KR100998226B1 - Orange Peel?Containing Corrugated Paper - Google Patents

Abstract

The present invention comprises the steps of (a) dissociating waste paper to obtain a waste paper slurry; (b) obtaining a citrus gourd; (c) blending the citrus fruit foil and waste paper slurry, wherein the blending ratio is 5-30% by weight of citrus fruit foil and the waste paper slurry is 70-95% by weight; (d) a method for producing a citrus foil-containing corrugated paper base, comprising the step of stirring, dehydrating and drying the mixture of (c) to produce a corrugated paper base, and a corrugated paper base containing the citrus foil fiber. . According to the present invention, excellent tear strength, compressive strength, tensile strength and water resistance effect can be produced a base paper excellent for use as a base paper for manufacturing agricultural and marine products cardboard boxes. In addition, as a raw material of the present invention is processed as a waste after citrus processing in the citrus processing plant in Jeju Island, as well as reducing the cost of the corrugated paper base, by lowering the cost of the box of citrus and agricultural products in Jeju Island, it is a great help to the citrus production farm By recycling the citrus foil waste of the citrus processing plant in Jeju Island, it is possible to reduce the environmental pollution and waste treatment costs.

Corrugated cardboard, waste paper, citrus gourd

Description

Orange Peel-Containing Corrugated Paper

The present invention relates to a method for producing a base paper for citrus foil-containing corrugated cardboard and a base paper for corrugated cardboard comprising citrus foil fibers.

In general, cardboard boxes used for storing or transporting items are used cardboard boxes which have impact resistance and cushioning effect. The corrugated cardboard is constructed by adhering a liner on the upper and lower surfaces of the corrugated bone wick as a buffer material for the corrugated bone wick formed by continuously forming a bend in a wave.

On the other hand, citrus gourds are by-products of citrus processing and are almost treated as waste on Jeju Island and are one of the factors that cause environmental pollution.

As a result of earnestly research efforts to develop a recycling method of citrus peels (citrus peels) treated as waste in Jeju Island, the present inventors have excellent physical properties required for corrugated cardboard when blending citrus peels with waste paper to produce a base paper for corrugated cardboard. By confirming that the base paper can be produced, the present invention has been completed.

Accordingly, it is an object of the present invention to provide a method for producing a citrus sheet-containing corrugated paper.

Another object of the present invention is to provide a base paper for corrugated paper comprising waste paper fibers and citrus foil fibers.

Other objects and advantages of the present invention will become more apparent from the following detailed description of the invention, claims and drawings.

According to one aspect of the invention, the present invention comprises the steps of (a) dissociating waste paper to obtain a waste paper slurry; (b) obtaining a citrus gourd; (c) blending the citrus fruit foil and waste paper slurry, wherein the blending ratio is 5-30% by weight of citrus fruit foil and the waste paper slurry is 70-95% by weight; (d) by stirring, dehydrating and drying the mixture of (c) provides a method for producing a citrus sheet-containing corrugated cardboard base paper comprising the step of producing a corrugated cardboard.

The present inventors earnestly researched to develop a recycling method of citrus peel (citrus peel) treated as waste in Jeju Island. As a result, it was confirmed that the base paper having excellent physical properties required in the corrugated cardboard can be produced in the case of producing corrugated cardboard by mixing citrus foil with waste paper.

The method of the present invention will be described in detail for each step as follows:

(a) Preparation of Waste Paper Slurry

One of the characteristics of this invention is that waste paper is used as a stock. Waste paper is typically treated as waste or recycled to produce low-quality paper. In the present invention, waste paper is used as a stock of corrugated paper. Dissociating waste paper to produce a slurry may be carried out according to a method conventionally used in the art. For example, a waste paper slurry can be prepared using a pulper. In addition, the waste paper stock may be subjected to a bleaching, bleaching or deinking process (eg, using hydrogen peroxide).

(b) obtaining citrus gourd

The biggest feature of the present invention is to use citrus fruit as an incidental material in producing corrugated paper.

Citrus gourd used in the present invention can be obtained through various methods. For example, a citrus gourd can be cut and used. In addition, citrus fruit powder produced by drying and powdering citrus fruit can be used in the present invention. In addition, the citrus foil fiber prepared by putting sodium hydroxide solution into the dried citrus foil and cooking at a high temperature to cellulose oil is used as citrus foil in the present invention.

(c) Mixing citrus gourd and waste paper slurry

The citrus gourd and waste paper slurry obtained above are blended in a suitable ratio. According to the present invention, the blending ratio is 5-30% by weight of citrus gourd and 70-95% by weight of waste paper slurry. If the ratio of citrus foil is less than 5% by weight, the effect (e.g., color and touch) of the citrus foil on the final corrugated cardboard becomes too weak, and when it exceeds 30% by weight, the physical properties of the final corrugated cardboard (E.g., basis weight, compressive strength, uncompressed strength, bursting strength and non-breaking strength) are greatly reduced.

