TWI607068B - Antibacterial liquid, optimized antibacterial layer and preparation method thereof - Google Patents

Description

Antibacterial liquid, optimized antibacterial layer and preparation method thereof

The invention relates to an antibacterial liquid component and a preparation method thereof, which are formed by coating the antibacterial liquid on a substrate or a printed layer thereof to form an antibacterial layer, thereby improving the antibacterial ability of the substrate to prevent the spread of bacteria.

According to the current era of social progress and prosperity, the quality of life is constantly improving, so that people pay more attention to the efficacy of antibacterial sterilization, and more attention is paid to the antibacterial ability of daily necessities. It is necessary to improve cultural paper, industrial paper (film), packaging paper (film). ) antibacterial effect.

Generally, paper, leather, and plastic are widely used as printed materials, and a large number of printed materials are circulated and transmitted through the different links. Therefore, bacteria often adhere to printed matter, such as Escherichia coli, Staphylococcus aureus, etc., causing infection and causing illness in people who come into contact with these prints. In order to clean the bacteria on the surface of the print to keep it clean, the surface of the print must be treated with antibacterial treatment.

At present, the surface of the printed matter is subjected to antibacterial treatment, and the method of spraying the antibacterial liquid on the printed matter substrate is mainly adopted. Since the surface of the printed matter is also printed with ink, the antibacterial effect of the antibacterial liquid is greatly weakened, so that the antibacterial effect is not good, and the antibacterial effect is also affected. The quality of the printing is disclosed in Chinese Patent Application No. 99113623.3 "Method for Producing Antibacterial Paper".

In view of the poor antibacterial method used in the above-mentioned conventional printed matter, the inventors have exhausted their efforts to develop an antibacterial liquid, an optimized antibacterial layer and a preparation method thereof, the main purpose of which is to provide An antibacterial liquid excellent in antibacterial effect; a secondary object of the present invention is to provide a preparation method which can be applied to a surface of a substrate in a large amount.

In order to achieve the above object, the technical means used in the antibacterial liquid, the optimized antibacterial layer and the preparation method thereof of the present invention are as follows: an antibacterial liquid comprising the following composition: polyvinyl alcohol having a weight percentage of about 3.5% to 6.5%, weight. The percentage is about 27%~37% carboxylated styrene butadiene latex, about 0.4%~0.6% by weight of sodium tripolyphosphate, about 2.5%~4.5% by weight of 1,2-propanediol, and the weight ratio is about 6%~11% carbonic acid. Zirconium ammonium, a composition of deionized water having a weight ratio of about 1% to 3% of nano oxide and a weight ratio of 42% to 55%; and sufficiently stirred by the above materials to constitute a 100% antibacterial liquid composition.

In the antibacterial liquid composition, the nano oxide may be any one of an oxide such as nano zinc oxide, nano zirconia, nano cerium oxide, or nano manganese oxide, or a mixture of two or more thereof.

The antibacterial liquid according to claim 1, wherein the viscosity of the antibacterial liquid is (Ford cup #4/25 ° C): 25 to 50 sec.

A method for preparing the antibacterial liquid comprises the following steps: a first stirring step, placing an inner pot in an outer pot having water, and placing the deionized water and sodium tripolyphosphate in the inner pot and stirring together After a second stirring step, after slowly adding the polyvinyl alcohol to the inner pot, the inner pot is heated and maintained to between 92 ° C and 94 ° C in a water-heating manner, and the heat source is turned off after being uniformly stirred. Cooling; a third stirring step, when the inner pot is lowered to between 45 ° C and 50 ° C, then adding the carboxylated styrene butadiene latex and stirring uniformly, then adding the 1,2-propanediol and stirring evenly; In the four stirring steps, when the inner pot is lowered to between 25 ° C and 30 ° C, the ammonium antimony carbonate and the nano oxide are added and stirred to complete the antibacterial liquid.

The preparation method of the antibacterial liquid described above, wherein a heat exchanger is added to the outer pot to accelerate the accelerated cooling of the hot water in the outer pot and improve the efficiency of the preparation.

