Oil adsorbent body and manufacturing method of oil adsorbent body

Abstract

To provide an oil adsorbent body that can be manufactured in a short time with reduced costs and a manufacturing method of an oil adsorbent body.SOLUTION: A manufacturing method of an oil adsorbent body includes pulverization of, at least, a defective paper added with a wet strength agent and a size agent and not needing addition of new wax, a used paper added with a wet strength agent and a size agent and not needing addition of new wax, or a paper to be wasted added with a wet strength agent and a size agent and not needing addition of new wax.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an oil adsorbent and a method for manufacturing an oil adsorbent, and in particular, to a method for manufacturing an oil adsorbent in a short time and at low cost. The present invention relates to an oil adsorbent that can be manufactured without any trouble and a method for manufacturing an oil adsorbent. [Background technology]

[0002] The present applicant previously disclosed an oil adsorbent (see Patent Document 1). This oil adsorbent is made by immersing waste cardboard in molten wax in a tank, and then The recycled paper cardboard is taken out from the container, cooled, and the entire outer surface of the recycled paper cardboard is then coated with a coating of The coated recycled cardboard is then crushed into fibers. It is used to manufacture oil adsorbents. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 3-44623 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the case of the oil absorbent, the waste cardboard is immersed in the molten wax in the tank. Then, the recycled cardboard is removed from the tank and cooled to remove the outer surface of the recycled cardboard. The entire surface must be coated with wax, which takes time and effort. There was a problem.

[0005] The present invention provides an oil adsorbent and a method for manufacturing an oil adsorbent, which have been made in consideration of the above problems. The purpose is to [Means for solving the problem]

[0006] The method for producing an oil adsorbent according to claim 1 is obtained by pulverizing at least defective paper to which a wet strength agent and a sizing agent have been added, which does not require the addition of new wax, or used paper to which a wet strength agent and a sizing agent have been added, which does not require the addition of new wax, or waste paper to which a wet strength agent and a sizing agent have been added, which does not require the addition of new wax.

[0007] Furthermore, the method for producing an oil adsorbent according to claim 2 is obtained by pulverizing at least defective unbleached kraft paper to which a paper strength agent and a sizing agent have been added and to which no new wax needs to be added, or used unbleached kraft paper to which a paper strength agent and a sizing agent have been added and to which no new wax needs to be added, or unbleached kraft paper for disposal to which a paper strength agent and a sizing agent have been added and to which no new wax needs to be added.

[0008] In addition, the method for manufacturing an oil adsorbent described in claim 3 involves crushing at least a material that includes defective hemp material that does not require the addition of new wax, or a material that includes used hemp material that does not require the addition of new wax, or a material that includes discarded hemp material that does not require the addition of new wax.

[0009] The oil adsorbent described in claim 4 is obtained by pulverizing at least defective paper to which a wet strength agent and a sizing agent have been added that do not require the addition of new wax, or used paper to which a wet strength agent and a sizing agent have been added that do not require the addition of new wax, or waste paper to which a wet strength agent and a sizing agent have been added that do not require the addition of new wax.

[0010] The oil adsorbent according to claim 5 is obtained by pulverizing at least defective unbleached kraft paper to which a paper strength agent and a sizing agent have been added and to which no new wax needs to be added, or used unbleached kraft paper to which a paper strength agent and a sizing agent have been added and to which no new wax needs to be added, or unbleached kraft paper for disposal to which a paper strength agent and a sizing agent have been added and to which no new wax needs to be added.