According to a preferred embodiment of the present invention, the blending ratio of citrus fruit foil and waste paper slurry is 20-30% by weight citrus fruit foil and 70-80% by weight waste paper slurry.

(d) of citrus gourd and waste paper slurry Combination of Stirring , dewatering and drying

Subsequently, the base paper for corrugated cardboard is finally manufactured by stirring, dehydrating, and drying the blend of citrus foil and waste paper slurry.

According to a preferred embodiment of the present invention, in step (c) or (d), a dehydration accelerator is additionally used to suppress layer separation by citrus gourds. Dehydration accelerators include anything commonly used in the art for papermaking. Most preferably, polyamide polyepoxy dehydration accelerator is used.

According to a preferred embodiment of the present invention, isothiazoline preservatives are additionally used to prevent odors caused by citrus gourds in the step (b), (c) or (d).

According to a preferred embodiment of the present invention, in the step (c) or (d) the intelligence enhancer is additionally used. Intellectual enhancers include anything commonly used for papermaking in the art. Most preferably, a formalin-based epoxidized polyamine resin strength enhancer is used.

According to another aspect of the present invention, the present invention provides a base paper for corrugated paper comprising 70-95% by weight of waste paper fibers and 5-30% by weight of citrus foil fibers.

According to a preferred embodiment of the present invention, the base paper for corrugated cardboard of the present invention is a base paper for corrugated cardboard comprising 70-80% by weight of waste paper fibers and 20-30% by weight of citrus foil fibers.

According to a preferred embodiment of the present invention, the base paper for cardboard of the present invention is produced by the method of the present invention described above.

The term "corrugated paper" in the present specification has the meaning encompassing the corrugated paper [S paper (base weight 120g or less), reinforced corrugated paper (base weight 160g) or more, liner paper, surface paper and backing paper, most preferably corrugated paper Means.

Paper of the present invention mixed with waste paper and citrus foil is excellent paper for use as a base for producing agricultural and marine products cardboard box with excellent burst strength, compressive strength, tensile strength and water resistance effect. In addition, as a raw material of the present invention is processed as a waste after citrus processing in the citrus processing plant in Jeju Island, as well as reducing the cost of the corrugated paper base, by lowering the cost of the box of citrus and agricultural products in Jeju Island, it is a great help to the citrus production farm By recycling the citrus foil waste of the citrus processing plant in Jeju Island, it is possible to reduce the environmental pollution and waste treatment costs.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are only for describing the present invention in more detail and that the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention .

Example

Example  One: Citrus gourd  Selection of suitable conditions in the production of inclusion paper

In preparing corrugated cardboard using citrus fruits, a paper physical property experiment was conducted to select a suitable blending ratio of citrus fruits.

A papermaking was made using citrus foil (citrus sludge), a by-product generated after citrus processing in a citrus processing plant in Jeju Island, and the basis weight, compressive strength, uncompressed strength, bursting strength and non-bursting strength were measured. The experimental results are summarized in Table 1 below and FIGS. 1A-1C.

Item Raw material blending ratio
(weight%) Used additive Usage (% by weight) Sheet strength Paper tangerine Basis weight ¹⁾ Steel plate ²⁾ Specific pressure ³⁾ Wave ⁴⁾ Loquat ^{5 )} One  100 0 - - 118.1 13.8 11.69 2.1 1.78 2   90 10 (DE ^{6 )} ] + (SR ^{7 )} ]   [0.3] + [0.4] 117.0 12.9 9.66 2.1 1.79 3   90 10 [BEST7 ^{8 )} ] + [DE] + [SR]  [1.0] + [0.3] + [0.4] 113.8 13.8 11.42 2.2 1.93 4   80 20 [DE] + [SR]  [0.3] + [0.4] 110.4 12.8 11.59 2.0 1.81 5   80 20 [BEST7] + [DE] + [SR] [1.0] + [0.3] + [0.4] 110.6 13.4 12.12 2.1 1.90 6   70 30 [DE] + [SR]  [0.3] + [0.4] 106.2 11.7 11.02 1.8 1.69 7   70 30 [BEST7] + [DE] + [SR] [1.0] + [0.3] + [0.4] 104.6 11.8 11.28 1.8 1.72 8   60 40 [DE] + [SR]  [0.3] + [0.4] 100.0 9.3 9.3 1.6 1.60 9   60 40 [BEST7] + [DE] + [SR] [1.0] + [0.3] + [0.4] 101.6 9.6 9.45 1.7 1.67

¹⁾ basis weight (g / m ² ), ²⁾ compressive strength (N), ³⁾ uncompressed strength (Nm ² / g), ⁴⁾ bursting strength (kPa), ^{5) specific} bursting strength (kPa · m ² / g ), ⁶⁾ surfactants, ⁷⁾ polyamide polyepoxy emulsions (dehydration accelerators), ⁸⁾ non-formalin epoxidized polyamine resins (intelligence enhancers).