The invention relates to a method for preparing an antibacterial layer, which is characterized in that: the antibacterial liquid component of any one of claim 1 to claim 4, comprising: a substrate step, wherein the substrate is placed on a machine; Using the antibacterial liquid and coating an antibacterial layer on the substrate; and a drying step of curing the antibacterial layer by injecting the substrate coated with the antibacterial liquid into a drying oven having a temperature of 80 ° C to 120 ° C .

The above method for preparing an optimized antibacterial layer, wherein the substrate is coated with a printing layer, and the antibacterial layer is coated on the printed layer of the substrate by using the antibacterial liquid.

An optimized antibacterial layer prepared by the foregoing method, wherein the substrate is a paper, leather or plastic film.

The substrate is made of copper paper, dalin paper, cardboard, kraft paper, specialty paper, PE film, PVC film, PP film or PE film.

The above-mentioned optimized antibacterial layer, wherein the thickness of the antibacterial layer is set to be between 0.003 mm and 0.3 mm.

The present invention can achieve the following effects by the above technical means:

1. The invention has the advantages of the gel-like viscous property of the antibacterial liquid and is easy to be coated by a large area of the machine, and is suitable for printing or glazing on various substrates or films on various substrates or films on various printing machines or coating machines or Coating the antibacterial liquid of the invention, using printing or glazing or coating one or both sides, so that the outer surface of the substrate produces an excellent antibacterial effect; and, because the invention is not directly added to the substrate, the antibacterial liquid can be saved. Usage amount.

2. The embodiment of the invention can be applied to the mass production of continuous use and has a wide range of applications, for example, it can be applied to various types of packaging materials such as food, medicine, cosmetics, cigarettes, etc., as well as graphic papers and cultural papers (film). , industrial paper (film), packaging paper (film).

(a), (b), (c), (d), (e), (f), (g) ‧ ‧ steps

A‧‧‧ glazing machine

A1‧‧‧ drying oven

1‧‧‧Antibacterial layer

11‧‧‧Lighting ink

2‧‧‧Printing layer

3‧‧‧Substrate

Figure 1: Schematic diagram of the antibacterial liquid of the present invention and a preparation method thereof.

Fig. 2 is a schematic view showing the preparation method of the optimized antibacterial layer of the present invention.

Figure 3: Schematic diagram of the present invention for implementing an optimized antimicrobial layer by a glazing machine.

Fig. 4 is a schematic view showing the embodiment of the printed layer in which the optimized antibacterial layer is coated on a substrate.

Figure 5: Schematic diagram of the present invention to optimize the application of the antibacterial layer directly onto the substrate.

First, referring to Fig. 1, the present invention relates to an antibacterial liquid comprising the following composition: polyvinyl alcohol (C2H4O) x in a weight percentage of about 3.5% to 6.5%, and about 27% to 37% by weight of a carboxyl group. SBR latex (XSBRL), sodium diphosphate sodium Na5P3O10 with a weight percentage of about 0.4% to 0.6%, 1,2-propanediol C3H8O2 with a weight percentage of about 2.5% to 4.5%, and a weight ratio of about 6% to 11% ammonium zirconium carbonate. NH4)2ZrO(CO3)2, a weight ratio of about 1% to 3% of nano oxide, and a weight ratio of 42% to 55% of deionized water; by stirring the above materials uniformly to form 100% The antibacterial liquid composition, and the viscosity of the antibacterial liquid (Viscosity) is set to (Ford cup #4/25 ° C): 25 to 50 sec., which can make the printing or glazing machine adhere to the large area for coating on the base. The surface of the material, in particular, the antibacterial liquid is not limited by the machine coating method, and can also be manually applied without the use of related equipment.

The antibacterial liquid composition is a milky white liquid and has a slightly gelatinous liquid and is non-toxic. It is suitable as a coating liquid applied on the outer surface of the substrate to form an antibacterial layer to enhance the antibacterial effect of the substrate. The antibacterial liquid forms a transparent. In particular, the nano oxide may be any one or more of oxides such as nano zinc oxide, nano zirconia, nano cerium oxide, and manganese manganese oxide.

On the other hand, the antibacterial liquid of the present invention is water-soluble and can be used as an ink for glazing on a substrate such as paper, leather or plastic film or a coating liquid for coating application only. The applicable substrates are copper paper, Daolin paper, cardboard, kraft paper, special paper, PET film, PVC film, PP film, PE film, etc., and the antibacterial liquid is printed or coated. The coating is applied to apply the antibacterial liquid on the surface of the substrate or the printed layer on average to achieve an excellent antibacterial sterilization effect for a long period of time.

