Antibacterial medical fabric

A kind of fabric and medical technology, applied in the field of new medical fabrics, can solve the problems of increasing the burden of medical workers, reducing the breathability of fabrics, reducing flexibility and comfort

Inactive Publication Date: 2013-06-05
KUSN ZHOUSHI TOWN JISHENG CLOTHING FACTORY
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AI-Extracted Technical Summary

Problems solved by technology

Therefore, they have to wear thick protective clothing, or carry out strict and multi-level sterilization treatment in the working environment. Although these protective measures can play a certain role, they greatly reduce the comfort of medical workers; at the same time , it is also difficult to ensure the efficiency of protection
[0003] The current protective clothing fabrics generally adopt a multi-layer structure. Most people think that the more layers of protective...
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Method used

As shown in Figure 1, be the structural representation of a kind of antibacterial medical fabric of the embodiment of the present invention; This fabric is made up of surface layer 1 and inner layer 2 fabrics, and described surface layer 1 is a waterproof antibacterial film layer, and described inner Layer 2 is a fabric fabric layer, and glue 3 is coated between the surface layer 1 and the inner layer 2 to achieve close fit.
B) the laminating of fabric, the surface layer 1 film that makes is coated on inner layer 2 fabrics, coating thickness is the thermosetting type PVC viscose glue 3 of 15um between two layers of fabrics, and by heating and pressurizing Treatment to improve the bonding strength and strength between the fabric layers; wherein, the heating temperature is controlled at about 60°C, the pressure is 5kg/cm*cm, and the time is 10 minutes;
Liner 2 is the blended fabric of natural cotton, spandex and terylene, and natural cotton content is 60%-70% in this layer of fabric, and this proportioning makes inner layer have good thermal performance; Liner 2 fabrics are warp knitting The fabric has a weaving density of 128*130 and a thicknes...
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Abstract

The invention provides an antibacterial medical fabric which is composed of a surface layer fabric and an inner layer fabric. The surface layer fabric is a waterproof antibacterial thin film layer, the inner layer fabric is a textile fabric layer, and adhesive glue is coated between the surface layer fabric and the inner layer fabric to achieve tight fitting. According to the antibacterial medical fabric, a double-layer structure design is used, the thin film materials of the surface layer fabric can resist the liquid of water, body fluid, blood and the like, the silver nano particles contained in the thin film materials can prevent bacteria from intruding effectively, and thus a good protective function of medical staff is achieved; the inner layer fabric is reasonable in composition proportion, soft in texture and good in warm keeping and air breathing performance, and thus comfortableness and freeness of the medical staff in work are achieved.

Application Domain

Synthetic resin layered productsProtective garment +1

Technology Topic

Adhesive glueAir breathing +4

Image

  • Antibacterial medical fabric

Examples

  • Experimental program(1)

