Classifications

• • A—HUMAN NECESSITIES
  • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
  • A22C—PROCESSING MEAT, POULTRY, OR FISH
  • A22C13/00—Sausage casings
  • A22C13/0013—Chemical composition of synthetic sausage casings
  • A22C13/0016—Chemical composition of synthetic sausage casings based on proteins, e.g. collagen
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
  • C09B67/0001—Post-treatment of organic pigments or dyes
  • C09B67/0004—Coated particulate pigments or dyes
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
  • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
  • C09B67/0084—Dispersions of dyes

Definitions

• the present invention relates to a pigment/dyestuff composition for colouring of collagen-containing sausage casings, as well as the use thereof.
• Collagen sausage casings are commonly used since they have certain advantages over natural sausage casings. One of the advantages is that they can be supplied in desired lengths and with a homogeneous cross-section and the desired strength. For a collagen sausage casing to have a uniform and attractive appearance as well, the collagen mass is usually coloured during the manufacture of the sausage casings.
• Collagen sausage casings are manufactured by extrusion of an acid collagen mass, usually obtained from skin splitting, to a continuous tube, which is hardened and, optionally, dried before filling.
• the colouring of collagen sausage casings is effected by adding pigments or dyestuffs to the collagen mass before extrusion. Since collagen in its acidified state is sensitive to the effect of pigments or dyestuffs, inorganic as well as organic, first the pigment must be dispersed or the dyestuff must be dissolved to a very weak dispersion/solution, usually with a content of pigment and dyestuff, respectively, of 0.5-1% by weight, before the dispersion/solution is slowly added during mixing (homogenisation) of the collagen mass. If the addition takes place too quickly, the collagen unswells or is denaturated, islands of the denaturated collagen and pigment or dyestuff forming in the mass. These islands deteriorate both the extruding properties of the mass and its appearance, which results in a spotted and patchy sausage casing. It is not possible to mix these islands with the mass.
• a pigment/dyestuff composition is provided, which in the colouring of collagen sausage casings solves the above-mentioned problems .
• the invention relates to a pigment/dyestuff composition for colouring of collagen-containing sausage casings, which comprises 2-10% by weight of pigment/dye- stuff, 3-30% by weight of polyoxyethylene sorbitan fatty acid ester, 1-10% by weight of sorbitan fatty acid ester, 0-70% by weight of dispersing agent, the balance being water and, optionally, other conventional additives.
• the invention also relates to the use of such a com- position for colouring of collagen-containing sausage casings .
• polyoxyethylene sorbitan fatty acid ester (so-called polysorbate) and sorbitan fatty acid ester forms with the pigment/dyestuff a stable dis- persion and "encapsulates" the pigment/dyestuff particles, such that they do not come into direct contact with the collagen during mixing with the collagen mass.
• the dispersion of the pigment/dyestuff is improved by using a thicker dispersion.
• glycerine can therefore be added as dispersing agent (thickening agent) .
• the pigment/dyestuff composition By using the pigment/dyestuff composition accord- ing to the invention, the pigment/dyestuff can be added quickly and in concentrated form without causing the problems of unswelling/formation of islands.
• a further advantage of the pigment/dyestuff composition according to the invention is that it is viscous and stable in terms of settling.
• the combination of polysor- bate/sorbitan fatty acid ester results in a more intensive colour with the corresponding amount of pigment/dye- stuff, which implies that the amount of pigment/dyestuff can be reduced to a considerable extent, viz. by about 25%.
• the use of the pigment/dyestuff composition gives additional positive effects in the form of a more ductile collagen mass with better extruding properties.
• the polyoxyethylene sorbitan fatty acid ester is suitably selected from the group consisting of polyoxyethylene (20) sorbitan monolaurate, monopalmitate, mono- stearate, tristearate, monooleate, trioleate.
• the used sorbitan fatty acid ester is suitably selected from the group consisting of sorbitan monolaurate, monopalmitate, monostearate, tristearate, monooleate, trioleate.
• Polysorbate 80 polyoxyethylene (20) sorbitan monooleate
• Polysorbate 40 polyoxyethylene (20) sorbitan monopalmitate

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Dispersion Chemistry (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Food Science & Technology (AREA)
• Meat, Egg Or Seafood Products (AREA)
• Investigating Or Analysing Biological Materials (AREA)
• Coloring Foods And Improving Nutritive Qualities (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20406965

Family Applications (1)

Country Status (3)

Cited By (3)

Citations (2)

• 1997
  • 1997-05-16 SE SE9701828A patent/SE508907C2/sv not_active IP Right Cessation
• 1998
  • 1998-05-14 AU AU75598/98A patent/AU7559898A/en not_active Abandoned
  • 1998-05-14 WO PCT/SE1998/000885 patent/WO1998051160A1/en active Application Filing

Patent Citations (2)

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