[0011] In addition, the oil adsorbent described in claim 6 is obtained by crushing at least one material containing defective hemp material that does not require the addition of new wax, or one containing used hemp material that does not require the addition of new wax, or one containing discarded hemp material that does not require the addition of new wax. [Effects of the Invention]

[0012] According to the method for producing an oil adsorbent as set forth in claim 1, the oil adsorbent is produced by crushing at least defective paper to which a wet strength agent and a sizing agent have been added, or used paper to which a wet strength agent and a sizing agent have been added, or waste paper to which a wet strength agent and a sizing agent have been added. In other words, the added wet strength agent keeps the crushed fibers strong even after the paper is crushed, and the added sizing agent keeps the crushed fibers water-repellent even after the paper is crushed. Therefore, there is no need to add new wax or the like during the production process, and the oil adsorbent can be produced in a short time with reduced costs and resources. When the oil adsorbent is introduced into a mixture of water and oil, it absorbs very little water, and oil can be preferentially adsorbed in the gaps between the fibers of the oil adsorbent formed by crushing ``paper to which a wet strength agent and a sizing agent have been added.'' Furthermore, the oil adsorbent of the present invention has stronger fibers and wider gaps between the fibers than the fibers of the cardboard that constitutes conventional oil adsorbents, and therefore has improved oil adsorption capacity.

[0013] According to the method for producing an oil adsorbent as set forth in claim 2, at least a paper strength agent and a saponin are added. Defective unbleached kraft paper containing added sizing agents or unbleached kraft paper containing added strength agents and sizing agents. Post-consumer unbleached kraft paper or waste paper containing added strength and sizing agents. Since it is made from crushed unbleached kraft paper, the added paper strength agent is After the raft paper is crushed, the crushed fibers retain their strength and the added sizing agent remains unbleached. In order to maintain the water-repellent properties of the crushed fibers even after the kraft paper is crushed, Since there is no need to add new wax, etc., it can be used in a short time, reducing costs and resources. It is possible to manufacture it, and when the oil absorbent is added to a mixture of water and oil, it absorbs almost no water. The oil was formed by crushing "unbleached kraft paper to which paper strength agents and sizing agents have been added." The oil can be preferentially adsorbed in the gaps between the fibers of the adsorbent. Since it uses unbleached kraft paper with strong fibers, it is not as tough as the corrugated board that makes up conventional oil absorbents. The fibers are stronger than those of polyethylene terephthalate (PE), and the gaps between the fibers are larger, improving the oil absorption capacity.

[0014] According to the method for producing an oil adsorbent as set forth in claim 3, at least defective hemp material or containing used hemp material or discarded hemp material. Since it is crushed, it contains "defective hemp material" that is rarely reused, or We aim to make effective use of "items containing used hemp materials or items containing hemp materials to be disposed of," The oil contained in hemp has the same water-repellent properties as wax, so new Since there is no need to add wax, it can be produced in a short time and at low cost. If you add oil absorbents to the mixture of water and oil, it will not absorb much water and the oil will be absorbed by the " can be preferentially adsorbed to the fibers formed by pulverizing the " and the gaps formed by the fibers, The oil adsorbent of the present invention uses hemp, which has inherently strong fibers, and is therefore different from conventional oil adsorbents in terms of construction. The fibers are stronger than those of cardboard, and the gaps between the fibers are wider, improving oil absorption capacity. do.

[0015] Furthermore, the oil adsorbent of claim 4 is produced by crushing at least defective paper to which a wet strength agent and a sizing agent have been added, or used paper to which a wet strength agent and a sizing agent have been added, or waste paper to which a wet strength agent and a sizing agent have been added. In other words, the added wet strength agent keeps the crushed fibers strong even after the paper is crushed, and the added sizing agent keeps the crushed fibers water-repellent even after the paper is crushed. Therefore, there is no need to add new wax or the like during the manufacturing process, and the oil adsorbent can be manufactured in a short time with reduced costs and resources. When the oil adsorbent is placed into a mixture of water and oil, it absorbs very little water, and oil can be preferentially adsorbed in the gaps between the fibers of the oil adsorbent formed by crushing "paper to which a wet strength agent and a sizing agent have been added." Furthermore, the oil adsorbent of the present invention has stronger fibers and wider gaps between the fibers than the fibers of the cardboard that constitutes conventional oil adsorbents, and therefore has improved oil adsorption capacity.

