular the filtering effect on bacteria and viruses.)

1. An antibacterial fabric is characterized in that: the protective layer comprises a base cloth layer (1) and a protective layer (2) positioned on the base cloth layer (1), wherein the protective layer (2) is formed by melt-blowing a master batch, and the master batch further comprises the following components:

100 parts of a polypropylene composition, namely 100 parts of,

20-25 parts of a polyurethane elastomer,

5-10 parts of alkyl polyoxyethylene ether,

3-5 parts of alkylene oxide compound,

2-3 parts of stearyl octyl dimethyl ammonium methyl sulfate,

1-2 parts of sodium carboxymethylcellulose,

1-2 parts of calcium stearate,

0.1-0.3 part of antioxidant;

the polypropylene composition is prepared from homopolymerized polypropylene and block copolymerized propylene according to the weight ratio of 10: 4-6 parts by weight.

2. The antibacterial fabric according to claim 1, characterized in that: 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 antibacterial fabric according to claim 1, characterized in that: the base cloth layer (1) and the protective layer (2) are connected through an adhesive or hot pressing.

4. The antibacterial fabric according to claim 1, characterized in that: the melt flow rate of the homopolymerized polypropylene is 30-100 g/10min under the conditions of 230 ℃ and 2.16kg load.

5. The antibacterial fabric according to claim 1, characterized in that: the melt flow rate of the block copolymerization propylene is 5-60 g/10min at 230 ℃ under the load condition of 2.16 kg.

Technical Field

The invention relates to the field of fabrics, in particular to an antibacterial 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. The existing medical fabric has poor wettability, and reduces the filtering effect on bacteria and viruses. Therefore, the development of a medical protective clothing fabric with improved fabric filtering effect, especially on bacteria and viruses, is a technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide an antibacterial fabric, which improves the hydrophilicity of a protective layer, thereby improving the filtering effect of the fabric, in particular the filtering effect on bacteria and viruses.

In order to achieve the purpose, the invention adopts the technical scheme that: an antibacterial fabric is characterized in that: the protective layer is formed by melt-blowing masterbatch, and the masterbatch further comprises the following components:

100 parts of a polypropylene composition, namely 100 parts of,

20-25 parts of a polyurethane elastomer,

5-10 parts of alkyl polyoxyethylene ether,

3-5 parts of alkylene oxide compound,

2-3 parts of stearyl octyl dimethyl ammonium methyl sulfate,

1-2 parts of sodium carboxymethylcellulose,

1-2 parts of calcium stearate,

0.1-0.3 part of antioxidant;

the polypropylene composition is prepared from homopolymerized polypropylene and block copolymerized propylene according to the weight ratio of 10: 3-5 parts by weight.

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.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

according to the antibacterial fabric, the master batch of the protective layer on the base fabric layer is based on a polypropylene composition formed by mixing homo-polypropylene and block copolymerization propylene, and 2-3 parts of stearyl octyl dimethyl ammonium methyl sulfate and 1-2 parts of sodium carboxymethyl cellulose are further added, so that the hydrophilicity of the protective layer is improved, and the filtering effect of the fabric is improved, particularly the filtering effect on bacteria and viruses.

Drawings

FIG. 1 is a schematic structural diagram of the antibacterial fabric of the present invention.

In the above drawings: 1. a base cloth layer; 2. and (4) a protective layer.

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: an antibacterial fabric comprises a base fabric layer 1 and a protective layer 2 positioned on the base fabric layer 1, wherein the protective layer 2 is formed by melt-blowing a master batch, and the master batch further comprises the following components as shown in table 1:

TABLE 1

Components	Example 1	Example 2	Example 3	Example 4
					Polypropylene composition	100 portions of	100 portions of	100 portions of	100 portions of
Polyurethane elastomer	22 portions of	25 portions of	20 portions of	24 portions of
					Alkyl polyoxyethylene ether	8 portions of	6 portions of	8 portions of	6 portions of
Alkylene oxide compound	3 portions of	4 portions of	4 portions of	5 portions of
					Stearyl octyl dimethyl ammonium methyl sulfate	2.5 parts of	2 portions of	2.2 parts of	3 portions of
Sodium carboxymethylcellulose	1.5 parts of	1 part of	1.2 parts of	1.5 parts of
					Calcium stearate	1.8 parts of	2 portions of	1.5 parts of	1.2 parts of
Antioxidant agent	0.2 part	0.1 part	0.1 part	0.2 part

The polypropylene composition of example 1 was prepared from homopolypropylene and block copolypropylene according to 10: 5, the base cloth layer 1 and the protective layer 2 are connected through 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: 5, 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 manufacturing process for the antibacterial fabric comprises a base cloth layer 1 and a protective layer 2 positioned on the base cloth layer 1, wherein the protective layer 2 is formed by melt-blowing a master batch, and the master batch is obtained by the following steps:

stirring and mixing a polypropylene composition, a polyurethane elastomer, alkyl polyoxyethylene ether, a hydrocarbon compound, 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 protective clothing fabric comprises a base cloth layer 1 and a protective layer 2 positioned on the base cloth layer 1, wherein the protective layer 2 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

The polypropylene composition of comparative example 2 was prepared from homo-polypropylene and block co-propylene according to 10: 5 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

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, compared with the comparative example, the water contact angle of the fabric of the embodiment of the invention is less than 30 degrees, so that the hydrophilicity of the protective layer is improved, and the filtering effect of the fabric, especially the filtering effect on bacteria and viruses is improved.

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.