Post by Trade facilitator on Jun 3, 2017 19:46:16 GMT 1
Cassava is a multipurpose root crop that has a wide range of industrial uses. Some of the industrial uses of cassava starch are described below.
Starch: When treated appropriate!}' makes a good natural adhesive. There are basically two types of adhesives made from starches and dextrins include roll-dried adhesives and liquid adhesives.
Corrugated Cardboard: One of the large users of modified starches is he corrugated cardboard industry for the manufacture of cartons. Boxes and other packing materials. The layers of board are glued together with a suspension of raw starch in a solution of gelatinized form. The board is passed between hot rollers, which effects a gelatinization of the raw starch and results in a very strong bonding. Medium quality flours are suitable for this purpose provided the pulp content is not too high.
Remoistening Gums: These adhesives are coated and dried on surfaces, such as postage stamps and envelope flags, for moistening by the user before application to another surface. Cassava dextrins in aqueous solution are well suited for this purpose as they give a high solids solution with clean machining properties.
Wallpaper And Other Home Uses: Various types of starch- based products are used as adhesives for wallpaper and other domestic uses.
Foundry: Starch is used as an adhesive for coating the sand grains and binding them together in making cores which are placed in moulds in the manufacture of castings for metals.
Well Drilling: Starches and modified starches mixed with clay are used to give the correct viscosity and water holding capacity in bores for the exploratory drilling of oil wells or water wells. These starch products are replacing the commercial products for making the muddy materials which are indispensable for drilling wells. For this purpose cold water. Soluble pregelatinized starch which can be made up to a paste of the required concentration on the spot is desired.
Paper Industry: In the paper and board industries, starch is used in large quantities. At three points during the process:
At the end of the wet treatment, when the basic cellulose fibre is beaten to the desired pulp in order to increase the strength of the finished paper and to import body and resistance to scuffing and folding.
At the size press when the paper sheet or boated has been formed and partially dried, starch (generally oxidized or modified) is usually added to one or both sides of the paper sheet or board to improve the finish, appearance, strength and printing properties.
In the coating operation when a pigment coating agent and as an adhesive.
Textile Industry: In the textile industry, starches occupy and important place in such operations as warp sizing is the application of a protective coating to prevent the single yarns from disintegrating during weaving.
The size consists of an adhesive and a lubricant and is generally remove after weaving. Cloth finishing alters the “feel” of the fabric by making it firmer, stiffer and hearier. Cassava starch is also used for cloth printing or producing certain designs in various colours on the smooth surface of a finished fabric.
Particle Board: Cassava stalks are used to make particle boards. Stalks are cut into small sections and mixed with certain resins to make particle boards.
Cassava As A Biofuel Crop: Brazil has already started producing bio-ethanol from cassava. Many African Countries are now becoming major producers of bio-ethanol production. Cassava mutants could be developed to produce value-added biomass for cost-effective production of bio-ethanol.
Dusting Powders: Starch can be made into finely powdered substances free of grittiness. This can be applied to the skin to reduce friction and moisture. By cross-linking starch with other agents, starch can be sterilized in autoclave and used as a surgical dusting powder.
Plastic And Packaging: Starch can be incorporated into plastics to improve the biodegradability of the plastic and finished product.
Stain Remover: This can be applied directly to fabrics as a dry powder or as a paste, allowed to dry and then brush off.
Detergents: Starch is an effective dirt redisposition inhibitor preventing the re-entry of dirt once it has been removed from the fabric.
Gypsum And Minerla Fibre: Starch is used as a binder in gypsum plaster, gypsum and mineral fibre board.
Concrete: Starch is often added to concrete to reduce the set-time in cement.
Coal: Starch is used as a binder in briquettes made from coal dust.
Nappy/Diaper: Starch is used as a superabsorbent gelling material capable of sequestering sometimes their weight of moisture.
Starch: When treated appropriate!}' makes a good natural adhesive. There are basically two types of adhesives made from starches and dextrins include roll-dried adhesives and liquid adhesives.
Corrugated Cardboard: One of the large users of modified starches is he corrugated cardboard industry for the manufacture of cartons. Boxes and other packing materials. The layers of board are glued together with a suspension of raw starch in a solution of gelatinized form. The board is passed between hot rollers, which effects a gelatinization of the raw starch and results in a very strong bonding. Medium quality flours are suitable for this purpose provided the pulp content is not too high.
Remoistening Gums: These adhesives are coated and dried on surfaces, such as postage stamps and envelope flags, for moistening by the user before application to another surface. Cassava dextrins in aqueous solution are well suited for this purpose as they give a high solids solution with clean machining properties.
Wallpaper And Other Home Uses: Various types of starch- based products are used as adhesives for wallpaper and other domestic uses.
Foundry: Starch is used as an adhesive for coating the sand grains and binding them together in making cores which are placed in moulds in the manufacture of castings for metals.
Well Drilling: Starches and modified starches mixed with clay are used to give the correct viscosity and water holding capacity in bores for the exploratory drilling of oil wells or water wells. These starch products are replacing the commercial products for making the muddy materials which are indispensable for drilling wells. For this purpose cold water. Soluble pregelatinized starch which can be made up to a paste of the required concentration on the spot is desired.
Paper Industry: In the paper and board industries, starch is used in large quantities. At three points during the process:
At the end of the wet treatment, when the basic cellulose fibre is beaten to the desired pulp in order to increase the strength of the finished paper and to import body and resistance to scuffing and folding.
At the size press when the paper sheet or boated has been formed and partially dried, starch (generally oxidized or modified) is usually added to one or both sides of the paper sheet or board to improve the finish, appearance, strength and printing properties.
In the coating operation when a pigment coating agent and as an adhesive.
Textile Industry: In the textile industry, starches occupy and important place in such operations as warp sizing is the application of a protective coating to prevent the single yarns from disintegrating during weaving.
The size consists of an adhesive and a lubricant and is generally remove after weaving. Cloth finishing alters the “feel” of the fabric by making it firmer, stiffer and hearier. Cassava starch is also used for cloth printing or producing certain designs in various colours on the smooth surface of a finished fabric.
Particle Board: Cassava stalks are used to make particle boards. Stalks are cut into small sections and mixed with certain resins to make particle boards.
Cassava As A Biofuel Crop: Brazil has already started producing bio-ethanol from cassava. Many African Countries are now becoming major producers of bio-ethanol production. Cassava mutants could be developed to produce value-added biomass for cost-effective production of bio-ethanol.
Dusting Powders: Starch can be made into finely powdered substances free of grittiness. This can be applied to the skin to reduce friction and moisture. By cross-linking starch with other agents, starch can be sterilized in autoclave and used as a surgical dusting powder.
Plastic And Packaging: Starch can be incorporated into plastics to improve the biodegradability of the plastic and finished product.
Stain Remover: This can be applied directly to fabrics as a dry powder or as a paste, allowed to dry and then brush off.
Detergents: Starch is an effective dirt redisposition inhibitor preventing the re-entry of dirt once it has been removed from the fabric.
Gypsum And Minerla Fibre: Starch is used as a binder in gypsum plaster, gypsum and mineral fibre board.
Concrete: Starch is often added to concrete to reduce the set-time in cement.
Coal: Starch is used as a binder in briquettes made from coal dust.
Nappy/Diaper: Starch is used as a superabsorbent gelling material capable of sequestering sometimes their weight of moisture.
