KR100564088B1 - Natural biodegradable composition and Sheet using natural biodegradable composition - Google Patents

Abstract

The present invention relates to a natural biodegradable composition and sheet paper using the same, and more specifically, (a) 50 to 70 parts by weight of the lower flour; (b) 20 to 40 parts by weight of fibrous material selected from wood pulp, nonwood pulp or a mixture of wood and nonwood pulp; And (c) 5 to 10 parts by weight of a stabilizer selected from the group consisting of sorbitol, glycerin, propylene glycol, calcium carbonate, titanium dioxide and rosin, and a sheet of the biodegradable composition prepared from the composition. It is about. The present invention also relates to a system for producing the sheet paper.

The natural biodegradable composition and the sheet of the present invention are environmentally friendly after being decomposed naturally after a certain period of use, and are economically available because they are easily obtained because they are obtained from natural by-products and inexpensive materials, and have uniform thickness and excellent strength. It is lightweight and has a beautiful appearance and has the advantage of being able to be continuously produced in large quantities.

Natural Biodegradable Compositions, Sheets, Flour, Cotton, Stabilizers, Disposable Products

Description

Natural biodegradable composition and sheet using the same {Natural biodegradable composition and Sheet using natural biodegradable composition}

1 is a schematic conceptual view showing a composition for producing a natural biodegradable composition according to the present invention,

2 and 3 is a schematic conceptual diagram showing a series of equipment for producing sheet paper using a natural biodegradable composition according to the present invention,

Figure 4 is a schematic conceptual diagram showing a facility for pre-treatment for molding sheet paper produced using a natural biodegradable composition according to the present invention into various products,

Figure 5 is a schematic conceptual diagram showing a device for producing a product such as chopsticks, cutlery, fork made by thickening the sheet paper,

6 is a schematic conceptual view showing an apparatus for producing a container such as a plate by a forming press through a preheater while repeating roll paper; and

Fig. 7 is a schematic conceptual view showing an apparatus for forming a cup by applying heat to sheet paper cut by printing and specification.

The present invention relates to a natural biodegradable composition and a sheet paper using the same, and more particularly, it is naturally decomposed after a certain period of time after use, and is environmentally friendly. The present invention relates to a natural biodegradable composition having a uniform thickness and excellent strength, having a light weight and a beautiful appearance, and having an advantage of being able to be continuously produced in large quantities, and a sheet paper manufactured using the same.

Polypropylene or polyethylene molded products, foamed resin products, pulp mold products, etc., which currently make up various disposable products, have a lot of problems such as high raw material costs and after-use or recycling waste treatment.

In this regard, the present applicant studies a method that can be manufactured more economically by reducing the manufacturing cost and at the same time easy to mold using properties of natural materials such as paper, polypropylene or polyethylene to solve the above problems. It was.

The present invention is invented to solve the problems as described above, the object of the present invention is environmentally friendly after being decomposed after a certain period of use is environmentally friendly, since it is obtained from natural by-products and easy to obtain and inexpensive materials Natural biodegradable composition which is economical, has a uniform thickness and excellent strength, has a light weight and a beautiful appearance, and can be continuously produced in large quantities, sheet paper produced using the same, molded article manufactured by molding the sheet paper And a system capable of producing the sheet paper.

The present invention to achieve the above object

(a) 50 to 70 parts by weight of lower flour;

(b) 20 to 40 parts by weight of fibrous material selected from wood pulp, nonwood pulp or a mixture of wood and nonwood pulp; And

(c) 5 to 10 parts by weight of a stabilizer selected from the group consisting of sorbitol, glycerin, propylene glycol, calcium carbonate, titanium dioxide and rosin

It provides a natural biodegradable composition comprising a.

The present invention also provides a natural biodegradable sheet made of the biodegradable composition.

The present invention also provides a molded article produced by molding the natural biodegradable sheet paper.

In another aspect, the present invention provides a system for producing a natural biodegradable sheet and molded article to produce a natural biodegradable sheet and a molded article with the biodegradable composition as shown in FIG.

Hereinafter, the present invention will be described in detail.

Natural biodegradable composition of the present invention is characterized in that it comprises a lower flour, a fibrous material, and a stabilizer, preferably 50 to 70 parts by weight of the lower flour; It is preferable to include 20 to 40 parts by weight of the fibrous material, and 5 to 10 parts by weight of the stabilizer.

In the present invention, the flour acts as a binder, it may be applied to a conventional flour, it is preferable to use a low-grade flour with a low raw material unit price according to the economics.

In addition, the fibrous material of the present invention may be selected from wood pulp, non-wood pulp or a mixture of wood pulp and non-wood pulp, preferably, it is preferred to use the shaling cotton wool generated as a by-product during garment manufacturing. .

