IE780784L - Tea bags - Google Patents

Tea bags

Info

Publication number
IE780784L
IE780784L IE780784A IE78478A IE780784L IE 780784 L IE780784 L IE 780784L IE 780784 A IE780784 A IE 780784A IE 78478 A IE78478 A IE 78478A IE 780784 L IE780784 L IE 780784L
Authority
IE
Ireland
Prior art keywords
acid
acidic
tea bags
sheet material
impregnated
Prior art date
Application number
IE780784A
Other versions
IE46798B1 (en
Original Assignee
Unilever Ltd
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 Unilever Ltd filed Critical Unilever Ltd
Publication of IE780784L publication Critical patent/IE780784L/en
Publication of IE46798B1 publication Critical patent/IE46798B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • D21H17/15—Polycarboxylic acids, e.g. maleic acid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tea And Coffee (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Paper (AREA)

Abstract

The novel tea bag is composed of sheet materials impregnated with acidic substances. The acidic substance is citric acid, malic acid, glutaric acid, tartaric acid, succinic acid, potassium dihydrogen phosphate and/or monosodium hydrogen sulphate and is present in an amount of 0.03 to 0.5 mg/cm<2>. The sheet material is generally paper. On contact with water, an acidic reaction is caused therein. The colour of aqueous infusions, which are produced with these tea bags, is considerably better than with the previous tea bags. The sheet material can be impregnated by dipping conventional tea bag paper into an aqueous solution of the acidic substance or spraying it with this and then drying it. [GB1603414A]
IE784/78A 1977-04-22 1978-04-21 Tea bags IE46798B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16824/77A GB1603414A (en) 1977-04-22 1977-04-22 Tea bags

Publications (2)

Publication Number Publication Date
IE780784L true IE780784L (en) 1978-10-22
IE46798B1 IE46798B1 (en) 1983-09-21

Family

ID=10084356

Family Applications (1)

Application Number Title Priority Date Filing Date
IE784/78A IE46798B1 (en) 1977-04-22 1978-04-21 Tea bags

Country Status (18)

Country Link
JP (1) JPS541190A (en)
AT (1) AT366120B (en)
AU (1) AU515207B2 (en)
BE (1) BE866274A (en)
BR (1) BR7802476A (en)
CA (1) CA1114248A (en)
CH (1) CH627708A5 (en)
DE (1) DE2816829A1 (en)
FI (1) FI781176A (en)
FR (1) FR2387860A1 (en)
GB (1) GB1603414A (en)
IE (1) IE46798B1 (en)
IN (1) IN148240B (en)
IT (1) IT1111463B (en)
NL (1) NL7804257A (en)
NO (1) NO148549C (en)
SE (1) SE7804611L (en)
ZA (1) ZA782290B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO177624C (en) * 1989-10-31 1995-10-25 Philip Morris Prod Paper cover for a smoking article and its use
ATE437572T1 (en) * 2005-02-01 2009-08-15 Koerber Helmut METHOD FOR PREPARING TEA DRINKS FROM BLACK OR GREEN TEA
JP5836692B2 (en) * 2011-08-09 2015-12-24 守康 村田 Tea bag
CA2890226C (en) 2013-01-31 2020-11-10 Glatfelter Gernsbach Gmbh & Co. Kg Crosslinking/functionalization system for a paper or non-woven web
DE102013227044B4 (en) 2013-12-20 2018-03-22 Martin Bauer Gmbh & Co. Kg Brewing capsule for producing a tea beverage in capsule brewing machines and filling for such a brewing capsule
EP3496548B2 (en) 2016-08-15 2023-06-28 Unilever PLC A process for manufacturing a leaf tea product

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006764A (en) * 1959-02-17 1961-10-31 Duncan Coffee Company Tea bag
DE2332227A1 (en) * 1972-06-29 1974-01-10 Unilever Nv TEABAG
US3914439A (en) * 1974-08-16 1975-10-21 Shepard Chemical Ind Inc Dry particulate flavor composition, method of making same and use thereof

Also Published As

Publication number Publication date
ZA782290B (en) 1979-11-28
IE46798B1 (en) 1983-09-21
NO148549B (en) 1983-07-25
CA1114248A (en) 1981-12-15
IT1111463B (en) 1986-01-13
FR2387860A1 (en) 1978-11-17
JPS541190A (en) 1979-01-06
AT366120B (en) 1982-03-10
ATA291878A (en) 1981-07-15
AU3518378A (en) 1979-10-25
IN148240B (en) 1980-12-13
CH627708A5 (en) 1982-01-29
FI781176A (en) 1978-10-23
GB1603414A (en) 1981-11-25
BR7802476A (en) 1978-12-12
SE7804611L (en) 1978-10-23
FR2387860B1 (en) 1983-05-27
NL7804257A (en) 1978-10-24
BE866274A (en) 1978-10-23
NO148549C (en) 1983-11-02
NO781394L (en) 1978-10-24
IT7867917A0 (en) 1978-04-21
AU515207B2 (en) 1981-03-19
DE2816829A1 (en) 1978-10-26

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