KR100257300B1 - Steering wheel cover with antibiosis - Google Patents

Abstract

PURPOSE: A vehicle handle has a prominent antibacterial function by adding an antibacterial agent when it is manufactured. CONSTITUTION: Inorganic agents(ceramic, zirconium phosphate and natural or composite zeolite field) are added as them, condensed master batch type or compound type to an ordinary combination(having no inorganic agent) for making a vehicle handle. The added agents are uniformly dispersed and extruded as pellet state. Further, this is molded again through injection molding. Thus, a vehicle handle having antibacterial function is manufactured. Therefore, a driver is protected from contagions of diseases.

Description

Manufacture steering wheel for vehicle with antibacterial function

The present invention relates to a method of manufacturing a car handle having an antibacterial function by adding an antimicrobial agent to a plastic material in a car handle manufacturing process. Here, plastic is one of those that can be extruded or injected mainly of PVC, PU, PE, PP, ABS, PS, SAN, PET, and the like. The most frequently contacted body part of the car's interior parts is the handle part. When self-driving, sweat from the hands or foreign substances contaminated with the hand can be easily adhered to the handle, and sweat and contaminants remain even when driving by others. easy to do. In addition, the interior of the car can maintain the temperature and humidity where germs and molds can grow, so germs and molds easily grow exponentially when there is nutrients, and are present on the surface of the steering wheel. The disease can be caused to cause infectious diseases and cause unpleasant odors in the car interior.

In the present invention, by adding the antimicrobial agent during the molding process of the plastics listed above to give the antimicrobial function, antimicrobial agents that can be used generally include organic and inorganic antibacterial agents. However, organic antimicrobials have most of the toxicity, so the stability of the human body is very low, the durability of the antimicrobial function by the elution and volatilization when using the product is short, and the effects of volatilization during processing in most plastic processing temperature range can not be expected. On the other hand, the inorganic antimicrobial agent has excellent human stability, no volatilization and no dissolution during use, and thus is antipermanent. It is stable even in the high temperature range, that is, 800 to 1000 ° C, and thus is very stable in the plastic processing temperature range of 150 to 300 ° C. In addition, the organic system may affect the existing physical properties when reactive with other additives, but the inorganic antimicrobial agent does not affect the existing physical properties and has a merit of sufficiently exhibiting antibacterial function even with a small amount of addition. Inorganic antibacterial agents that can be used in the present invention can be classified as follows according to the type of carrier. Commonly used carriers include ceramics, zirconium phosphate, apatite, zeolites, and the like. The antimicrobial metals such as silver, copper, and zinc are used to exchange or adsorb ions in the carrier. When applying the antimicrobial agent to the resin, it is necessary to consider the optimum dispersion.The antimicrobial agent should be added directly in the form of powder in the proper additive ratio during the process, or the master batch made with the concentrated antimicrobial compound to make the dispersion advantageous, or the antimicrobial compound is made into the final product It may be added in an amount suitable for the weight of the product. In more detail, the resin and other additives, such as plasticizers, hardness modifiers, tensile strength modifiers, coloring pigments, and various stabilizers, etc., are mixed to manufacture conventional PVC handles. The process is easy to mix in any process and can be used to aid in even dispersion using a masterbatch or compound of any combination of resins and additives, depending on the convenience of the process operation. In order to manufacture a polyurethane handle, a resin and an additive, such as a crosslinking agent, a catalyst, a foaming agent, a color control toner, and an antioxidant, are mixed. similar.

Example 1

Antimicrobial agent was added to the conventional formulation (addition of antimicrobial agent) at 50-250 ° C to manufacture a conventional automobile handle, in which plasticizer, calcium carbonate, pigment, stabilizer, etc. were mixed with FB resin, and 0.05 to 10 Inorganic antimicrobial agent was added in powder form at a weight percent ratio, uniformly dispersed and extruded into pellets, which were then injected at a temperature of 150 to 250 ° C. to make a handle having antibacterial function.

Example 2

In Example 1, a handle having an antimicrobial function was prepared by adding a masterbatch concentrated with an antimicrobial agent so that the ratio of the inorganic antimicrobial agent to the solid content was 0.05 to 10% by weight.

Example 3

In Example 1, a handle having an antimicrobial function was made by adding an antimicrobial compound so that the addition ratio of the inorganic antimicrobial agent to the solid content was 0.05 to 10% by weight.

Example 4

Foaming temperature is 40 ~ 100 ℃, foaming pressure by adding inorganic antimicrobial agent in powder form to 0.05 ~ 10% by weight to the ordinary formulation containing polyurethane resin, crosslinking agent, catalyst, foaming agent, color control toner, antioxidant, etc. A handle having an antibacterial function was prepared by foaming at ² to 10 kg / cm ² .

Example 5

In Example 4, a handle having an antimicrobial function was prepared by adding a masterbatch in which the antimicrobial agent was concentrated so that the ratio of the inorganic antimicrobial agent to the solid content was 0.05 to 10% by weight.

Example 6

In Example 4, a handle having an antimicrobial function was prepared by adding an antibacterial compound so that the addition ratio of the inorganic antimicrobial agent to the solid content was 0.05 to 10% by weight.

The results of the antibacterial activity test against the bacteria and molds for the examples are as follows. The test method for the bacteria was press-contact method, and the test conditions were measured for 24 hours of incubation at 25 ° C for the test bacteria solution. The sample surface area is 60 cm ² . The strain used was for Aspergillusniger (ATCC 9642). The test conditions were 28 ° C., 85% RH, and 4 weeks.

Display Classification 3: 30-60% or less on the specimen

1: grow up to 10% above the specimen

0: can't grow

Claims (2)

0.05 to 10% by weight of the conventional formulation (no antimicrobial agent) blended at 50-250 ° C. to manufacture a conventional automobile steering wheel in which additives such as plasticizer, calcium carbonate, pigment, and stabilizer were added to the fibC resin. In the ratio of percentage, inorganic antimicrobial agents (ceramic, zirconium phosphate, apatite, natural and synthetic zeolites) or in the form of concentrated masterbatches or compounds are added, evenly dispersed and extruded into pellets, which are then brought to a temperature of 150-250 ° C. Method of manufacturing a steering wheel for automobiles having an antibacterial function by injection. Inorganic antimicrobial agent itself or concentrated in a ratio of 0.05 to 10% by weight relative to the handle solid content in a normal formulation (no antimicrobial agent) formulated using a polyurethane as a resin and a crosslinking agent, a catalyst, a foaming agent, a color adjusting toner, and an antioxidant as an additive. Method of producing a steering wheel for an automobile having an antibacterial function by dispersing evenly by adding a master batch or a compound and then foaming at a foaming temperature of 40-100 ° C. and a foaming pressure of 2-10 kg / cm ² .