KR100968906B1 - Paper including pulp of rape - Google Patents

Abstract

The present invention relates to a paper containing rapeseed pulp, and more particularly, to a paper prepared by mixing pulp obtained from rapeseed flowers, leaves, and stems with ordinary pulp.

Since the rapeseed pulp obtained from the rapeseed in the present invention has a unique color, the paper produced using the rapeseed also exhibits a unique color and pattern, and has excellent opacity and abrasion resistance even when manufactured in a thin thickness. Paper containing the rapeseed pulp of the present invention can be used as a printing paper, wrapping paper, wallpaper, or the like, or can be used to manufacture paper supplies such as notes, note paper, packaging bags, packaging boxes, disposable machines.

Rapeseed pulp, paper, printing paper, wrapping paper, packaging bag, packaging box, disposable machine, Korean paper, wallpaper.

Description

Paper containing rapeseed pulp {Paper including pulp of rape}

The present invention relates to a paper containing rapeseed pulp, and more particularly, to a paper manufactured by mixing rapeseed pulp extracted from rapeseed flowers, leaves, and stems with wood pulp, docpulp, paper pulp and the like and a paper article using the same.

Rapeseed is a cruciferous plant, which is cultivated mainly in the southern part of the country. It is generally sown in autumn and blooms and fruites in the following spring, leaves are harvested in late winter or early spring, and seeds are harvested in early summer. Rapeseed oil (canola oil), which is extracted from the seeds of rapeseed, is widely used for food, the leaves of rapeseed are used for cooking as herbs, and the rapeseed flower field in full bloom is highly valuable as a tourist resource.

Thus, rapeseed can be used as a material of paper in addition to edible and ornamental use, and as a technology related thereto, the present inventors previously provided Hanji using powder of rapeseed flower leaves of Republic of Korea Patent No. 10-730463. The patent provides hanji exhibiting beautiful color and feel by mixing and beating 40-60 wt% of rapeseed leaf powder and 40-60 wt% of pulping pulp, but the hanji powder is not a fiber of rapeseed petals. Since it is manufactured by adding, only a small amount of addition is possible to form paper and maintain proper strength. Especially, when used in combination with general wood pulp instead of long pulps, the amount of use is more limited. The manufacture of the sun has a limit that is difficult to apply.

An object of the present invention is to provide a method for producing rapeseed pulp that can be used as a material of paper.

It is an object of the present invention to provide a paper and a paper article including rapeseed pulp and exhibiting a unique color and excellent durability and opacity even when manufactured in a thin thickness.

In order to achieve the above object, the present invention provides a paper containing rapeseed pulp and a paper article using the same.

In the present invention, rapeseed pulp is mixed with various pulp including wood pulp to produce paper and paper products. Examples of pulp mixed with rapeseed pulp include pulped pulp and paper pulp, which is recycled wood pulp, in addition to wood pulp. Such conventional pulp can be freely selected according to the purpose, and pulp mixed with these may be used. It may be.

The manufacturing process of rapeseed pulp includes raw material selection step, washing step, cooking step, dust removal step, selection step, washing and concentration step, specific methods are as follows.

[Production Method 1] Rapeseed Pulp

[Step 1] Raw material selection

Remove the roots of the rapeseed, prepare leaves, flowers, stems and cut them finely. At this time, if the cutting interval is too wide, it is preferable to cut at about 0.5cm intervals because the sodium hydroxide component does not penetrate well into the cooking process because it takes a long time and the efficiency may decrease.

[Step 2] Wash

Screen to pick out impurities and wash with water.

[Step 3] Cooking

The washed rapeseed is placed in a cooking part (digest) and cooked with an aqueous sodium hydroxide solution to make fiber.

At this time, sodium hydroxide is added to dissolve and remove components other than cellulose. When the concentration of sodium hydroxide is too low, the cooking time is long, and the removal efficiency is decreased. When the concentration is too high, the yield is reduced by breaking down the cellulose. Therefore, it is preferable to use an aqueous solution of 2% by weight, and it can be pulped by cooking at a high temperature for about 30 minutes.

[Step 4] Dust Removal

Remove foreign substances introduced with rapeseed using centrifugal damper.

[Step 5] Selection

Remove foreign substances while choosing fiber.

[Step 6] washing and concentration

In order to remove the remaining liquid in the pulp, it is washed with water, and the washed pulp is dehydrated and concentrated.

Rapeseed pulp prepared by the above method may be mixed with wood pulp or docpulp, paper pulp and the like to produce a variety of paper and paper products.