Referring to FIG. 1 , the method for preparing the antibacterial liquid of the present invention comprises the following steps: a first stirring step (a), a second stirring step (b), a third stirring step (c) and a a fourth stirring step (c); wherein the first stirring step (a) is placed in an inner pot having a capacity of about 80 to 100 liters made of stainless steel, placed in an outer pot having 20 liters of water, and the deionized water is further The sodium tripolyphosphate is placed in the inner pot, and the stirrer is stirred together, and the stirring speed is about 70-80 rpm. First, all the sodium tripolyphosphate is dissolved in 250 ml of deionized water, and then added to the inner pot. Stirring for 1 minute; the second stirring step (b), after continuously adding all the polyvinyl alcohol to the inner pot, stirring for 10 minutes, and then heating the inner pot to a temperature of 92 ° C to 94 ° C by means of water heating. During the period of uniform stirring, the heat source is turned off for cooling; the third stirring step (c), during cooling, changes the water area to cold water, that is, the inner pot is rapidly lowered to 45 ° C to 50 ° C by using a heat exchanger. Between, then add all the carboxylated styrene butadiene latex and stir for 5 minutes before adding all 1,2-propane And stirring for 0.5 hours; and the fourth stirring step (d), when the inner pot is lowered to between 25 ° C and 30 ° C, then all the ammonium zirconium carbonate is added and stirred for 5 minutes before adding all the nano oxides. Thereafter, the mixture was stirred for 10 minutes to complete the antibacterial liquid of the present invention.

Referring to FIG. 2 to FIG. 4 , in addition to the method for preparing the optimized antibacterial layer of the present invention, the antibacterial liquid component can be used in the final ink of a general printing machine or the glazing ink 11 of a general glazing machine. The method for preparing the antibacterial liquid of the present invention is described in conjunction with the glazing machine (A) of FIG. 3, wherein the method for preparing the optimized antibacterial layer comprises: a substrate step (e), which may be coated on the substrate 3. Ink Printing layer 2, the substrate 3 is set as a paper, leather or plastic film; a coating step (f) is to apply the antibacterial liquid and apply an antibacterial layer on the substrate 3 or the printed layer 2 thereof 1, the thickness of the antibacterial layer 1 is set to be between 0.003 mm and 0.3 mm; and a drying step (g), the substrate coated with the antibacterial liquid is placed in a drying oven A1 having a temperature of 80 ° C to 120 ° C The antibacterial layer 1 is cured internally. In other words, the antimicrobial layer 1 can be cured on the printed layer 2 on the substrate 3 (as in Figure 4), or the antimicrobial layer 1 can be cured on the substrate 3 (Fig. 5). In particular, the antibacterial liquid of the present invention can be applied to the above-described optimized antibacterial layer on one or both sides of the substrate 3 or its printed layer 2.

Therefore, the antibacterial liquid of the present invention can be used in the field of printing technology; in other words, (1) the antibacterial liquid of the present invention is used as an ink for a printing machine; (2) the applicable printed matter is printed in a single color or more, and is printed in a multicolor printing. Thereafter, in the last set of printing wheel sets of the printing machine, the antibacterial liquid of the invention is used as the final printing ink, and the antibacterial liquid of the invention is printed on the printing layer of the substrate, and then dried by the drying device on the printing machine; (3) After the printing is completed, the printed matter is allowed to stand, and the surface is dried to form an antibacterial paper having excellent antibacterial effect. (4) The antibacterial liquid of the present invention may be directly applied to a single-sided or double-sided substrate having no printed layer.

The antibacterial liquid of the present invention can be used in the field of glazing; in other words, (1) the antibacterial liquid of the present invention is used as a glazing oil used in a glazing machine; (2) according to the characteristics of the glazing machine, the antibacterial agent of the present invention The liquid is evenly glazed on the substrate, and then dried by the drying device on the glazing machine; (3), when the substrate is allowed to stand after the glazing is completed, the surface is dried to form a layer with excellent antibacterial effect. Antibacterial paper.

