US1778096A - Nontransparent and glossy capsule of regenerated cellulose and process of preparing same - Google Patents

Nontransparent and glossy capsule of regenerated cellulose and process of preparing same Download PDF

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Publication number
US1778096A
US1778096A US146560A US14656026A US1778096A US 1778096 A US1778096 A US 1778096A US 146560 A US146560 A US 146560A US 14656026 A US14656026 A US 14656026A US 1778096 A US1778096 A US 1778096A
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United States
Prior art keywords
capsule
glossy
regenerated cellulose
nontransparent
preparing same
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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 - Lifetime
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US146560A
Inventor
Voss Julius
Schnecko Otto
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.)
Kalle GmbH and Co KG
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Kalle GmbH and Co KG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0096—Producing closure members for containers, e.g. closure caps or stoppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers

Definitions

  • lVe have found that non-transparent and glossy capsules or caps are obtainable by causing an insoluble compound to be precipitated upon one side of a glossy capsule while taking care that the other side remains 10 unaltered. l/Ve prefer to carry out the process in such a way that we produce the insoluble precipitate on the capsule while it is still on the shaped patterns by Which it is formed. I
  • the viscose material applied on to the pattern is first dipped into a coagulating bath containing barium chloride and then through a bath containing a soluble sulfate, there is obtained a precipitate of barium sulfate which adheres only to the external surface of the capsules.
  • the capsules are then turned inside out and washed or treated in any desired or known manner.
  • Capsules thus formed will dry out with a glossy exterior surface, the non-transparent film formed by the precipitate being on the inside.
  • the above described processes may also be employed for the manufacture of capsules with a metallic lustre for which purpose hollow bodies, containing mica or mosaic gold (stannic sulphide) or a mixture of both, are to be used as starting material.
  • the capsules manufactured in this manner have over the capsules containing only mica or mosaic gold the advantage of possessing a higher covering power.
  • a viscose material composed of 5% of alkali, 6% of cellulose and 2% of mica.
  • the shaping-patterns are immersed into the mass and are then dipped, as above indicated, into a coagulation bath containing barium chloride and subsequently into a bath containing a soluble sulfate. Finally the cap is treated in the usual manner. In this way a cap is obtained the outward surface of which has a metallic lustre.
  • Non-transparent and glossy capsules of regenerated cellulose the inner side of said capsule being covered with an insoluble prepipitate and the outside showing a glossy surace.
  • a non-transparent and glossy capsule of regenerated cellulose the inner side 0 said capsule being covered with an insoluble precipitate of an inorganic compound and the outside showing a glossy surface.
  • a non-transparent and glossy capsule of regenerated cellulose the inner side of said capsule being covered with an insoluble precipitate of barium sulfate and the outside showing a glossy surface.

Description

V Patented Oct. 1 4, 1930 UNETED STATES PATENT OFFICE JULIUS VOSS AND OTTO SCHNECKO, OF BIEBRIC H-ON-RHINE, GERMANY, ASSIGNORS TO KALLE & CO. AKTIENGESELLSGHAFT, OF BIEBRIGH-ON-RHINE, GERMANY, A
CORPORATION OF GERMANY NONTRANSPARENT AND GLOSSY CAPSULE OF REGENERATED CELLULOSE AND PROCESS OF PREPARING SAME No Drawing. Application filed November 5, 1926, Serial No. 146,560, and in Germany November 6, 1925.
lVe have found that non-transparent and glossy capsules or caps are obtainable by causing an insoluble compound to be precipitated upon one side of a glossy capsule while taking care that the other side remains 10 unaltered. l/Ve prefer to carry out the process in such a way that we produce the insoluble precipitate on the capsule while it is still on the shaped patterns by Which it is formed. I
If, for instance, the viscose material applied on to the pattern is first dipped into a coagulating bath containing barium chloride and then through a bath containing a soluble sulfate, there is obtained a precipitate of barium sulfate which adheres only to the external surface of the capsules. The capsules are then turned inside out and washed or treated in any desired or known manner.
1 Capsules thus formed will dry out with a glossy exterior surface, the non-transparent film formed by the precipitate being on the inside.
In an analogous manner may be produced in the cap other precipitates, as for instance of copper sulfide, lead sulfate, barium chromate, copper or the like.
The above described processes may also be employed for the manufacture of capsules with a metallic lustre for which purpose hollow bodies, containing mica or mosaic gold (stannic sulphide) or a mixture of both, are to be used as starting material. The capsules manufactured in this manner have over the capsules containing only mica or mosaic gold the advantage of possessing a higher covering power.
For the purpose of our new process there may, for instance, be used a viscose material composed of 5% of alkali, 6% of cellulose and 2% of mica. The shaping-patterns are immersed into the mass and are then dipped, as above indicated, into a coagulation bath containing barium chloride and subsequently into a bath containing a soluble sulfate. Finally the cap is treated in the usual manner. In this way a cap is obtained the outward surface of which has a metallic lustre.
We claim:
1. Non-transparent and glossy capsules of regenerated cellulose, the inner side of said capsule being covered with an insoluble prepipitate and the outside showing a glossy surace.
2. A non-transparent and glossy capsule of regenerated cellulose, the inner side 0 said capsule being covered with an insoluble precipitate of an inorganic compound and the outside showing a glossy surface.
3. A non-transparent and glossy capsule of regenerated cellulose, the inner side of said capsule being covered with an insoluble precipitate of barium sulfate and the outside showing a glossy surface.
4. The process which comprises causing an insoluble compound to be precipitated upon one side of a capsule of regenerated cellulose while taking care that the other side remains unaltered.
5. The process which comprises treating a capsule made of regenerated cellulose while still being on the shaped pattern with a solution of barium chloride and then with a solution of a water soluble salt of sulfuric acid.
In testimony whereof we hereunto aflix our signatures.
DR. JULIUS VOSS. DR. OTTO SCHNECKO.
US146560A 1925-11-06 1926-11-05 Nontransparent and glossy capsule of regenerated cellulose and process of preparing same Expired - Lifetime US1778096A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1778096X 1925-11-06

Publications (1)

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US1778096A true US1778096A (en) 1930-10-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120277323A1 (en) * 2009-11-07 2012-11-01 University Of Iowa Research Foundation Cellulose capsules and methods for making them

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120277323A1 (en) * 2009-11-07 2012-11-01 University Of Iowa Research Foundation Cellulose capsules and methods for making them
US9050264B2 (en) * 2009-11-07 2015-06-09 University Of Iowa Research Foundation Cellulose capsules and methods for making them

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