[0016] Furthermore, the oil adsorbent of claim 5 is produced by pulverizing at least defective unbleached kraft paper to which a paper strength agent and a sizing agent have been added, or used unbleached kraft paper to which a paper strength agent and a sizing agent have been added, or unbleached kraft paper for disposal to which a paper strength agent and a sizing agent have been added. In other words, the added paper strength agent keeps the pulverized fibers of the unbleached kraft paper strong even after it has been pulverized, and the added sizing agent keeps the pulverized fibers water-repellent even after it has been pulverized. This eliminates the need to add new wax or the like during the manufacturing process, allowing the oil adsorbent to be manufactured in a short time with reduced costs and resources. When the oil adsorbent is introduced into a mixture of water and oil, it absorbs very little water, and oil can be preferentially adsorbed into the gaps between the fibers of the oil adsorbent formed by pulverizing "unbleached kraft paper to which a paper strength agent and a sizing agent have been added." Furthermore, the oil adsorbent of the present invention has stronger fibers and wider gaps between the fibers than the fibers of the cardboard that constitutes conventional oil adsorbents, and therefore has improved oil adsorption capacity.

[0017] Furthermore, the oil adsorbent described in claim 6 includes at least those containing defective hemp materials, those containing used hemp materials, or those obtained by crushing hemp materials containing discarded hemp materials, and therefore aims to make effective use of "those containing defective hemp materials, those containing used hemp materials, or those containing discarded hemp materials," which are rarely reused; the oil contained in hemp exhibits hydrophobic properties similar to those of wax, so there is no need to add new wax during the manufacturing process, and so it can be manufactured in a short time and at low cost; when the oil adsorbent is placed into a mixture of water and oil, it does not absorb much water, and the oil is preferentially adsorbed into the fibers formed by crushing the "those containing hemp materials" and the gaps formed by the fibers; and because the oil adsorbent of the present invention uses hemp, which has inherently strong fibers, the fibers are stronger and the gaps between the fibers are wider than the fibers used in the cardboard that makes up conventional oil adsorbents, thereby improving oil adsorption capacity. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a photograph of an oil adsorbent according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] An oil adsorbent and a method for manufacturing an oil adsorbent according to one embodiment of the present invention will now be described.

[0020] (Example 1) Defective cardboard, used cardboard, or cardboard for disposal When crushed The oil adsorbent (the manufacturing method of the oil adsorbent) is at least a defective cardboard (for example, Cardboard that has been mishandled and cannot be commercialized, cardboard that is dirty and cannot be commercialized, etc.) is crushed (for example, The material is crushed into fibers, for example, using a fiber spreader (not shown), to produce fibers with a length of 0. The fibers are opened to about 0.3cm to 0.5cm. The raw material for the oil adsorbent shown in Figure 1 is not limited to defective cardboard, but can also be used cardboard, for example. The waste material may be cardboard or discarded cardboard (e.g., unwanted cardboard). The cardboard has two inner and outer liners impregnated with wax, and a and a wax-impregnated core sandwiched between the cardboard and the cardboard, or It is impregnated with wax.

[0021] Therefore, according to the above-mentioned oil adsorbent (the manufacturing method of the oil adsorbent), at least the defective product stage can be prevented. Oil absorbent made from crushed cardboard, used cardboard, or discarded cardboard (oil absorbent) The cardboard is made of two inner and outer liners impregnated with wax. and a wax-impregnated core sandwiched between the two liners, or The cardboard is impregnated with wax almost entirely, so it is not a defective cardboard. , or used cardboard or discarded cardboard contains wax, The two inner and outer liners impregnated with wax and the two outer liners are difficult to recycle as papermaking raw materials. "Corrugated board having a wax-impregnated core sandwiched between liners" In order to make effective use of wax-impregnated cardboard, Since there is no need to add coke, the oil adsorbent can be produced in a short time, reducing costs and resources. If an oil absorbent is placed in a mixture of water and oil, it will absorb almost no water and the oil will be absorbed in the above-mentioned step. It can be preferentially adsorbed to the fibers formed by crushing the balls and the gaps formed by the fibers. do.

