Adhesive composition for gluding paper and fabric

FIELD: chemistry.

SUBSTANCE: adhesive contains a basic component in form of brewer's or distiller's yeast which is a waste from the brewing or distillation industry. The residue of brewer's or distiller's yeast is treated with 2% sodium hydroxide solution in ratio of 1:1. The adhesive composition contains the treated residue of brewer's yeast, glycerin and boric acid. Components of the composition are in the following ratio, pts. wt: residue of brewer's or distiller's yeast treated with 2% sodium hydroxide solution in ratio of 1:1 96.0-98.0; glycerin 1.9-3.7; boric acid 0.1-0.3.

EFFECT: adhesive composition has high adhesive capacity and low cost.

2 tbl

 

The invention relates to the field of adhesives used in paper and woodworking industries.

Known dekstrinovym adhesive containing as a main component, a low molecular weight fraction in the form of dextran and sucrose lucerno water, glycerin, boric acid (RU # 2132348, IPC6C09J 105/02, publ. 27.06.1999 year).

The disadvantage of the composition of the adhesive is its relatively low tack and high cost, as its production is used for food raw material is sucrose.

The technical result is to reduce the cost of preparation of the adhesive composition and increase its adhesive ability.

The invention consists in that the adhesive composition for bonding paper and tissue, including the main ingredient, glycerin and boric acid as a main component contains a residue of beer or alcohol yeast, which is a waste of beer or alcohol industry, treated with 2%solution of sodium hydroxide in the ratio of 1:1, in the following ratio, wt.%:

Sediment beer or alcohol yeast,
processed 2%solution of hydroxide
sodium in the ratio of 1:1- 96,0-98,0
Glycerin- 1,9-3,7
Boric acid- 0,1-0,3

The precipitate yeast - precipitate obtained after centrifugation of the residual yeast. In the production of beer dense waste are yeast cells (0,25-0,40 kg per 1 l of beer, malt and hop pellet, the protein precipitate from the separators. Residual yeast represent dense mass with a specific yeast flavor with a slight hop bitterness and odor characteristic of fresh yeast. Mass fraction of dry substances in the residual brewer's yeast to 15 wt.%. Yeast contains 24-30% of dry matter, which 90-95% are composed of organic substances. Proteins and other nitrogen-containing substances in the yeast contains 54-56%, carbohydrates - 24-40%, fat is 2-5%. The most well-known yeast proteins are samaratain (postglobal) and therewithin.

The precipitate alcohol yeast - precipitate obtained after centrifugation bards, which is one of the main waste alcohol production and its output is 0.12 m31 gave the produced alcohol. The chemical composition of the bards depends on the type and quality of raw materials and adopted technologies of alcohol.

Zernotorgovelna the Arda contains yeast, organic and mineral substances. It contains 6-8% of dry substance. Solids it is composed (%): sugar - 0,25-0,5; glycerol - 0,4-0,6; starch - 0,1-0,2; hemicellulose - 1,4-2,3; cellulose - 0,3-0,9; proteins; amino acids; organic acids and mineral compounds. In molasses vinasse go 50-55% solids molasses, yeast and many products of their activity. Molasses stillage contains 7.5 to 10% of dry substances, including about 3% of inorganic compounds. Solids are (%): organic compounds - 70-80, protein - 17-27, glycerin - 6-13, reducing agents - 3-7, proteins, amino acids, organic acids and mineral compounds.

Example. First residue of beer or alcohol yeast treated with 2%solution of sodium hydroxide in the ratio of 1:1. When the preparation of the adhesive composition components were taken in the following proportions (see table 1). These components are mixed continuously for 2-4 hours. Testing of these compounds gave the following results (see table 2).

Table 1
ComponentsContent, wt.%
123Prototype/td>
Sediment beer or alcohol yeast treated with 2%solution of sodium hydroxide98,097,096,0
Glycerin1,92,83,72,0-3,0
Boric acid0,10,20,30,1-0,2
Sucrose---0,2-1,6
Dextran---25,0-30,0
Lucerna water---10,0-15,0
Water, M.Ch.---rest

Table 2
Characteristic gluestructures
123The placeholder
Tack on a notional strip, kg3.403.403,601.50

Compared with the known solutions proposed composition, the adhesive composition can reduce its cost by 30-40% due to the use of waste brewing or distilling industry - yeast sediment. While gluing ability to "conditional strip" increases 1.5-2 times, and it can be used for gluing paper, fabrics, manufacturing of paper tape on the adhesive base.

Adhesive composition for bonding paper and tissue, including the main ingredient, glycerin and boric acid, characterized in that as a main component contains a residue of beer or alcohol yeast, which is a waste of beer or alcohol industry and treated with 2%sodium hydroxide solution at a ratio of 1:1, in the following ratio, wt.%:

Sediment beer or alcohol yeast
processed 2%solution of hydroxide
sodium in the ratio of 1:1- 96,0-98,0
Glycerin- 1,9-3,7
Boric acid- 0,1-0,3



 

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