Functional paper manufacturing procedure

JP2025527290APending Publication Date: 2025-08-20デッツァーカーステンノルベルトヨハン
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Patent Information

Application Number
JP2025506112
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-08-05
Filing Date
2023-08-02
Publication Date
2025-08-20

AI Technical Summary

Technical Problem

Existing fiber-based materials such as paper, paperboard, and corrugated cardboard do not release flavors, nutrients, additives, and/or starch upon contact with water, limiting their functional applications.

Method used

A process involving dissolving cellulose fibers in a liquid and boiling above its boiling point with additives like sweeteners and preservatives, followed by adding desired ingredients, breaks hydrogen bonds and forms new molecular bonds to incorporate aromas, nutrients, and starch, allowing release upon contact with water.

Benefits of technology

The treated fibers enable the release of flavors, nutrients, and starch upon contact with water, enhancing their functional properties for applications like filter paper and beverage containers.

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Abstract

The present invention addresses the challenges of producing fiber-based materials, such as paper, paperboard, and corrugated cardboard. These materials are not known to have the ability to release (or distribute) flavors, nutrients, additives, and / or starch upon contact with water (e.g., hydrolysis). This problem is solved by a process (treatment) that breaks (decomposes) the hydrogen bonds between hydrogen and oxygen atoms in the cellulose fibers used in papermaking. This process involves dissolving cellulose (cellulose fibers) in a liquid (e.g., water) and boiling it above its boiling point. Next, a sweetener (e.g., cyclamate, saccharin, saumatin, fructose), citric acid as an oxidizing agent, and sorbic acid / potassium sorbate as a preservative are added. The desired release agent / function, such as flavors, nutrients, additives, and / or starch, is then added to the boiling liquid, and the liquid containing the fiber material is boiled for a period of time. Using conventional papermaking methods, the liquefied cellulose (cellulose fibers) is then further processed and dried in the usual manner.
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Description

[Technical Field]

[0001] The present invention relates to a method for producing fibrous materials such as paper, cardboard, and thick board. Summary of the Invention

[0002] The objective of the present invention is for the resulting fiber-based material (eg, paper) to release or distribute fragrances, nutrients, additives, and / or starch when contacted with water (eg, hydrolysis).

[0003] The present invention also relates to a method for producing such a fibrous material (e.g., paper). Hitherto, no general class of fibrous material having such properties is known.

[0004] The produced paper (fibrous material) reacts with water through hydrolysis or other processes, washing out aromas, nutrients, additives, and / or starch, thereby changing the properties of the water (liquid) it comes into contact with. The paper according to the present invention is suitable for use as filter paper for producing beverages using a filtration process, as paper cups and plates (e.g., cardboard beverage cups, cardboard food plates, rigid paper cups and plates), and as cardboard beverage containers for pouring liquids (e.g., water) into which beverages or food are prepared. Further applications in the food industry and / or other fields are also conceivable. The properties of the resulting liquid (drink / water) change (e.g., improve) through contact with the fibrous material (paper) through hydrolysis or other processes.

[0005] The method for producing such fiber-based materials (e.g., paper) involves dissolving or diluting to a high concentration pulp (wood pulp, semi-pulp, and / or cellulose) typically used in papermaking in a liquid (e.g., water). In the present invention, to produce functional paper, the fiber-containing liquid mixture is heated to a temperature above the boiling point. Subsequently, sweeteners (e.g., cyclamic acid, saccharin, thaumatin, fructose), acidulants (e.g., citric acid), and preservatives (e.g., sorbic acid, potassium sorbate) are added. Further, desired releasable ingredients, such as aromas, nutrients, additives, and / or starch, are added to the boiling liquid, and the fiber-containing liquid is boiled for a certain period of time (e.g., 5 minutes).

[0006] The present invention is characterized by treating the molecular chains (molecules, ring structures) of the cellulose fibers of the pulp used, as described in Section 5 above. Through this process, hydrogen bonds (bonds between H-atoms and O-atoms) in the cellulose fibers are cleaved (decomposed). Furthermore, by adding starch molecules of sweeteners (e.g., cyclamic acid, saccharin, thaumatin, fructose, etc.) and other substances described in Section 5, the mixture is heated above the boiling point (boiling state) or cooled below the boiling point after a certain period of time, causing the starch molecules of the sweetener to attach to the cellulose molecules, forming new bonds.

[0007] The present invention features the construction of novel or different molecular chains (molecules, ring structures) by this method, which result in reactions such as the formation of hydrogen bonds between cellulose molecules and starch molecules, and which can incorporate, incorporate, or attach aromas, nutrients, additives, or other starch-based substances to provide desired reactions or functions.

[0008] The present invention is characterized in that the normal standard papermaking process can be continued after the process described in Section 5. That is, the treated pulp (e.g., wood pulp, semi-pulp, and / or cellulose) can be used directly in the initial stage of the normal papermaking process.

[0009] The present invention is characterized by the fact that fibrous materials (e.g., paper, cardboard, and cardboard) are dried at a later stage in the conventional papermaking process. During this production stage, condensation reactions of molecular chains (molecules, ring structures) can occur. The molecular chains (molecules, ring structures) form new or modified bonds, such as hydrogen bonds between cellulose and starch molecules. These molecular chains (molecules, ring structures) function to contain, incorporate, or attach aromas, nutrients, additives, and other starch-based substances, releasing them upon contact with water (e.g., hydrolysis).

Claims

1. A fiber-based material that can be used for papermaking, characterized in that it is made from pulp (e.g., wood pulp, semi-pulp, and / or pulp) that has been significantly diluted with boiling water to a liquid state, and then sweeteners (e.g., cyclamate, saccharin, saumatin, fructose), oxidizing agents such as citric acid, and preservatives such as sorbic acid / potassium sorbate are added. Then, certain functions / reactions are added such as aromas, nutrients, additives, and / or starches that are adjusted within the substance / ingredient that is cooked for a certain period of time.

2. The fiber-based material according to claim 1, characterized in that the molecular chains (molecules, rings) of the cellulose fibers of the pulp form new bonds with the molecules (molecular chains, rings) of the added substance (e.g., saccharin molecules).

3. 10. The fiber-based material of claim 1 and / or claim 2, characterized in that the fiber-based material releases / distributes aromas, nutrients, additives, and / or starches through contact with water (e.g., hydrolysis).

4. A hot filter paper or filter paper (e.g. coffee filter) characterized in that it is manufactured using a fiber-based material according to claim 1 and / or claim 2 and / or claim 3.

5. 1. A food contact item / material (e.g. cardboard drinking cup, cardboard food plate) characterized in that it uses a fiber-based material according to claim 1 and / or claim 2 and / or claim 3 for producing a food / drink such as a mixed drink, luxury item or convenience food through filling / wetting / contact (e.g. hydrolysis) with a liquid (e.g. water).

6. 10. Use / application for improving by hydrolysis (contact with water) a food / food product comprising a fiber-based material according to claim 1 and / or claim 2 and / or claim 3.

7. 1. A commodity / product produced by hydrolysis (contact with water) from a fiber-based material according to claim 1 and / or claim 2 and / or claim 3, characterised in that the commodity / product is used as a food or drink per se.