[0022] Example 2: Wax-impregnated defective paper or wax-impregnated used paper or when wax-impregnated waste paper is crushed The oil absorbent (the manufacturing method of the oil absorbent) is at least a defective paper ( For example, wax-impregnated paper that has been misprinted and cannot be sold, or wax that has been soiled and cannot be sold. The paper is crushed (e.g., crushed into fibers) and crushed as shown in Fig. The fibers are opened to a fiber length of, for example, about 0.03 cm to 5 cm using a fiber opener (not shown). The raw material for the oil absorbent is wax-impregnated defective paper (e.g., misprinted commercial product). (including wax-impregnated paper that cannot be reused, wax-impregnated paper that is stained and cannot be sold, etc.) , e.g., wax-impregnated used paper or wax-impregnated waste paper (e.g. (e.g., paper impregnated with unnecessary wax).

[0023] Therefore, according to the above-mentioned oil adsorbent (the manufacturing method of the oil adsorbent), at least wax Rejected paper impregnated with wax or used paper impregnated with wax or It is made from crushed waste paper, so it is not a defective paper that has been impregnated with wax or wax. Used paper impregnated with wax or waste paper impregnated with wax contains wax. This paper contains wax, which is difficult to recycle as a raw material for papermaking. In the manufacturing process, there is no need to add any additional wax, so it takes less time and saves money and resources. It is possible to reduce the amount of oil in the oil absorbent and produce it by adding the oil absorbent to a mixture of water and oil. The fibers and fibers formed by crushing "wax-impregnated paper" absorb very little water and oil. It can be preferentially adsorbed into the gaps formed by the fibers.

[0024] Example 3: Defective paper containing a wet strength agent and a sizing agent, or a wet strength agent. Used paper with added strength agents and sizing agents, or wet strength agents and When waste paper containing sizing agents is crushed The oil adsorbent (manufacturing method of the oil adsorbent) contains at least a wet strength agent and a sizing agent. Defective paper (e.g., misprinted, non-merchantable wet strength additives and sizing agents) (paper with added wet strength agents and sizing agents, etc.) The powder is crushed (for example, crushed into fibers), and the crushing is performed, for example, by a fiber opening machine (not shown), e.g. For example, the fibers are opened to a length of about 0.03 cm to 5 cm. The raw material for the oil sorbent is a defective paper (e.g., Paper containing wet strength agents and sizing agents that cannot be sold due to printing errors, or paper that is sold as dirty paper Wet strength additives and sizing agents that cannot be used for papermaking are not limited to those used for papermaking. Used paper with added strength agents and sizing agents, or with added wet strength agents and sizing agents Waste paper that has been treated with unnecessary wet strength additives and sizing agents. be. Wet strength and sized papers are available from Cluster-Pak® paper, e.g. For example, the packaging used in beer cartons (multipacks, Cluster-Pak®) The packaging material includes a water-resistant material and a water-repellent material.

[0025] Therefore, according to the above-mentioned oil adsorbent (the manufacturing method of the oil adsorbent), at least the wet paper strength Defective paper containing strengthening agents and sizing agents, or paper containing wet strength agents and sizing agents Used paper that has been treated or waste paper to which wet strength agents and sizing agents have been added is crushed. In other words, it is not a defective paper that has wet strength additives and sizing agents added, or is used paper to which a wet strength agent and a sizing agent have been added, or Waste paper containing sized additives contains wet strength agents and sizing agents. The added wet strength agent helps the crushed fibers maintain their strength even after the paper is crushed. The sizing agent helps the crushed fibers maintain their water-repellent properties even after the paper is crushed. Since there is no need to add new waxes during the process, it can be done in a short time without incurring costs or resources. It is possible to manufacture an absorbent, and if you add the absorbent to a mixture of water and oil, most of the water will be absorbed. Oil absorbent material formed by crushing "paper to which a wet strength agent and a sizing agent have been added" The oil adsorbent of this example can preferentially adsorb oil into the gaps between the fibers of the adsorbent. The fibers are stronger than the fibers of the cardboard that make up the oil absorbent, and the gaps between the fibers are wider, so the oil The adsorption capacity is improved.

