Film-forming product for coating solid forms, process for its manufacture and products coated with this film-forming product
AssigneeSociete Anonyme Societe D'Exploitation De Produits Pour Les Industries Chimiques S.E.P.P.I.C.
InventorGerard Trouve
Life of this patent
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Abstract
The present invention relates to a film-forming product for coating solid forms, to a process for the manufacture of this film-forming product and to products coated with this film-forming product. According to the invention, this film-forming product takes the form of homogeneous granular particles which can easily be dispersed in an aqueous or organic solvent and which make it possible to obtain a uniform non-matt film, and its dry matter comprises: at least one ingestible, non-toxic film-forming substance in an amount of between 30 and 95% by weight; at least one colored pigment in an amount of between 5 and 50% by weight; and if appropriate, at least one edible plasticizer in an amount less than or equal to 30% by weight.
Claims24
In a film-forming product for coating a solid form wherein the product has a dry matter comprising a film-forming non-toxic edible substance, an edible colorant and an edible plasticizer and is dispersible in an aqueous or organic solvent whereupon it can be used to coat said solid form, the improvement wherein the dry matter of the product (a) is free of .alpha.-cellulose and comprises said edible, non-toxic film-forming substance in an amount of between 30 and 95% by weight;
- said edible colorant in an amount up to 50% by weight;
- and said edible plasticizer in an amount up to 30% by weight, and (b) has the form of homogeneous granular particles such that, when dispersed in said aqueous or organic solvent, the product can be used to coat said solid form with a uniform non-matte film.
In a process for preparing a dry edible film coating composition which can be constituted with a solvent to form a dispersion for coating a solid form, wherein a film forming non-toxic edible substance is combined with an edible colorant and an edible plasticizer so that the composition contains dry matter which contains said film forming substance, said colorant and said plasticizer, the improvement comprising forming said composition so that the dry matter is free of a-cellulose and contains the film-forming substance in a total amount of between about 30-95% by weight, the colorant in an amount of up to about 50% by weight, and the plasticizer in an amount of up to about 30% by weight by a process comprising the following steps:
- (a) preparing an aqueous dispersion comprising said colorant, said plasticizer and a first portion of said film forming substance, with said first portion comprising between about 0.01 and 5% by weight of the total amount of the film forming substance;
- (b) mixing the aqueous dispersion with a second portion of the film forming substance in a mixer-granulator to form a moist mass, with said second portion comprising between about 95 and 99.99% by weight of the total amount of the film forming substance;
- and (c) grinding, drying and, if necessary, sieving the moist mass to obtain homogeneous granular particles which can be dispersed in an aqueous or organic solvent to form a dispersion which can be used to coat the solid form with a uniform non-matte film.
In a process for preparing a dry edible film coating composition which can be constituted with a solvent to form a dispersion for coating a solid form, wherein a dry film forming non-toxic edible substance is combined with an edible colorant and an edible plasticizer so that the composition contains dry matter which comprises said film forming substance, said colorant and said plasticizer, the improvement comprising forming said composition so that the dry matter is free of .alpha.-cellulose and contains the film-forming substance in a total amount of between about 30-95% by weight, the colorant in an amount of up to about 50% by weight, and the plasticizer in an amount of up to about 30% by weight by a process comprising the following steps:
- (a) preparing an aqueous dispersion comprising said colorant, said plasticizer and a first portion of said film forming substance, with said first portion comprising between about 0.01 and 5% by weight of the total amount of the film forming substance;
- (b) mixing the aqueous dispersion with a second portion of the film forming substance in a fluidized air bed, with said second portion comprising between about 95 and 99.99% by weight of the total amount of the film forming substance, whereby to obtain homogeneous granular particles which can be dispersed in an aqueous or organic solvent to form a dispersion which can be used to coat the said form with a non-uniform matte film.
Dependencies are inferred from the claim text.