Total heat exchanging element paper
US-9513069-B2 · Dec 6, 2016 · US
Clupak paper
US2016355985A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016355985-A1 |
| Application number | US-201414901997-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 11, 2014 |
| Priority date | Jul 18, 2013 |
| Publication date | Dec 8, 2016 |
| Grant date | — |
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- Title
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Abstract
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Clupak paper is manufactured using a gap-former paper-making machine equipped with a Clupak system, in such a way that its longitudinal tensile energy absorption index and lateral tensile energy absorption index as specified in JIS P8113 become 2.5 J/g or more and 1.0 J/g or more, respectively. The paper has excellent strength characteristics in both the longitudinal and lateral directions, especially in the longitudinal direction so that when the Clupak paper can be processed into a sack, the sack rarely breaks.
First claim
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1 . Clupak paper whose longitudinal tensile index and lateral tensile index as specified in JIS P8113: 2006 are 60 N·m/g or more and 28 N·m/g or more, respectively. 2 . Clupak paper whose longitudinal tensile energy absorption index and lateral tensile energy absorption index as specified in JIS P8113: 2006 are 2.5 J/g or more and 1.0 J/g or more, respectively. 3 . Clupak paper whose longitudinal tensile stiffness index and lateral tensile stiffness index as specified in ISO/DIS 1924-3 are 4.0 kN·m/g or more and 2.8 kN·m/g or more, respectively. 4 . Clupak paper according to claim 1 , whose longitudinal tear index and lateral tear index as specified in JIS P-8116: 2000 are 12 mN·m2/g or more and 20 mN·m2/g or more, respectively. 5 . Clupak paper according to claim 1 , whose freeness after disintegration as measured according to a measurement method specified in JIS P8121: 1995 based on pulp that has been disintegrated as specified in JIS P8220: 1998, is 400 to 700 ml. 6 . A method for manufacturing Clupak paper, which is a method for manufacturing kraft paper according to claim 1 , using a gap-former paper-making machine equipped with a Clupak system. 7 . A method for manufacturing Clupak paper according to claim 6 , using pulp material containing pulp that has been beaten at high concentration. 8 . Clupak paper according to claim 2 , whose longitudinal tear index and lateral tear index as specified in JIS P-8116: 2000 are 12 mN·m2/g or more and 20 mN·m2/g or more, respectively. 9 . Clupak paper according to claim 3 , whose longitudinal tear index and lateral tear index as specified in JIS P-8116: 2000 are 12 mN·m2/g or more and 20 mN·m2/g or more, respectively. 10 . Clupak paper according to claim 2 , whose freeness after disintegration as measured according to a measurement method specified in JIS P8121: 1995 based on pulp that has been disintegrated as specified in JIS P8220: 1998, is 400 to 700 ml. 11 . Clupak paper according to claim 3 , whose freeness after disintegration as measured according to a measurement method specified in JIS P8121: 1995 based on pulp that has been disintegrated as specified in JIS P8220: 1998, is 400 to 700 ml. 12 . Clupak paper according to claim 4 , whose freeness after disintegration as measured according to a measurement method specified in JIS P8121: 1995 based on pulp that has been disintegrated as specified in JIS P8220: 1998, is 400 to 700 ml. 13 . A method for manufacturing Clupak paper, which is a method for manufacturing kraft paper according to claim 2 , using a gap-former paper-making machine equipped with a Clupak system. 14 . A method for manufacturing Clupak paper, which is a method for manufacturing kraft paper according to claim 3 , using a gap-former paper-making machine equipped with a Clupak system. 15 . A method for manufacturing Clupak paper, which is a method for manufacturing kraft paper according to claim 4 , using a gap-former paper-making machine equipped with a Clupak system. 16 . A method for manufacturing Clupak paper, which is a method for manufacturing kraft paper according to claim 5 , using a gap-former paper-making machine equipped with a Clupak system. 17 . A method for manufacturing Clupak paper according to claim 13 , using pulp material containing pulp that has been beaten at high concentration. 18 . A method for manufacturing Clupak paper according to claim 14 , using pulp material containing pulp that has been beaten at high concentration. 19 . A method for manufacturing Clupak paper according to claim 15 , using pulp material containing pulp that has been beaten at high concentration. 20 . A method for manufacturing Clupak paper according to claim 16 , using pulp material containing pulp that has been beaten at high concentration.
Assignees
Inventors
Classifications
Mechanical treatment (D21H25/08, D21H25/18 take precedence) · CPC title
of the twin-wire type · CPC title
- D21H27/00Primary
Special paper not otherwise provided for, e.g. made by multi-step processes · CPC title
- D21H27/005Primary
relating to physical or mechanical properties, e.g. tensile strength, stretch, softness · CPC title
Packing paper (packaging materials of special type or form B65D65/38) · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016355985A1 cover?
- Clupak paper is manufactured using a gap-former paper-making machine equipped with a Clupak system, in such a way that its longitudinal tensile energy absorption index and lateral tensile energy absorption index as specified in JIS P8113 become 2.5 J/g or more and 1.0 J/g or more, respectively. The paper has excellent strength characteristics in both the longitudinal and lateral directions, esp…
- Who is the assignee on this patent?
- Jujo Paper Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification D21H27/00. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Thu Dec 08 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).