[0026] Example 4: Rejected unbleached kraft paper containing strength and sizing agents, or Post-consumer unbleached kraft paper with added strength and sizing agents; or , crushing unbleached waste kraft paper to which paper strength agents and sizing agents have been added If The oil adsorbent (manufacturing method of the oil adsorbent) contains at least a paper strength agent and a sizing agent. Defective unbleached kraft paper (e.g., misprinted unproductable paper strength additives and sachet) Unbleached kraft paper with added sizing agents, paper strength agents and sizing agents that are too dirty to be commercialized It is made by crushing (for example, crushing into fibers) unbleached kraft paper with added pulverizer. For example, the fibers are opened to a length of about 0.03 cm to 5 cm by a machine (not shown). be. The raw material for the oil adsorbent is unbleached kraft paper with added strength and sizing agents. (For example, unbleached paper containing strength and sizing agents that cannot be sold due to printing errors. Unbleached kraft paper that has been contaminated and cannot be commercialized due to the addition of paper strength enhancers and sizing agents, etc. ), but is not limited to, for example, post-consumer unbleached kraft paper to which paper strength agents and sizing agents have been added. or unbleached waste kraft paper with added strength and sizing agents (e.g., unnecessary (e.g., unbleached kraft paper with essential strength agents and sizing agents added). In addition, unbleached kraft paper to which a paper strength agent and a sizing agent have been added is used for, for example, rice and wheat bags, It is used in cement bags, etc.

[0027] Therefore, according to the above-mentioned oil adsorbent (the manufacturing method of the oil adsorbent), at least the paper strength is increased. Defective unbleached kraft paper containing strength and sizing agents, or paper strength and sizing agents Used unbleached kraft paper to which strength agents and sizing agents have been added, or Since it is made from crushed unbleached kraft paper for disposal, the added paper strength agent After unbleached kraft paper is crushed, the crushed fibers retain their strength and the added sizing agent In order to maintain the water-repellent properties of the crushed fibers even after crushing unbleached kraft paper, Since there is no need to add new waxes during the process, it can be done in a short time without incurring costs or resources. It is possible to manufacture an absorbent, and if you add the absorbent to a mixture of water and oil, most of the water will be absorbed. It does not absorb oil and is made by crushing "unbleached kraft paper with added paper strength agents and sizing agents." The oil can be preferentially adsorbed in the gaps between the fibers of the oil adsorbent. The fibers of the adhesive are stronger than those of the cardboard that makes up conventional oil absorbents, and the gaps between the fibers are The wider area improves oil absorption capacity.

[0028] (Example 5) Products containing defective hemp materials, or products containing used hemp materials, or When crushing items containing hemp materials for disposal The oil sorbent contains at least one defective hemp material (e.g., hemp material that cannot be marketed). (e.g., pulverized into fibers) The crushing is carried out, for example, by a fiber opening machine (not shown) to obtain fibers with a fiber length of, for example, 0.03 cm. The fibers are opened to about 5cm. The raw materials for the oil sorbent include those containing defective hemp materials (e.g., hemp materials that cannot be commercialized). (Jute bags, etc.) containing damaged jute material (Jute bags, etc.), but also includes, for example, used jute. These include items containing hemp materials or items containing hemp materials for disposal (e.g., unwanted hemp bags, etc.). In addition to hemp bags, hemp clothing and bags are also made of hemp. .