Rapeseed paper is prepared using pulp mixed with rapeseed pulp according to the manufacturing method 1 and wood pulp or high paper according to a known method. The manufacturing process of rapeseed paper includes dissociation step, confession step, chemical addition step, screening step, papermaking step, pressing step, drying step, calendaring step and packing step. have. Rapeseed paper may be used directly as printing paper, wrapping paper, wallpaper, etc. according to the characteristics of the paper, or may be cut and glued to manufacture paper items such as notes, note paper, packaging bags, and packing boxes.

[Manufacturing method 2] rapeseed paper manufacturing

[Step 1] Harry

After mixing the rapeseed pulp prepared according to the above production method 1 and the wood pulp prepared by a known method, water is added to the mixed pulp to dissociate. In this case, if the amount of rapeseed pulp is too large, the strength may be reduced. If the amount of rapeseed pulp is too small, the flavor or color of the rapeseed does not appear. It is desirable to.

In this case, instead of the wood pulp may be used recycled pulp paper pulp or mixed wood pulp and paper pulp.

[Step 2] Confession

The dissociated pulp is subjected to beating using a refiner according to the conditions required for the paper type in order to adjust the structural, strength and optical properties of the paper.

[Step 3] Add Drug

In order to satisfy the various properties required according to the use of paper, chemicals such as size agent, retention agent, humectant, etc. are added to the beaten pulp.

[Step 4] Screening

The screening process which breaks up an aggregate is performed in order to make paper-forming formation easy.

[Step 5] Grassland

The pulp mixture is papered in the form of paper.

[Step 6] Crimp

The paper is obtained from the paper making process and then squeezed to squeeze out water.

[Step 7] Drying

Remove the moisture of the paper, which has undergone the pressing step.

[Step 8] Calendar Ring

Make the paper uniform.

[Step 9] Packing

Finally, dried and calendered paper is cut and packed into sheets or rolls.

In addition, by mixing the rapeseed pulp and Doc pulp according to the manufacturing method 1 can be prepared hanji, rapeseed hanji can be used as a wrapping paper, wallpaper, window paper or the like, or may be used as a material of various crafts, including lampshade. The manufacturing process of rapeseed hanji includes the dissociation step, paper weaving step, pressing step, and drying step as in general manufacturing process of hanji.

[Manufacturing Method 3] Rapeseed Rice

[Step 1] Harry

The rapeseed pulp prepared according to Preparation Method 1 above is mixed with Docpulp prepared by a known method, followed by dissociation by adding water to the mixed pulp. At this time, if the amount of rapeseed pulp is too large, the strength may be reduced. If the amount of rapeseed pulp is too small, the color, resistance, and opacity of the rapeseed are not increased. It is preferable to include in the range of.

[Step 2] Papermaking

The viscous is poured into a barrel and stirred well, then mixed with the dissociated pulp to release the fibers, and the paper is placed on the foot with a foreign body in the same manner as the conventional method.

[Step 3] Squeezing

Remove the foot with paper from the footing, turn it over on a flat surface, roll the cylinder, drain the water, lift the foot, leave only the paper, and press it with a heavy stone overnight.

[Step 4] Drying

Dry out the wet paper by brooming on a flat drying rack.

Rapeseed paper products can be produced by applying the manufacturing method of the rapeseed species or rapeseed paper of the manufacturing method 2 and 3. The rapeseed paper article may be manufactured by first cutting the paper and then gluing the paper according to the form of the paper article, or by molding the paper article instead of papermaking in the form of paper.

In one example, it can be molded in the form of a container as follows can be produced rapeseed disposable container.

[Manufacturing method 4] Rapeseed disposable container

[Step 1] Harry

The rapeseed pulp according to the above production method 1 is mixed with any one or a mixture of two or more of wood pulp, docpulp, and pulp pulp according to a known method, followed by dissociation by adding water to the mixed pulp. At this time, if the amount of rapeseed pulp is too large, the strength may drop. If the amount of rapeseed pulp is too small, the color or pattern of the rapeseed does not appear. It is preferable to make it.

[Step 2] Add Drug

Chemicals such as sizing agents, retention agents, and humectants are added to provide waterproofness and strength suitable for disposable machines.

[Step 3] Molding

It is heated and press-molded with a molding machine.

[Step 4] Drying

The molded disposable container is dried.

[Step 5] Completion

The dried disposable container is commercialized and packaged.

The rapeseed disposable container according to the present invention has a feature that the main material is made of natural pulp, so that the corrosion rate is fast and the generation of harmful substances is small even when incinerated.

Paper supplies such as rapeseed packaging box or packaging bag is prepared by the method of cutting and bonding after the rapeseed paper according to the manufacturing method 2, the box is manufactured relatively thick for sufficient strength. In this case, the manufacturing cost can be further reduced by using paper pulp.

