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WO1995010567A1 - Procede d'extraction de colorants naturels au moyen de bentonite - Google Patents

Procede d'extraction de colorants naturels au moyen de bentonite Download PDF

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Publication number
WO1995010567A1
WO1995010567A1 PCT/IT1993/000121 IT9300121W WO9510567A1 WO 1995010567 A1 WO1995010567 A1 WO 1995010567A1 IT 9300121 W IT9300121 W IT 9300121W WO 9510567 A1 WO9510567 A1 WO 9510567A1
Authority
WO
WIPO (PCT)
Prior art keywords
bentonite
plant
mixture
ultrasonic treatment
kilo
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.)
Ceased
Application number
PCT/IT1993/000121
Other languages
English (en)
Inventor
Neria De Giovanni
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 AU55958/94A priority Critical patent/AU5595894A/en
Publication of WO1995010567A1 publication Critical patent/WO1995010567A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C09B67/0096—Purification; Precipitation; Filtration
    • 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
    • C09B61/00—Dyes of natural origin prepared from natural sources, e.g. vegetable sources

Definitions

  • the invention concerns a process for extracting colours from plants .
  • There are well-known methods such as boiling, infusing whole plants or parts of them to obtain solutions that can be used to dye fibres.
  • Powders are also sold -on the market for preparing dye baths and extracts. Extracts are the most advantageous form being easy to store and use .
  • Extracts maintain organoleptic and dyeing characteris ⁇ tics intact and a sample obtained can be repeated a great many times . Extracts produce stronger and more brilliant colours as they are separated from secondary dyes.
  • Bentonite is known to be a natural mixture essentially comprising clay minerals such as marillonite and beidel- lite able to absorb large quantities of water and pro ⁇ ducing stable suspensions.
  • Subject of the invention is a process for continuous extraction of natural colours after a stage of homogeni ⁇ zing and ultrasonic treatment employing bentonites for separation of the stages containing riboflavonoids .
  • the process is substantially carried out according to the following stages:
  • the invention possesses evident advantages. An extract is obtained which, compared with-t-he- plant or with the powder, can be reproduced and is non-toxic. Use is made of raw materials that, both as regards the plants and the clays required, are amply available for an international market.
  • Fig. I Layout of a typical production system.
  • the plant from which an extract is required is homogen- ized by placing it in the mill 11 of the installation ' 10.
  • H O is added in the proportion of A litres of H 0 per kilo of plant .
  • the pH of the solution is 'brought to 8.1.
  • the homogenized material passes into- an apparatus for ultrasonic treatment 12 where it remains for about 5 minutes and where the cellular membranes are broken up to assist outflow of riboflavonoids .
  • the pump 14 transfers the solution to the mixer 13 where it is mixed with bento- nite in the proportion of 1 kg. of plant material to 1 kg. of bentonite, this being done by strong shaking for about twenty minutes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Cosmetics (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Procédé d'extraction de colorants de végétaux consistant à mélanger ces derniers à de la bentonite après les avoir au préalable homogénéisés par broyage et soumis à un traitement par ultrasons favorisant l'expression des riboflavinoïdes.
PCT/IT1993/000121 1993-10-13 1993-11-22 Procede d'extraction de colorants naturels au moyen de bentonite Ceased WO1995010567A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU55958/94A AU5595894A (en) 1993-10-13 1993-11-22 Process for extraction of natural colours by means of bentonite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI93A002171 1993-10-13
ITMI932171A IT1270903B (it) 1993-10-13 1993-10-13 Procedimento per l'estrazione di colori naturali mediante bentonite

Publications (1)

Publication Number Publication Date
WO1995010567A1 true WO1995010567A1 (fr) 1995-04-20

Family

ID=11367021

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1993/000121 Ceased WO1995010567A1 (fr) 1993-10-13 1993-11-22 Procede d'extraction de colorants naturels au moyen de bentonite

Country Status (3)

Country Link
AU (1) AU5595894A (fr)
IT (1) IT1270903B (fr)
WO (1) WO1995010567A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2644178C1 (ru) * 2016-11-24 2018-02-08 Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") Способ получения пигментов для натуральных красок

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045458A (fr) * 1973-08-28 1975-04-23
JPS5316039A (en) * 1976-07-29 1978-02-14 Shiseido Co Ltd Preparation of fabricated pigment powder containing color-developed carthamine
DE3310340A1 (de) * 1982-03-31 1983-10-06 Gen Foods Corp Verfahren zur herstellung eines anthocyanin-farbstoffs aus traubentreber
JPS62151467A (ja) * 1985-12-26 1987-07-06 Soda Koryo Kk 安定なラツク色素の製造方法
JPH01311174A (ja) * 1988-06-08 1989-12-15 Toyotama Koryo Kk クチナシ黄色色素の精製法
JPH0459875A (ja) * 1990-06-29 1992-02-26 Takeda Chem Ind Ltd 天然色素の着色組成物
WO1992018471A1 (fr) * 1991-04-12 1992-10-29 Humanetics Corporation Extraction de carotenoides a partir de sources naturelles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045458A (fr) * 1973-08-28 1975-04-23
JPS5316039A (en) * 1976-07-29 1978-02-14 Shiseido Co Ltd Preparation of fabricated pigment powder containing color-developed carthamine
DE3310340A1 (de) * 1982-03-31 1983-10-06 Gen Foods Corp Verfahren zur herstellung eines anthocyanin-farbstoffs aus traubentreber
JPS62151467A (ja) * 1985-12-26 1987-07-06 Soda Koryo Kk 安定なラツク色素の製造方法
JPH01311174A (ja) * 1988-06-08 1989-12-15 Toyotama Koryo Kk クチナシ黄色色素の精製法
JPH0459875A (ja) * 1990-06-29 1992-02-26 Takeda Chem Ind Ltd 天然色素の着色組成物
WO1992018471A1 (fr) * 1991-04-12 1992-10-29 Humanetics Corporation Extraction de carotenoides a partir de sources naturelles

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 7601, Derwent World Patents Index; AN 76-00738X[01], "waste dye water purification - montmorrillonite clay, multivalent metal compound added" *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 381 (C - 464)<2828> 12 December 1987 (1987-12-12) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 106 (C - 694)<4049> 27 February 1990 (1990-02-27) *
PATENT ABSTRACTS OF JAPAN vol. 16, no. 261 (C - 950)<5304> 12 June 1992 (1992-06-12) *
PATENT ABSTRACTS OF JAPAN vol. 2, no. 59 (C - 398)<78> 27 April 1978 (1978-04-27) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2644178C1 (ru) * 2016-11-24 2018-02-08 Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") Способ получения пигментов для натуральных красок

Also Published As

Publication number Publication date
IT1270903B (it) 1997-05-13
ITMI932171A0 (it) 1993-10-13
AU5595894A (en) 1995-05-04
ITMI932171A1 (it) 1995-04-13

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