DE580447C - Process for the pretreatment of glue - Google Patents

Process for the pretreatment of glue

Info

Publication number
DE580447C
DE580447C DER84341D DER0084341D DE580447C DE 580447 C DE580447 C DE 580447C DE R84341 D DER84341 D DE R84341D DE R0084341 D DER0084341 D DE R0084341D DE 580447 C DE580447 C DE 580447C
Authority
DE
Germany
Prior art keywords
glue
pretreatment
parts
leather
liming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DER84341D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DER84341D priority Critical patent/DE580447C/en
Application granted granted Critical
Publication of DE580447C publication Critical patent/DE580447C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09HPREPARATION OF GLUE OR GELATINE
    • C09H1/00Pretreatment of collagen-containing raw materials for the manufacture of glue
    • C09H1/04Pretreatment of collagen-containing raw materials for the manufacture of glue of hides, hoofs, or leather scrap

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Verfahren zur Vorbehandlung von Leimgut Bekanntlich muß, Leimleder und ähnliches Material, bevor es auf Leim und Gelatine verkocht werden kann, einen bestimmten .Grad von Weichheit -aufweisen. Um dies zu erreichen, legt man das Material in alkalische Flüssigkeiten, insbesondere- z. B. in Kalkmilch.Process for the pretreatment of glue material It is well known that glue leather and similar material before it can be cooked on glue and gelatin one have a certain degree of softness. To do this, you lay the material in alkaline liquids, especially z. B. in milk of lime.

Bei hartem Material, wie vor allem bei Pickers und getrocknetem Leimleder, Brillen und ähnlichem Material, ist hierzu eine sehr lange Zeit, Wochen und Monate, erforderlich.With hard material, such as pickers and dried glue leather, Glasses and similar material, this takes a very long time, weeks and months, necessary.

Gefunden wurde ein Verfahren zur Vorbehandlung von Leimgut, wobei dieses mit Natriumsulfitlösung allein oder zusammen mit anderen zur Äscherung bekannten Mitteln, wie Alkali- oder Erdalkalihydroxyden bzw. -salzen, behandelt wird. Dadurch wird eine weitgehende Verkürzung der Äscherzeit erzielt. Bei Pickers z. B. genügen schoneinige Tage, je nach dem Material z bis 6 Tage, um das Material reif zum Verkochen zu machen. Dabei zeigt sich noch, daß. die reinigende Wirkung der. Sulfit-Kalkäscherbrühe erheblich besser ist als die reine Kalkäscherbrühe, so daß ein nicht unwesentlich helleres Endprodukt (Leim) erzielt wird. Beispiele t. ro Teile Pickers werden in eine Lösung, bestehend aus 5o Teilen Wasser und 0,5 Teilen Natriumsulfit gegeben und von Zeit zu Zeit bewegt. Nach wenigen Tagen ist das Material so gequollen, daß es durch Auswaschen mit Wasser neutral gestellt werden kann, um dann verkocht zu werden.A process has been found for the pretreatment of glue material, this being treated with sodium sulfite solution alone or together with other agents known for liming, such as alkali or alkaline earth hydroxides or salts. This considerably shortens the liming time. At Pickers z. For example, a few days, depending on the material, up to 6 days are sufficient to make the material ready for boiling. It also shows that. the cleansing effect of the. Sulphite lime ash broth is considerably better than the pure lime ash broth, so that a not insignificantly lighter end product (glue) is achieved. Examples t. Ro parts of Pickers are placed in a solution consisting of 50 parts of water and 0.5 part of sodium sulfite and stirred from time to time. After a few days the material is so swollen that it can be rendered neutral by washing it out with water and then boiling off.

a. ro Teile trockenes Leimleder werden in eine Brühe, bestehend aus 8o Teilen Wasser, 1,5 Calciumhydroxyd und 0,3 Natriumsulfit, unter zeitweiliger Bewegung behandelt. Je nach der Qualität des Leimleders (Hand-oder Maschinenware usw.) ist nach wenigen Tagen, manchmal schon -nach einem Tag, das Material kochreif.a. Ro parts of dry glue leather are treated in a broth consisting of 80 parts of water, 1.5 calcium hydroxide and 0.3 sodium sulfite, with occasional agitation. Depending on the quality of the glued leather (hand or machine goods, etc.), the material is ready to cook after a few days, sometimes even after a day.

Das beschriebene Verfahren kann bei gewöhnlicher oder etwas erhöhter Temperatur durchgeführt werden. .The procedure described can be at ordinary or slightly elevated Temperature. .

Claims (1)

PATENTANSPRUCH: Verfahren zur Vorbehandlung von Leimgut, dadurch gekennzeichnet, -daß dasselbe mit Natriumsulfitlösung allein oder zusammen mit anderen zur Äscherung bekannten Mitteln, -wie Alkali- oder Erdalkalihydroxyden bzw. -salzen behandelt wird.PATENT CLAIM: Process for the pretreatment of glue, characterized in that -the same with sodium sulphite solution alone or together with others for liming known agents, such as alkali or alkaline earth hydroxides or salts treated will.
DER84341D 1932-03-10 1932-03-10 Process for the pretreatment of glue Expired DE580447C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER84341D DE580447C (en) 1932-03-10 1932-03-10 Process for the pretreatment of glue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER84341D DE580447C (en) 1932-03-10 1932-03-10 Process for the pretreatment of glue

Publications (1)

Publication Number Publication Date
DE580447C true DE580447C (en) 1933-07-11

Family

ID=7417111

Family Applications (1)

Application Number Title Priority Date Filing Date
DER84341D Expired DE580447C (en) 1932-03-10 1932-03-10 Process for the pretreatment of glue

Country Status (1)

Country Link
DE (1) DE580447C (en)

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