US2020277132A1PendingUtilityA1

Biodegradable Tea and Coffee Wrapper and Tag

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Assignee: Nonwoven Network LLCPriority: Mar 3, 2019Filed: Feb 25, 2020Published: Sep 3, 2020
Est. expiryMar 3, 2039(~12.6 yrs left)· nominal 20-yr term from priority
Inventors:Stephen W. Foss
Y02W90/10D04H 1/4326B65D 65/46B65D 85/808D04H 1/435D04H 1/55D04H 1/43835B65D 65/466B65D 85/8085D04H 5/04D10B 2331/041D10B 2401/12D10B 2505/10
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Claims

Abstract

A tea and coffee bag wrapper and tag is shown with improved properties than current state of the art wrappers and tags. The novel tea bag and coffee bag tags and wrappers are non-GMO and fully compostable in about 30 days. Unlike other tags and wrappers that can remain in a compost for years, the present tags and wrappers completely biodegrade within 30 days. In one aspect, a PLA mono-component fiber is utilized at a specific blend ratio of L and D PLA structure. The manufacture of the same is also disclosed.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A non-woven fabric composition web for a tea or a coffee wrapper and tag consisting of:
 a tea or a coffee wrapper and tag having a plurality of mono-component, mono-constituent polylactic acid (PLA) fibers and a pigment;   the polylactic acid (PLA) fibers having different deniers and a blend percentages of a high melt PLA fiber and a low melt PLA fiber having a melt flow temperature in a range of 145-175° C. and 105-165° C., respectively; and   wherein, the tea or the coffee wrapper and tag are non-GMO and fully compostable in about 30 days.   
     
     
         2 . The non-woven fabric composition in  claim 1 , wherein the fibers have a weight range from 55 gsm to 150 gsm. 
     
     
         3 . The non-woven fabric composition in  claim 1 , wherein the fibers have a weight range from 55 to 75 gsm. 
     
     
         4 . The non-woven fabric composition in  claim 1 , wherein the fibers have a percentage of a high melt fiber ranging from 55% to 95%, and a percentage of a low-melt fiber ranging from 5% to 45%. 
     
     
         5 . The non-woven fabric composition in  claim 1 , wherein the fibers have a denier ranging from 0.7 to 6.0 denier. 
     
     
         6 . The non-woven fabric composition in  claim 1 , wherein the fibers have a length that ranges from 12 mm to 130 mm. 
     
     
         7 . The non-woven fabric composition in  claim 1 , wherein the fibers have a denier ranging from 1.5 to 2.5 denier. 
     
     
         8 . The non-woven fabric composition in  claim 1 , wherein the fibers have a length that ranges from 25 mm to 51 mm. 
     
     
         9 . The non-woven fabric composition in  claim 1 , wherein the pigment is a titanium dioxide pigment for making the non-woven fabric composition opaque in color. 
     
     
         10 . The non-woven fabric composition in  claim 1 ,
 wherein the pigment is a color fast pigment selected from a group consisting of Phthalo Blue, Phthalo Green, iron oxide, Yellow Ochre, and any combination thereof, and   wherein the pigment is combined with either the low melt PLA fiber, the high melt PLA fiber, or both the low and the high melt PLA fibers to provide a colored fabric.   
     
     
         11 . The non-woven fabric composition in  claim 1 , wherein the tea or the coffee wrapper and tag are printable with text, drawings, or logos in biodegradable colored ink. 
     
     
         12 . The non-woven fabric composition in  claim 1 , wherein the composition for the tea or the coffee wrapper and tag is used for wrapping meat, vegetables, fish, candy, cheese, or foodstuff to provide controlled breathability and rapid biodegradability.

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