In addition, the stabilizer of the present invention is preferably used a stabilizer selected from the group consisting of sorbitol, glycerin, propylene glycol, calcium carbonate, titanium dioxide, rosin and a mixture of two or more thereof.

In addition, the present invention may be made by mixing 0.1 to 1 parts by weight of an edible additive or an antimicrobial agent for producing color in addition to the natural biodegradable composition.

The natural biodegradable composition may further include water when prepared into a sheet, in which case it may be processed to include 50 to 60 parts by weight of the composition raw material and 40 to 50 parts by weight of water.

The natural biodegradable composition of the present invention is environmentally friendly by decomposing naturally in a soil after a certain period of time, in particular, the decomposition rate is very fast compared to the conventional biodegradable composition, because it is obtained from natural by-products and easy to obtain and inexpensive materials Because it is economical.

In addition, the present invention provides a sheet made of the natural biodegradable composition, preferably the natural biodegradable sheet of the present invention can be prepared through the following method. That is, a dispersion tank containing a low-molecular flour supplied from a silo, a fibrous material which is dissociated by a high concentration of pulper and is beaten by a craffin refiner and dehydrated by a belt press, and supplied with a natural biodegradable composition including a stabilizer. Mixing and kneading within; Making the mixed composition into a plurality of sheets by a plurality of injection molds and then laminating the plurality of sheets by a press to form a sheet of sheet paper; The sheet may be prepared by drying and cooling the sheet by a dryer and a cooler.

Hereinafter, with reference to the accompanying drawings will be described in detail a sheet using a natural biodegradable composition according to the present invention and a manufacturing method of the sheet.

Figure 1 schematically shows a composition for producing a natural biodegradable composition according to the present invention.

As shown in FIG. 1, the natural biodegradable composition is dissociated by the low-flour flour supplied from the silo 1 and by the high concentration pulp 2 and betrayed by the craffin refiner 4, and then the belt press 6. Fiber material, such as cotton, dehydrated and supplied, and a stabilizer.

Preferably the natural biodegradable composition, 50 to 70 parts by weight of the low-flour, 20 to 40 parts by weight of the fibrous material, and 5 to 10 parts by weight of a stabilizer.

The fibrous material may be any one selected from wood pulp or non-wood pulp, or a mixture of wood pulp and non-wood pulp. Particularly, as the fibrous material, it is preferable to use a shearing cotton wool generated as a by-product during the manufacture of oil.

For example, in the case of using the cotton as a fibrous material, the cotton is first dissociated into water by the high concentration pulper 2 as described above, stored in the storage tank 3, and then again by the craffin refiner 4. It is preferable to be beaten according to predetermined sheet characteristics, stored in the reservoir 5, and dewatered by 50% water and 50% cotton by the belt press 6 and supplied.

As the stabilizer, one substance selected from sorbitol, glycerin, propylene glycol, calcium carbonate, titanium dioxide, rosin or the like or a mixture of two or more selected from these is used.

In addition, the natural biodegradable composition may be made by mixing 0.1 to 1 parts by weight of an edible additive or an antimicrobial agent for producing chromaticity.

The natural biodegradable composition may be made by mixing 50 to 60 parts by weight of the composition raw material and 40 to 50 parts by weight of moisture in the dispersion tank 7 made of the materials as described above.

The mixing operation can be done as follows. First, the impeller of the dispersion tank 7 is dispersed by rotating at a high speed of about 900 rpm for 10 to 20 minutes, and then the impeller is mixed by rotating at an intermediate speed of about 400 rpm. At this time, the feedstock is automatically remote controlled by the electronic balance attached to the dispersion tank 7.

The mixed kneaded natural material is quantitatively transferred to the next step through the pipe by the mono pump (8).

2 and 3 schematically show a series of equipment for producing sheet paper using the natural biodegradable composition according to the present invention.

As shown in Fig. 2, the mixed kneaded composition as described above is supplied to three injection molds 9 and primary molded into three 0.1 mm to 10 mm sheets. The three primary molded sheets are formed into a single sheet of paper by being transferred to the press 10 by the automatic transfer conveyor and laminated.

The press 10 can change the roll interval by adjusting the number of gears can be arbitrarily adjusted the thickness of the sheet, it is configured to automatically adjust the speed. In addition, the press 10 is preferably in parallel with the horizontal arrangement in order to reduce the installation area.

If necessary, the surface of the sheet can be engraved with the intaglio, embossed by the embossing roll of the marking press 11, thereby enabling a variety of manufacturing of the molded article.

