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Biodegradable Bag

a biodegradable and non-woven technology, applied in the field of biodegradable bags, can solve the problems of waste of oxygen, waste of entire batches of recyclable plastic, and inability to meet the needs of use, and achieve the effect of cost-effectiveness

Inactive Publication Date: 2014-02-27
BECAUSE WE CARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to a non-woven biodegradable bag and a method of manufacturing it using a special material made of polylactide based on polylactic acid, polyethylene glycol, and a chain extender. The biodegradable material is non-toxic to the environment and degrades naturally. The bag has a unique design with handles and a strap for easy handling. It also has a reinforced opening for holding a prong member. The material used for the bag is a vacuum dried mixture containing polylactic acid, polyethylene glycol, and a chain extender. The process involves heat melting and filtering the material to remove impurities. The technical effects of this invention include providing a biodegradable bag with improved durability and eco-friendliness that can be used for shopping and other purposes.

Problems solved by technology

Whilst current biodegradable and compostable bags provide a solution less harmful to the environment, current biodegradable and regular disposable plastic bags require a similar amount of energy, natural resources and costs to produce.
Also mixing of biodegradable and compostable bags in recycling systems with conventional plastic bags creates a strong problem and can render entire batches of recyclable plastic useless.
Further, the breakdown of starch-based films in water consumes oxygen, resulting in oxygen depletion that contributes to algae blooms and the death of marine life.
Consequently, water, soil, and / or crop contamination could result from the use of compost with chemical residues and metabolites from biodegradable bags.

Method used

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Examples

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Embodiment Construction

[0039]Embodiments of the present invention will be described with reference to a non-woven biodegradable and compostable bag for use as a recyclable and disposable carry bag. However, it should be appreciated that embodiments of the present invention can be used to provide a non-woven biodegradable product which can be used for any other suitable applications such as secondary food packaging including take-away food packaging or the like. It will be appreciated that variations may need to be made as required.

[0040]Referring to FIG. 1, the non-woven biodegradable bag 100 is provided in accordance with embodiments of the present invention. According to some embodiments of the invention, the non-woven biodegradable bag is manufactured from a completely biodegradable Polylactide (PLA) non-woven material. PLA is a high crystalloid and linear polymer which satisfies the two primary conditions for wiredrawing to make a non-woven material. PLA or its derivatives, such as L and D type or cop...

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Abstract

The present invention provides a bag made of a non-woven biodegradable material comprising a body portion having at least one side wall and a bottom joined together to define a storage space therebetween and an opening at the top of the body portion, wherein the bag is biodegradable and non-toxic to the environment

Description

FIELD OF THE INVENTION[0001]The present invention relates generally to disposable biodegradable products. In particular, but not exclusively, the present invention relates to a non-woven biodegradable bag.BACKGROUND TO THE INVENTION[0002]Biodegradable and compostable bags are made of polymers that degrade, or decompose, when exposed to microorganisms in the presence of air, water and / or sunlight. Biodegradable and compostable bags in the marketplace are typically made from resins containing polyethylene, polyester and their blends with starches and / or heavy metals such as cadmium, lead and beryllium.[0003]Whilst current biodegradable and compostable bags provide a solution less harmful to the environment, current biodegradable and regular disposable plastic bags require a similar amount of energy, natural resources and costs to produce. Also mixing of biodegradable and compostable bags in recycling systems with conventional plastic bags creates a strong problem and can render entire...

Claims

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Application Information

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IPC IPC(8): B65D65/46
CPCB65D65/466B65D33/004B65D33/105Y02W90/10
Inventor LAY, KENNYLIN, LARRY
Owner BECAUSE WE CARE
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