FR2748459A1 - Method of making lightweight packaging filling - Google Patents

Abstract

The method involves mixing a binding of natural vegetable or animal glue and expanded rice or maize, potato cuttings, extruded colloidal vegetable material solution etc. The material can be treated against humidity. The glue matrix can represent between 20 and 80 percent of the total dry weight of the finished product.

Description

The present invention relates to a process for manufacturing a light biodegradable material resulting from the setting and hardening of the mixture of a binder consisting of natural vegetable and / or animal glue and expanded plants, in particular but expanded, expanded rice, cut from expanded potatoes, colloidal extruded solutions of vegetable origin and other similar materials
The expanded materials can be used separately for the manufacture of the material or, on the contrary, can be combined and constitute an aggregate. The main light materials known to date are expanded polystyrenes which have the disadvantages of being expensive, difficult to produce and polluting.

 The object of the present invention is therefore to propose a process for manufacturing a light material, of natural origin so as to best preserve the environment. This result will be obtained according to the invention using expanded plant material: expanded corn, expanded rice, cut expanded potatoes, extruded colloidal solutions of plant origin and other similar materials and natural vegetable and / or animal glue. The product thus produced makes it possible to avoid the use of expanded polystyrenes, synthetic materials, and on the contrary to use biodegradable agricultural products.

 This results in a possible revaluation of the overproduction of certain agricultural countries as well as the valuation of fallow land since the production is used, initially, for non-food purposes.

 This material offers other important advantages since it preserves the environment. Indeed this material is only made up of elements of plant and possibly animal origin.

 It is therefore a biodegradable material but also possibly consumable by certain animals and therefore recyclable.

 A treatment against humidity can be developed later.

 To make this light material you need expanded plants: expanded corn, expanded rice, cut out expanded potatoes, colloidal extruded solutions of plant origin and other similar materials. Each of these expanded plant materials can be used separately or in combination with one or more other expanded plant materials.

 For example, depending on the density sought, depending on the flexibility (or rigidity) sought, it is used expanded corn alone, expanded corn with expanded rice, expanded rice alone, expanded rice with cut potatoes, cut potatoes alone, expanded corn and cut potatoes, expanded corn with expanded rice and cut potatoes and any other combination permitted with other expanded plant materials.

 Each of these expanded plants or of these aggregates of expanded plants are bonded using a hardening agglomerant consisting of natural vegetable and / or animal glue.

 The proportions of glue used are defined according to the density sought, the flexibility or rigidity sought.

The natural glue content of the product thus produced can vary in proportions ranging from 20% to 80% of the total dry weight of the finished product.

 Resulting product composed of expanded plants, in particular expanded corn, expanded rice, cut out expanded potatoes, colloidal extruded solutions of plant origin and other similar materials.This light material is intended to replace polystyrene in packaging, packaging, the protection of goods, transport and in all other possible uses for which the biodegradability of this new material has an advantage compared to polystyrene.

Some examples of the use of this cushioning and protection material are cited (televisions, Hi-Fi equipment, household appliances and equipment, etc.), packing cases
for food or non-food purposes (tide boxes used for the transport of seafood, crates, trays, pallets, biodegradable pots for plants) and in general this list is not exhaustive, any application having a close relationship or from afar with polystyrene.

Claims (6)

1. A method of manufacturing a light biodegradable material characterized in that it results from the setting and hardening of the mixture of a binder consisting of natural vegetable and / or animal glue and expanded plants, in particular expanded corn, expanded rice, cut up expanded potatoes, colloidal extruded solutions of vegetable origin and other similar materials. 2. Method according to claim 1 characterized in that the material is treated against moisture. 3. Method according to claim 1 characterized in that the adhesive represents 20 to 80% of the total dry weight of the finished product. 4. Light biodegradable material obtained by the method according to claims 1 to 3 characterized in that it consists of expanded plants and / or colloidal solutions extruded of plant origin and bonded with a natural vegetable and / or animal glue. 5. Light biodegradable material according to claim 4 characterized in that the adhesive represents 20 to 80% of the total dry weight of the finished product. anL 6. Light biodegradable material according to one of claims 4 and 5 characterized in that it is used as packaging material.