Example Embodiment

[0016] In order to enable those skilled in the art to better understand the technical solutions of the present invention, and to make the above-mentioned objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail with reference to the embodiments and the accompanying drawings. .
[0017] Such as figure 1 Shown is a schematic structural diagram of an antibacterial medical fabric according to an embodiment of the present invention; the fabric is composed of a surface layer 1 and an inner layer 2. The surface layer 1 is a waterproof antibacterial film layer, and the inner layer 2 is a fabric layer , The adhesive 3 is coated between the surface layer 1 and the inner layer 2 to achieve close adhesion.
[0018] The main raw material of the surface layer 1 of the antibacterial medical fabric mentioned in the present invention is thermoplastic polyurethane, which contains quantitative nano silver particles, which can play a good antibacterial effect; the content of nano silver particles is 3%-4%, and the particle size is 400 mesh; The preparation process of the surface layer 1 includes: raw material drying, heating and mixing, extruder extrusion, primary expansion, cooling, secondary expansion and coiling, etc. The thickness of the produced film is about 35-45um.
[0019] The inner layer 2 is a blended fabric of natural cotton, spandex and polyester. The natural cotton content in the fabric of this layer is 60%-70%. This ratio enables the inner layer to have good thermal performance; the inner layer 2 is a warp knitted fabric. The woven density is 128*130, and the thickness is about 0.3mm.
[0020] Adhesive 3 is made of thermosetting PVC material with a coating thickness of about 15um.
[0021] The specific preparation process of the fabric is as follows:
[0022] a) Prepare the inner layer. The inner layer 2 is a blended fabric of natural cotton, spandex and polyester. The natural cotton content of this layer is 60%-70%, the polyester content is 25%-37%, and the spandex content is 3%-5. %; The inner layer 2 fabric is a warp knitted fabric, and its main preparation steps are: 1) Prepare a blended yarn strip, and pass natural cotton, spandex and polyester through clearing, opening, drawing, roving, spun yarn, winding, and adding Twisting and other processes are made into a blended yarn strip, the diameter of the blended yarn is 0.14mm; 2) Prepare the warp knitted fabric, on a flat knitting machine, the 3 blended yarn strips are formed into loops in the transverse direction of the cloth surface, and the weaving density is 128*130, the thickness of the fabric is about 0.3mm;
[0023] b) Prepare the surface layer. The main raw material of surface layer 1 fabric is thermoplastic polyurethane, which contains quantitative nano silver particles, which can play a good antibacterial effect; the content of nano silver particles is 3%-4%, and the particle size is 400 mesh;
[0024] The preparation process includes:
[0025] 1) Dry the raw materials, dry the polyurethane at 89°C-90°C for 2-3 hours to avoid bubbles in the prepared film;
[0026] 2) Heat the mixture. First, put the polyurethane in a heating furnace and increase the temperature to 260℃-280℃ to make the polyurethane in a molten state. Then, slowly add nano silver particles and stir well to make the degree of fusion reach more than 99%. , The mixing time is controlled at 40-50 minutes;
[0027] 3) Extruder extrusion, extruder temperature is controlled at 190℃-200℃, extrusion pressure is 200kg/cm*cm, extrusion volume is controlled at 10-12kg/H, extruded film thickness is about 0.2 mm;
[0028] 4) Once expansion, the extruded film is attached to the release paper and then enters the expansion roll for one expansion. The pressure on the expansion roll is 80kg/cm*cm, the roll speed is 30r/m, and the thickness of the extruded film is about 70um after one expansion;
[0029] 5) Cooling, the extruded film after primary expansion is cooled on a cooling roll, the temperature of the cooling roll is 5℃-10℃, and the roll speed is 50r/m;
[0030] 6) Secondary expansion, the cooled extruded film is attached to the release paper again and enters the expansion roll for secondary expansion. The temperature on the secondary expansion roll is 40℃-60℃, the pressure is 50kg/cm*cm, and the roll speed 60r/m, the thickness of the extruded film after the second expansion is about 35-45um;
[0031] 7) Rewinding, take the film to be prepared for use, the speed of the reeling roller is 40r/m;
[0032] b) For the bonding of the fabric, the obtained surface layer 1 film is attached to the inner layer 2 fabric, and the thermosetting PVC viscose 3 with a thickness of 15um is coated between the two layers of fabric, and is heated and pressurized to Improve the bonding strength and strength between the fabric layers; among them, the heating temperature is controlled at about 60°C, the pressure is 5kg/cm*cm, and the time is 10 minutes;
[0033] d) Hot-press setting, put the fabric into an oven, control the temperature at 40℃-50℃, and bake for 2 hours to further stabilize the performance and appearance of the fabric.
[0034] The invention discloses an antibacterial medical fabric, which is characterized in that the fabric adopts a double-layer structure design, the film material selected for the surface fabric can repel water, body fluids, blood and other liquids, and the nano silver particles contained in it can effectively prevent germs Invasion, it has a good protective effect on medical workers; and the inner fabric has a reasonable composition ratio, soft texture, good warmth and air permeability, making medical workers more comfortable and comfortable at work.
[0035] The protection scope of the present invention is not limited to this, and any changes or replacements that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

PUM

PropertyMeasurementUnit
Graininess400.0mesh
Thickness35.0 ~ 45.0µm
Thickness0.3mm

Description & Claims & Application Information

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