As can be seen from the experimental results, considering the paper strength and basis weight, it can be seen that the ratio of the proper blending of citrus fruits in the paper is 30% by weight or less. In the case of blending more than 30% by weight citrus fruit, the compressive strength, the uncompressed strength, the bursting strength and the non-bursting strength can be drastically reduced, which can greatly deteriorate the strength of the paper required for corrugated cardboard. In addition, in the case of blending more than 30% by weight citrus fruit, the higher the citrus fruit gourd, the higher the blending ratio, adversely affects dehydration. .

In addition, in the case of citrus gourds collected from the citrus processing plant in Jeju Island, most of them are actually decayed. In the process of storing citrus gourds in order to produce cardboard, the decay of citrus gourds continues. Therefore, when preparing corrugated cardboard with citrus foil, an experiment was conducted to select suitable preservatives to prevent corruption of the citrus fruit and to prevent odors from the corrupted citrus fruit. As a result, it was found that the isothiazoline preservative had the most excellent effect on the odor prevention of citrus gourds.

On the other hand, citrus gourd has an essential oil component called limonene, causing layer separation, and the components suspended above make it difficult to carry out papermaking as a contaminant. Therefore, experiments were conducted on chemical components that can suppress such layer separation. As a result, it was found that when the polyamide polyepoxy emulsion, which is a dehydration accelerator, was used, such a layer separation phenomenon could be effectively suppressed.

Example  2: abolition and Citrus gourd  Preparation of Base Paper for Corrugated Cardboard Using

The waste support, which was dissociated in the pulper, was stored in the pulper chest. Subsequently, a polymer coagulant (polyacrylamide) and citrus foil were added to the pulper chest. In this case, the mixing ratio of waste support to citrus gourd is 70:30 by weight.

Then, the waste support material and citrus gourd mixture were removed from the high-density cleaner by sand and coarse foreign substances. Then, light foreign substances were removed from the turbo separator and the turbo chest was removed to remove fine substances from the low-density cleaner. It was then concentrated through a ps screen at Vibres Wheeler and the concentrate was stored in the machine chest. Then, the raw material transferred from the machine chest to the seed box (head box) was distributed to each of the beds. The stock formed in the bed was squeezed onto the blanket, subjected to a dehydration press, and then to a drying process. After drying the dried base paper in the winder and rewinder was prepared a base paper for cardboard.

Having described the specific part of the present invention in detail, it is apparent to those skilled in the art that the specific technology is merely a preferred embodiment, and the scope of the present invention is not limited thereto. Thus, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.

Figure 1a is an experimental result for selecting suitable conditions in the production of corrugated cardboard containing citrus foil, the results of rupture strength and non-rupture strength analysis.

Figure 1b is an experimental result for selecting suitable conditions in the production of corrugated cardboard containing citrus foil, compressive strength, uncompressed strength analysis results.

Figure 1c is an experimental result for selecting suitable conditions in the production of corrugated cardboard containing citrus foil, the results of analysis on basis weight.

Claims (10)

(a) dissociating waste paper to obtain waste paper slurry; (b) obtaining a citrus gourd; (c) blending the citrus fruit cake and waste paper slurry, wherein the blending ratio is 20-30% by weight of citrus fruit cake and the waste paper slurry is 70-80% by weight; (d) a method for producing a citrus foil-containing corrugated cardboard base paper comprising the step of stirring, dehydrating and drying the mixture of (c), wherein the citrus foil in step (c) or (d) In order to suppress the separation of the layer by using a polyamide polyepoxy dehydration accelerator characterized by further using. delete delete The method of claim 1, wherein in step (b), (c) or (d) isothiazoline preservatives are used in order to prevent odor caused by citrus gourd is manufactured of citrus foil-containing cardboard base paper Way. The method of claim 1, wherein in the step (a), (c) or (d) the strength enhancer is additionally used. 6. The method of claim 5, wherein the strength enhancer is a non-formalin-based epoxidized polyamine resin. delete Base paper for corrugated paper comprising 20-30% by weight of waste paper fibers and 70-80% by weight of citrus foil fibers. delete The cardboard base paper according to claim 8, wherein the base paper for cardboard is produced by the method of any one of claims 1 to 6.

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