The antibacterial liquid of the present invention can be used in the field of coating technology; in other words, (1) the antibacterial liquid of the present invention is used as a coating liquid for a coating machine; (2) the antibacterial liquid of the present invention is placed on a coating machine The coating tank adopts a micro gravure coating wheel to apply the antibacterial liquid on the surface of the substrate on average, and the micro intaglio wheel is 40 mesh to 160 mesh; (3) and then oven dried at 80 ° C to 120 ° C. The outer surface of the substrate is provided with an antibacterial paper excellent in antibacterial effect.

In particular, in the present invention, the surface antibacterial layer can be added to the antibacterial liquid of the present invention if it requires other colors.

In summary, the present invention relates to an "antibacterial liquid, an optimized antibacterial layer and a preparation method thereof", and the structure thereof has not been seen in various books or publicly used, and is in conformity with the patent application requirements, and is requested to be clarified by the bureau. To grant a patent, to express a prayer; to be clear, the above is the specific embodiment of the patent application and the technical principles applied. If the change is made according to the concept of this patent application, the function produced by it The role shall not be exceeded by the spirit of the specification and the drawings, and shall be combined with Chen Ming within the scope of this patent application.

(a), (b), (c), (d) ‧ ‧ steps

Claims (8)

An antibacterial liquid comprising the following composition: about 3.5% to 6.5% by weight of polyvinyl alcohol, about 27% to 37% by weight of carboxylated styrene butadiene latex, and about 0.4% to 0.6% by weight of sodium tripolyphosphate. The weight percentage is about 2.5%~4.5% of 1,2-propanediol, the weight ratio is about 6%~11% ammonium zirconium carbonate, the weight ratio is about 1%~3% nano oxide, and the weight ratio is 42%~55%. The composition of the ionized water; the above substance is sufficiently stirred to form a 100% antibacterial liquid composition, wherein the viscosity of the antibacterial liquid is set to (Ford cup #4/25 ° C): 25 to 50 sec., and the crucible is applied to the paper. The surface of the substrate of plastic, plastic film or leather. The antibacterial liquid according to claim 1, wherein the nano oxide may be any one of an oxide such as nano zinc oxide, nano zirconia, nano cerium oxide, or nano manganese oxide, or a mixture of two or more thereof. A method for preparing the antibacterial liquid according to claim 1, comprising the following steps: a first stirring step, placing the inner pot in an outer pot having water, and placing the deionized water and sodium tripolyphosphate into the inner pot. Stirring together in the inner pot; a second stirring step, after slowly adding the polyvinyl alcohol to the inner pot, the inner pot is heated and maintained to between 92 ° C and 94 ° C in a water-proof heating manner, and uniformly stirred. After the heat source is turned off for cooling; a third stirring step, when the inner pot is lowered to between 45 ° C and 50 ° C, the carboxyl styrene-butadiene latex is further added and stirred uniformly, and then the 1,2-propanediol is added. Stirring uniformly; and a fourth stirring step, when the inner pot is lowered to between 25 ° C and 30 ° C, the ammonium zirconium carbonate and the nano oxide are added and stirred to complete the antibacterial liquid. The method for preparing an antibacterial liquid according to claim 3, wherein a heat exchanger is added to the outer pot to accelerate the accelerated cooling of the hot water in the outer pot and improve the efficiency of the preparation. The invention relates to a method for preparing an antibacterial layer, which comprises the composition of any one of claim 1 to claim 2, comprising: a substrate step, wherein the substrate can be disposed on a machine, wherein the substrate Set as paper, plastic film or leather; a coating step, using the antibacterial liquid and coating on the substrate An antibacterial layer; and a drying step of curing the antibacterial layer by moving the substrate coated with the antibacterial liquid into and out of a drying oven having a temperature of 80 ° C to 120 ° C. The method for preparing an optimized antibacterial layer according to claim 5, wherein the substrate is coated with a printing layer, and the antibacterial layer is coated on the printed layer of the substrate by using the antibacterial liquid. The method for preparing an optimized antibacterial layer according to claim 5, wherein the substrate is made of copper paper, Daolin paper, cardboard, kraft paper, PET film, PVC film, PP film or PE film. A method for preparing an optimized antibacterial layer according to claim 5, wherein the thickness of the antibacterial layer is set to be between 0.003 mm and 0.3 mm.