[Manufacturing method 5] Rapeseed packaging box and packaging bag

[Step 1] Harry

The rapeseed pulp prepared according to Preparation Method 1 is mixed with any one or a mixture of wood pulp and paper pulp prepared by a known method, followed by dissociation by adding water to the mixed pulp. At this time, if the amount of rapeseed pulp is too large, the strength may be reduced. If the amount of rapeseed pulp is too small, the color, resistance, and opacity of the rapeseed are not increased. It is preferable to include in the range of.

[Step 2] Confession

The dissociated pulp is beaten with a refiner.

[Step 3] Add Drug

In order to satisfy the properties required according to the use of paper, chemicals such as a sizing agent and a humectant are added to the beaten pulp as necessary.

[Step 4] Screening

The screening process which breaks up an aggregate is performed in order to make paper-forming formation easy.

[Step 5] Grassland

The mixed pulp is papered in the form of paper.

[Step 6] Crimp

The paper is obtained from the paper making process and then squeezed to squeeze out water.

[Step 7] Drying

Remove the moisture of the paper, which has undergone the pressing step.

[Step 8] Calendar Ring

Make the paper or cardboard evenly thick.

[Step 9] Box or Bag Manufacturing

Finally, the dried and calendered paper is cut and glued in the form of a box or bag to prepare a packing box or packing bag.

Paper products containing the rapeseed pulp of the present invention exhibits a beautiful color and pattern, it is characterized by excellent heat resistance and opacity.

Since the rapeseed pulp obtained from the rapeseed in the present invention has a unique color, the paper produced using the rapeseed also exhibits a unique color and pattern, and has excellent opacity and abrasion resistance even when manufactured in a thin thickness. Paper containing the rapeseed pulp of the present invention can be used as a printing paper, wrapping paper, wallpaper, or the like, or can be used to manufacture paper supplies such as notes, note paper, packaging bags, packaging boxes, disposable machines.

In the following a specific embodiment of the present invention is presented.

Example 1 Rapeseed Pulp

[Step 1] Raw material selection

The roots of the rapeseed were removed, and leaves, flowers, and stems were prepared and cut finely at about 0.5 cm intervals.

[Step 2] Wash

Screening to filter out impurities and washing with water to remove debris.

[Step 3] Cooking

The washed rapeseed was cooked for 30 minutes with 2% by weight aqueous sodium hydroxide solution and fibrillated.

[Step 4] Dust Removal

A centrifugal damper was used to remove foreign substances introduced with the rapeseed.

[Step 5] Selection

The pulp was removed to remove foreign matter.

[Step 6] washing and concentration

Washed with water to wash the drug solution and dehydrated to prepare a rapeseed pulp.

[Table 1] Pulp Mixing Ratio of Mixing Pulp (Dry Weight)

Rapeseed Pulp Wood pulp Doc pulp High pulp
Example 2
5 95 - - 50 50 - - 90 10 - -
Example 3
5 - 95 - 50 - 50 - 90 - 10 -
Example 4
5 55 40 - 50 30 20 - 90 10 - -
Example 5
5 45 - 50 50 20 - 30 90 5 - 5
Example 6
5 - - 95 50 - - 50 90 - - 10

Example 2 Rapeseed Paper Preparation

Rapeseed paper was prepared using rapeseed pulp prepared according to Example 1 and wood pulp prepared by a known method.

[Step 1] Harry

After mixing the pulp in the weight ratio shown in Table 1 to prepare a mixed pulp, the pulp was dissociated by adding water corresponding to 9 times the weight of the mixed pulp.

[Step 2] Confession

The dissociated pulp was beaten using a refiner.

[Step 3] Add Drug

0.5 g of an alkylketen dimer (AKD) size agent, 0.5 g of a wet strength agent, and 0.5 g of a retention agent were added per 100 g of mixed pulp.

[Step 4] Screening

Screening was performed to break and select aggregates to facilitate paper-based formation.

[Step 5] Grassland

The pulp was papered in the form of paper.

[Step 6] Crimp

The paper was pressed to squeeze out water.

[Step 7] Drying

Remove the moisture of the paper, which has undergone the pressing step.

[Step 8] Calendar Ring

The paper was calendered so as to have a uniform thickness.

[Step 9] Packing

The paper was cut and packaged in the form of sheets.

Example 3 rapeseed paper production

Rapeseed paper was prepared using rapeseed pulp prepared according to Example 1 and Docpulp prepared by a known method.

[Step 1] Harry

After mixing the pulp in the weight ratio shown in Table 1 to prepare a mixed pulp, the pulp was dissociated by adding water corresponding to 9 times the weight of the mixed pulp.