Subsequently, the sheet paper made by laminating three sheets is supplied to the first hot air dryer 12 to be dried. The first hot air dryer 12 is divided into three zones, and the sheet paper which has been supplied with the paper is dried at 60 ° C. to 80 ° C. in the first zone and at 90 ° C. to 100 ° C. in the second zone. The third zone of the first hot air dryer 12 has a thick sheet of paper so that it can be used when undried sheet paper is generated, and thus the sheet sheet thickness that can be produced can be more varied.

In the first to third zones of the first hot air dryer 12, an instrumentation device may be installed to automatically adjust the internal temperature, the air volume, and the air pressure to be remotely distributed by a monitor, and the hot air temperature and air volume may be adjusted according to the drying furnace. It can be adjusted automatically.

As shown in FIG. 3, the first indirect dryer 13 may uniformize the lateral water distribution of the sheet paper and at the same time, uniform the water distribution on the front and back surfaces of the sheet paper.

In addition, the first cooler 14 quenches the surface and the back surface of the sheet paper in order to prevent the sheet paper from being shrunk naturally.

The coating press 15 coats the sheet of paper with a coating liquid of about 15 μm to 100 μm in order to improve molding and appearance of the sheet, wherein the coating liquid uses 1 to 20 parts by weight of soft water or a water-soluble acrylic resin, or soft water. And a mixture of water-soluble acrylic resin can be used. The coating liquid supply device (not shown) can be distributed remotely controlled so that the coating liquid is quantitatively supplied.

The coated sheet paper is dried at 60 ° C. to 80 ° C. in the fourth zone of the second hot air dryer 16 and 80 ° C. to 200 ° C. in the fifth zone.

The second indirect dryer 17 makes the lateral water distribution of the sheet paper uniform, and at the same time the water distribution on the front and back surfaces of the sheet paper.

The second cooler 18 quenches the front and back of the sheet of paper to prevent the sheet from zipping while naturally cooling.

The sheet paper which has undergone the drying process as described above is preferably such that the moisture content is maintained at 6 to 13 relative to the total weight.

In addition, the present invention provides a molded article manufactured by molding the natural biodegradable sheet paper, which will be described below with reference to the accompanying drawings.

4 shows a facility for pre-treatment for molding sheet paper made using a natural biodegradable composition according to the present invention into various products.

As shown in Fig. 4, the calender 19 presses the sheet surface at a linear pressure of 100 kN / cm to 200 kN / cm in order to improve the smoothness and gloss of the sheet surface.

The reel 20 automatically winds up the sheet paper produced through the process as described above to make it into a paper. The paper produced in this way is sent to various molding machines and used to make cups, plates, chopsticks, spoons or forks.

On the other hand, the sheet paper calendered by the calender 19 can be automatically stacked while being cut to meet the specifications of the desired molded article while being sent to the flexographic printing and cutting machine 21 directly before being made into a sheet of paper. The sheet paper thus printed and cut is sent to the bowl molding machine and the cup molding machine shown in FIGS. 6 and 7 to be formed into products such as plates and cups.

The rewinder 22 shown in FIG. 4 performs a rewinding and cutting operation so as to have a predetermined roll diameter and sheet width while releasing the paper. The citro paper cut into a predetermined width while passing through the rewinder 22 is sent to the lamination winder 23 shown in FIG. 5. The sheet is sent to a molding machine that manufactures products such as chopsticks, spoons or forks after making several layers of lamination process to make thickness and width of a predetermined standard.

When the sheet is rewinded by the rewinder 22, the tension of the sheet is automatically detected by a load cell attached to the roll, and according to the detected value, the rewinder roll driving motor automatically adjusts the rotation speed to control the paper. It makes it possible to wind tightly and uniformly, thereby facilitating continuous operation in the molding machine. In addition, it is desirable for the metrology paper to automatically detect and cut the desired length.

In the present embodiment, the rewinder 22 was able to achieve three times the production speed of the sheet production facility in consideration of the production amount of the sheet production facility, but the present invention is not limited thereto.

The first and second lamination winders 23, 24 as shown in Fig. 5 superimpose and laminate two sheets of paper using, for example, tapioca starch, which is a natural adhesive.

In the first lamination winder 23, the first two sheets of paper are laminated and automatically wound up by a turret winder, and the wound sethrot is sent to the rewinder 22 of FIG. Put it. In the second lamination winder 24 of FIG. 5, the sheet paper, which is already overlapped in two layers and laminated in the first lamination winder 23, is laminated again in three layers and sent to the roll forming machine 25.

