Draw tape bag
US-9522768-B2 · Dec 20, 2016 · US
Packaging bag
US2016137353A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016137353-A1 |
| Application number | US-201414771082-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 19, 2014 |
| Priority date | Feb 28, 2013 |
| Publication date | May 19, 2016 |
| Grant date | — |
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- Title
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- Abstract
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
Provided is a packaging bag which can prevent a colorant contained in a multilayer film from staining a packaged object, as well as has high mechanical strengths such as high impact resistance and high pinhole resistance. In a packaging bag formed by forming a multifold film into a bag shape, the multifold film being formed by stacking a plurality of multilayer films, a colorant is contained in a layer of the multilayer films, the layer containing the colorant being not in contact with an object to be packaged. For example, the multifold film includes two stacked multilayer film formed by flattening a tubular multilayer film. For example, the colorant can be an inorganic pigment.
First claim
Opening claim text (preview).
1 - 6 . (canceled) 7 . A packaging bag comprising: forming a multifold film into a bag shape, the multifold film being formed by stacking a plurality of multilayer films, wherein a colorant is contained in a layer of the multilayer films, the layer containing the colorant being not in contact with an object to be packaged. 8 . The packaging bag of claim 7 , wherein the multifold film further comprises two stacked multilayer films formed by flattening a tubular multilayer film. 9 . The packaging bag of claim 8 , wherein the colorant is contained in only an innermost layer of the tubular multilayer film. 10 . The packaging bag of claims 7 , wherein the colorant is an inorganic pigment. 11 . The packaging bag of claims 8 , wherein the colorant is an inorganic pigment. 12 . The packaging bag of claims 9 , wherein the colorant is an inorganic pigment.
Assignees
Inventors
Classifications
from plastics material · CPC title
Information or decoration elements, e.g. level indicators, detachable tabs or coupons · CPC title
End- or aperture-closing arrangements or devices (valves of valve bags {B65D31/14}; closures of filled bags B65D77/10) · CPC title
- B65D31/02Primary
with laminated walls · CPC title
with multiple walls (B65D81/3881 takes precedence; for shock absorbing purposes B65D81/03) · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016137353A1 cover?
- Provided is a packaging bag which can prevent a colorant contained in a multilayer film from staining a packaged object, as well as has high mechanical strengths such as high impact resistance and high pinhole resistance. In a packaging bag formed by forming a multifold film into a bag shape, the multifold film being formed by stacking a plurality of multilayer films, a colorant is contained in…
- Who is the assignee on this patent?
- Kyoraku Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B65D31/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu May 19 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).