JPWO2021241543A5 - - Google Patents
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- JPWO2021241543A5 JPWO2021241543A5 JP2022526561A JP2022526561A JPWO2021241543A5 JP WO2021241543 A5 JPWO2021241543 A5 JP WO2021241543A5 JP 2022526561 A JP2022526561 A JP 2022526561A JP 2022526561 A JP2022526561 A JP 2022526561A JP WO2021241543 A5 JPWO2021241543 A5 JP WO2021241543A5
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- paper
- water
- containing sheet
- dimensional structure
- sheet
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Description
【０００３】
ートを乾燥させることにより、前記紙含有シートを、その前記水の濃度勾配を有していた部位において、自律的に折り曲げる工程（Ｂ）と、を有し、前記工程（Ａ）では、前記紙含有シートの前記一方の面に水あるいは水のみを溶媒成分とし常温下において５質量％以下で水和パラメーターが０．５～２０．０である溶質を含む水溶液を付着させ、前記一方の面に付着させた前記水あるいは前記水溶液中の水を前記紙含有シートに浸透させる紙含有立体構造体の製造方法を提供する。
［００１０］
本発明の紙含有立体構造体の製造方法においては、前記工程（Ｂ）において、前記紙含有シートの両面のうち、前記水の濃度が高い側の面を内向きにして、前記紙含有シートを自律的に折り曲げることが好ましい。
本発明の紙含有立体構造体の製造方法においては、前記工程（Ａ）において、前記紙含有シートに浸透させる前記水の量を、１．０×１０－１２～１０ｇ／ｍｍ３とすることが好ましい。
本発明の紙含有立体構造体の製造方法においては、前記工程（Ａ）において、前記水の濃度勾配を有する部位を、前記紙含有シートに、実線状又は点線状に作製することが好ましい。
［００１１］
本発明の紙含有立体構造体の製造方法においては、前記工程（Ｂ）において、前記水の濃度勾配を有する状態の前記紙含有シートを、常圧下で、温度－２７３．１５～１．０×１０５℃、相対湿度０～１００％の条件下で乾燥させることが好ましい。
本発明の紙含有立体構造体の製造方法においては、前記工程（Ａ）において、前記紙含有シートの表面方向において、前記水の浸透量が互いに異なる、前記水の濃度勾配を有する部位を、２以上作製することが好ましい。
本発明の紙含有立体構造体の製造方法においては、前記工程（Ａ）において、互いに異なる２種以上の水溶液を、前記紙含有シートの互いに異なる領域に対して、別々に付着させることによって、前記紙含有シートの表面方向において、前記水の浸透量が互いに異なる、前記水の濃度勾配を有する部位を、２以上作製してもよい。
本発明の紙含有立体構造体の製造方法においては、前記２種以上の水溶液として、溶質の水和パラメーターがすべて互いに異なるものを用いてもよい。
発明の効果[0003]
a step (B) of autonomously folding the paper-containing sheet at the portion having the water concentration gradient by drying the sheet, wherein the step (A) includes the An aqueous solution containing water or water alone as a solvent component at room temperature and containing a solute having a hydration parameter of 0.5 to 20.0 and having a solute of 5% by mass or less at room temperature is adhered to the one surface of the paper-containing sheet, The present invention provides a method for producing a paper-containing three-dimensional structure, in which the water adhered to the paper-containing three-dimensional structure or the water in the aqueous solution permeates the paper-containing sheet.
[0010]
In the method for producing a paper-containing three-dimensional structure of the present invention, in step (B), the paper-containing sheet is placed with the surface of the paper-containing sheet having the higher water concentration facing inward. Autonomous folding is preferred.
In the method for producing a paper-containing three-dimensional structure of the present invention, in the step (A), the amount of water permeated into the paper-containing sheet may be 1.0×10 −12 to 10 g/mm 3 . preferable.
In the method for producing a paper-containing three-dimensional structure of the present invention, in the step (A), it is preferable to form the portion having the concentration gradient of water in the paper-containing sheet in the form of a solid line or a dotted line.