In the roll forming machine 25, a product such as chopsticks, a spoon or a fork is formed using sheet paper laminated in several layers. It is preferable to automatically adjust the tension of the sheet paper by attaching a load cell under the roll so as to operate the roll forming machine 25 smoothly and connecting the roll forming machine driving motor. In addition, when working in the roll forming machine 25 it is preferable to perform a molding operation while maintaining a temperature range of 20 ℃ to 94 ℃ and a pressure range of 200 kg / ㎠ to 400 kg / ㎠ using an electric heater.

Various moldings as described above complete the product by automatically detecting and cutting the length so that it can be produced continuously. The finished product is transported by an automatic conveyor and the product quantity is accurately measured and automatically packed.

Prior to feeding the sheet paper to the bowl molding machine 28 as shown in FIG. 6, for ease of molding, the scrotated paper dried and wound at 85% to 95% was first subjected to 60 to 60 ° C. by the far-infrared dryer 26. Preheat to 200 ° C.

When the paper is fed to the bowl forming machine 28, it is configured to be transported while automatically adjusting the tension by controlling the drive motor of the pressure roll 27 in accordance with the signal of the load cell mounted on the roll.

Molded product mold of bowl molding machine 28 is equipped with an electric heater for easy molding and heated to 20 ℃ to 94 ℃, it can adopt a high-speed hydraulic press to increase productivity and molding by putting nitrogen gas into the hydraulic line It is desirable to speed up. In addition, when working in the bowl molding machine 28, it is preferable to perform the molding operation while maintaining a pressure range of 200 kg / ㎠ to 400 kg / ㎠.

The cup forming machine 29 as shown in FIG. 7 forms and manufactures various cups by using sheet paper cut at the flexographic printing and cutting machine 21 shown in FIG. 4 and the troll paper wound at the rewinder 22. It is a facility to do it.

The process of forming and manufacturing a cup is as follows. That is, first, the sheet paper cut into the desired shape by the flexographic printing and cutting machine 21 is rolled up to perform ultrasonic high temperature bonding, and then the ultrasonic plate is automatically cut while the bottom plate of the cup is automatically cut by the sheet of paper roll wound on the rewinder 22. It is bonded to form a cup.

Due to the nature of the sheet paper, preheated to 60 ℃ to 200 ℃ and after applying the moisture to the adhesive portion rolled the bottom of the cup to attach the base so that the airtightness of the liquid contained in the cup can be maintained. The cup forming machine 29 is designed to be operated at high speed in order to increase productivity, and is designed to produce 30 to 500 cups per minute according to the type of cup, and can be automatically operated by two people for 20 cars. It is made.

In addition, when performing the operation in the cup molding machine 29 it is preferable to perform the molding operation while maintaining a temperature range of 20 ℃ to 94 ℃ and a pressure range of 200 kg / ㎠ to 400 kg / ㎠.

As described above, according to the present invention, there is provided a natural biodegradable composition comprising a low-flour flour, a fibrous material, and a stabilizer and a sheet made from the same, to produce a high-quality product using a low-grade raw material using a natural material. At the same time, it becomes possible to manufacture environmentally friendly disposable products that decay and decompose when in contact with soil.

In addition, according to the present invention, since the manufacturing process is simple and low-grade raw materials are used, the economy is excellent and the continuous molding is possible, thereby improving productivity.

Furthermore, according to the present invention, it is possible to continuously produce a large amount of high quality products having a uniform thickness and excellent strength, and having a light weight and a beautiful appearance.

Claims (10)

(a) 50 to 70 parts by weight of lower flour; (b) 20 to 40 parts by weight of fibrous material selected from wood pulp, nonwood pulp or a mixture of wood and nonwood pulp; And (c) 5 to 10 parts by weight of a stabilizer selected from the group consisting of sorbitol, glycerin, propylene glycol, calcium carbonate, titanium dioxide and rosin Natural biodegradable composition comprising a. The method of claim 1, The fibrous material is a natural biodegradable composition, characterized in that the shaling cotton wool generated as a by-product during garment manufacturing. delete The method of claim 1, The composition is a natural biodegradable composition, characterized in that it further comprises 0.1 to 1 parts by weight of an food additive and an antimicrobial agent for producing chromaticity. The method of claim 1, 50 to 70 parts by weight of the lower wheat flour (a); (b) 20 to 40 parts by weight of fibrous material selected from wood pulp, nonwood pulp or a mixture of wood and nonwood pulp; And (c) 50 to 60 parts by weight of a mixture comprising 5 to 10 parts by weight of a stabilizer selected from the group consisting of sorbitol, glycerin, propylene glycol, calcium carbonate, titanium dioxide and rosin, and 40 to 50 parts by weight of water. Natural Biodegradable Compositions. A natural biodegradable sheet of paper made from the natural biodegradable composition of claim 1, 2, 4 or 5. delete delete delete delete

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