[0029] Therefore, according to the above-mentioned oil adsorbent (the manufacturing method of the oil adsorbent), at least the number of defective products can be reduced. Anything containing hemp material, or any thing containing used hemp material, or any thing containing hemp material for disposal It contains crushed hemp, which is rarely reused, and is therefore considered to be "defective hemp material" or The aim is to make effective use of "items containing used hemp materials or items containing hemp materials to be disposed of." In other words, the oil contained in hemp has the same water-repellent properties as wax, so Since there is no need to add wax, it can be manufactured in a short time and at low cost. If you put oil absorbent into a mixture of water and oil, it will absorb almost no water and the oil will be absorbed. It can be preferentially adsorbed to the fibers formed by crushing "material containing" and the gaps formed by the fibers. In addition, the oil adsorbent of this example uses hemp, which has inherently strong fibers, so it is The fibers are stronger than the cardboard fibers that make up the body, and the gaps between the fibers are wider, so it has better oil absorption capacity will improve.

[0030] Example 6 In the above-mentioned Examples 1, 2, 3, 4, and 5, only the cardboard was impregnated with wax. Paper only, paper only with added wet strength agent and sizing agent, paper only with added wet strength agent and sizing agent However, in the present invention, In addition to this, cardboard crushed into fibers in Example 1, wax-impregnated cardboard in Example 2, The paper to which the paper strength agent and sizing agent of Example 3 had been added was crushed into fibers. Unbleached kraft paper containing the paper strength agent and sizing agent of Example 4. The hemp material of Example 5 (for example, a hemp bag) was crushed into fibers. The oil adsorbent may be a combination of two or more of the above. For example, 50% by weight of the cardboard in Example 1 crushed into fibers, containing hemp material It may also be an oil adsorbent made by combining 50% by weight of crushed fibers (for example, hemp bags). stomach. The oil adsorbent of this example also adsorbs oil in the same manner as in Examples 1, 2, 3, 4, and 5. The effect was achieved.

Claims

1. At least, a wet strength agent and a sizing agent are added, which do not require the addition of new wax. Rejected paper or wet strength additives and sizes that do not require the addition of new wax Used paper with added wax or wet strength agent that does not require the addition of new wax and an oil adsorbent characterized by being made by crushing waste paper to which a sizing agent has been added. Manufacturing method.

2. At least, paper strength agents and sizing agents are added, which do not require the addition of new wax. Unbleached kraft paper that has been used in the past, or paper strength agents that do not require the addition of new wax, Used unbleached kraft paper with added size or new wax It is made from crushed unbleached kraft paper for disposal to which no paper strength enhancers and sizing agents have been added. A method for producing an oil adsorbent, characterized by:

3. At least, it contains defective hemp material that does not require the addition of new wax, or Contains used hemp material that does not require new waxing or that does not require new waxing. The oil is obtained by crushing a material containing discarded hemp material, which does not require the addition of Method for producing an adsorbent.

4. At least, a wet strength agent and a sizing agent are added, which do not require the addition of new wax. Rejected paper or wet strength additives and sizes that do not require the addition of new wax Used paper with added wax or wet strength agent that does not require the addition of new wax and an oil adsorbent characterized by being made by crushing waste paper to which a sizing agent has been added.

5. At least, paper strength agents and sizing agents are added, which do not require the addition of new wax. Unbleached kraft paper that has been used in the past, or paper strength agents that do not require the addition of new wax, Used unbleached kraft paper with added size or new wax It is made from crushed unbleached kraft paper for disposal to which no paper strength enhancers and sizing agents have been added. An oil adsorbent characterized by the above.

6. At least, it contains defective hemp material that does not require the addition of new wax, or Contains used hemp material that does not require new waxing or that does not require new waxing. The oil is obtained by crushing a material containing discarded hemp material, which does not require the addition of Adsorbent.

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