[0011]
In the method for producing a paper-containing three-dimensional structure of the present invention, in the step (B), the paper-containing sheet having the water concentration gradient is heated under normal pressure to a temperature of −273.15 to 1.0×. It is preferable to dry under conditions of 10 5 ° C. and relative humidity of 0 to 100%.
In the method for producing a paper-containing three-dimensional structure of the present invention, in the step (A), in the surface direction of the paper-containing sheet, two sites having a concentration gradient of the water with different permeation amounts of the water are formed. It is preferable to fabricate as described above.
In the method for producing a paper-containing three-dimensional structure of the present invention, in the step (A), two or more aqueous solutions different from each other are separately attached to different regions of the paper-containing sheet, thereby In the surface direction of the paper-containing sheet, two or more portions having the concentration gradient of the water with different permeation amounts of the water may be produced.
In the method for producing a paper-containing three-dimensional structure of the present invention, the two or more aqueous solutions may have different solute hydration parameters.
Effect of the invention
Claims (8)
前記紙含有シートに対して、その一方の面から水を浸透させることにより、前記紙含有シートの厚さ方向に水の濃度勾配を有する部位を、前記紙含有シートに１又は２以上作製する工程（Ａ）と、
前記水の濃度勾配を有する状態の前記紙含有シートを乾燥させることにより、前記紙含有シートを、その前記水の濃度勾配を有していた部位において、自律的に折り曲げる工程（Ｂ）と、
を有し、前記工程（Ａ）では、前記紙含有シートの前記一方の面に水あるいは水のみを溶媒成分とし常温下において５質量％以下で水和パラメーターが０．５～２０．０である溶質を含む水溶液を付着させ、前記一方の面に付着させた前記水あるいは前記水溶液中の水を前記紙含有シートに浸透させる紙含有立体構造体の製造方法。A method for producing a paper-containing three-dimensional structure, which is formed by folding a paper-containing sheet made of paper or having paper as a main component,
A step of forming one or more portions having a concentration gradient of water in the thickness direction of the paper-containing sheet in the paper-containing sheet by permeating water from one surface of the paper-containing sheet. (A) and
a step (B) of autonomously folding the paper-containing sheet at the portion having the water concentration gradient by drying the paper-containing sheet in a state having the water concentration gradient;
and in the step (A), water or only water is used as a solvent component on the one surface of the paper-containing sheet, and the hydration parameter is 0.5 to 20.0 at normal temperature at 5% by mass or less. A method for producing a paper-containing three-dimensional structure, wherein an aqueous solution containing a solute is attached, and the water attached to the one surface or the water in the aqueous solution is permeated into the paper-containing sheet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020090550 | 2020-05-25 | ||
| JP2020151562 | 2020-09-09 | ||
| PCT/JP2021/019718 WO2021241543A1 (en) | 2020-05-25 | 2021-05-25 | Method of manufacturing paper-containing three-dimensional structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2021241543A1 JPWO2021241543A1 (en) | 2021-12-02 |
| JPWO2021241543A5 true JPWO2021241543A5 (en) | 2023-03-15 |
Family
ID=78744483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022526561A Pending JPWO2021241543A1 (en) | 2020-05-25 | 2021-05-25 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPWO2021241543A1 (en) |
| WO (1) | WO2021241543A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7100331B1 (en) * | 2022-02-12 | 2022-07-13 | 国立大学法人 東京大学 | Folded structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5256693A (en) * | 1975-10-31 | 1977-05-10 | Sadaaki Hiraga | Device for controlling humidity of corrugated cardboard liner |
| DE4446473C1 (en) * | 1994-12-23 | 1996-03-07 | Maurer Ingo | Method for producing paper lamp shade |
| JP2003300265A (en) * | 2002-04-09 | 2003-10-21 | Mitsubishi Heavy Ind Ltd | Manufacturing apparatus for corrugated cardboard |
| JP4260549B2 (en) * | 2003-05-29 | 2009-04-30 | 学校法人早稲田大学 | Sheet member actuator and method of manufacturing the same |
-
2021
- 2021-05-25 WO PCT/JP2021/019718 patent/WO2021241543A1/en active Application Filing
- 2021-05-25 JP JP2022526561A patent/JPWO2021241543A1/ja active Pending
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