[Step 2] Papermaking

0.1g per 100g of mixed pulp was mixed to loosen the fibers, and the paper was placed on the foot with a foreign body in the same manner as usual.

[Step 3] Squeezing

The foot with the paper was removed from the footing, turned on a flat surface, rolled the cylinder, drained the water, lifted the foot, left only the paper, and pressed it with a heavy stone overnight.

[Step 4] Drying

Each piece of dry paper was blotted dry on a flat drying rack with a broom.

Example 4 rapeseed disposable container production

A rapeseed disposable container was prepared using rapeseed pulp prepared according to Example 1 and wood pulp prepared by a known method.

[Step 1] Harry

After mixing the pulp in the weight ratio shown in Table 1, the pulp was dissociated by adding water corresponding to 9 times the weight of the mixed pulp.

[Step 2] Add Drug

0.4 g of an alkylketen dimer (AKD) size agent, 0.3 g of a retention agent, and 0.4 g of a wetting agent were added per 100 g of the mixed pulp.

[Step 3] Molding

It heated and press-molded at about 170 degreeC using the molding machine.

[Step 4] Drying

The molded disposable machine was dried.

[Step 5] Completion

The dried disposable machine was packaged and completed.

Example 5 Rapeseed Packaging Bag Preparation

Rapeseed packaging bags were prepared using rapeseed pulp prepared according to Example 1 and wood pulp prepared by a known method.

[Step 1] Harry

After mixing the pulp in the weight ratio shown in Table 1 to prepare a mixed pulp, the pulp was dissociated by adding water corresponding to 9 times the weight of the mixed pulp.

[Step 2] Confession

The dissociated pulp was beaten using a refiner.

[Step 3] Add Drug

0.3 g of an alkylketen dimer (AKD) humectant and 0.4 g of a size agent were added per 100 g of the mixed pulp.

[Step 4] Screening

It was screened for easy paper-forming.

[Step 5] Grassland

The mixed pulp was made in paper form.

[Step 6] Crimp

The paper peeled in the papermaking process was pressed to remove water.

[Step 7] Drying

The paper is dried.

[Step 8] Calendar Ring

The thickness of the paper was uniformly calendered.

[Step 9] Manufacture of Packaging Bags

The paper was cut and bonded in the form of a bag to prepare a packaging bag.

Example 6 rapeseed packaging box

A rapeseed packaging box was prepared using rapeseed pulp prepared according to Example 1 and paper pulp prepared through a known method.

[Step 1] Harry

After mixing the pulp in the weight ratio shown in Table 1 to prepare a mixed pulp, the pulp was dissociated by adding water corresponding to 9 times the weight of the mixed pulp.

[Step 2] Confession

The dissociated pulp was beaten using a refiner.

[Step 3] Add Drug

0.4 g of an alkylketen dimer (AKD) sizing agent was added per 100 g of mixed pulp.

[Step 4] Screening

It was screened for easy paper-forming.

[Step 5] Grassland

The mixed pulp was made in paper form.

[Step 6] Crimp

The paper peeled in the papermaking process was pressed to remove water.

[Step 7] Drying

The paper is dried.

[Step 8] Calendar Ring

The thickness of the paper was uniformly calendered.

[Step 9] Box Manufacturing

The feeder was cut and glued in the form of a box to prepare a packing box.

Claims (6)

5 to 90% by weight of rapeseed pulp on the basis of dry weight ratio, wood pulp, Doc pulp, high pulp selected from one or two selected from the mixture pulp consisting of 10 to 95% by weight mixed pulp paper. The paper according to claim 1, wherein the paper is prepared using a mixed pulp comprising 5 to 90 wt% of rapeseed pulp and 10 to 95 wt% of wood pulp, based on the dry weight ratio. The paper according to claim 1, wherein the paper is prepared using a mixed pulp consisting of 5 to 90% by weight of rape pulp and 10 to 95% by weight of Doc pulp based on a dry weight ratio. The paper according to claim 1, wherein the paper is prepared using a mixed pulp consisting of 5 to 90% by weight of rapeseed pulp and 10 to 95% by weight of paper pulp based on a dry weight ratio. The method according to any one of claims 1 to 4, The rapeseed pulp is paper, characterized in that the rapeseed is removed and the rapeseed cut and washed with 2% by weight aqueous sodium hydroxide solution for 30 minutes, and then dusted and selected, washed and concentrated. The paper according to claim 5, wherein the paper is any one of printing paper, memo paper, notes, wrapping paper, wallpaper, packaging bag, packaging box, and disposable device.