NO148549B - TEPOSE MADE OF WATERPROOFABLE SHEET MATERIAL - Google Patents
TEPOSE MADE OF WATERPROOFABLE SHEET MATERIAL Download PDFInfo
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- NO148549B NO148549B NO781394A NO781394A NO148549B NO 148549 B NO148549 B NO 148549B NO 781394 A NO781394 A NO 781394A NO 781394 A NO781394 A NO 781394A NO 148549 B NO148549 B NO 148549B
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- Prior art keywords
- tea
- acid
- water
- impregnated
- acidic
- Prior art date
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- 239000000463 material Substances 0.000 title claims description 61
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 65
- 230000002378 acidificating effect Effects 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000002253 acid Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 9
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 6
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 6
- 239000001630 malic acid Substances 0.000 claims description 6
- 235000011090 malic acid Nutrition 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 5
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 4
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 4
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 4
- CIOXZGOUEYHNBF-UHFFFAOYSA-N (carboxymethoxy)succinic acid Chemical compound OC(=O)COC(C(O)=O)CC(O)=O CIOXZGOUEYHNBF-UHFFFAOYSA-N 0.000 claims description 3
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 3
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 2
- 241001122767 Theaceae Species 0.000 claims 6
- 235000013616 tea Nutrition 0.000 description 70
- 244000269722 Thea sinensis Species 0.000 description 67
- 239000006172 buffering agent Substances 0.000 description 5
- 239000000284 extract Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- -1 hydrogen ions Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Chemical compound CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical compound NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000006468 Thea sinensis Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 239000006286 aqueous extract Substances 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 235000020279 black tea Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- WPUMTJGUQUYPIV-JIZZDEOASA-L disodium (S)-malate Chemical compound [Na+].[Na+].[O-]C(=O)[C@@H](O)CC([O-])=O WPUMTJGUQUYPIV-JIZZDEOASA-L 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 235000020344 instant tea Nutrition 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 235000019265 sodium DL-malate Nutrition 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- 239000001394 sodium malate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 229940038773 trisodium citrate Drugs 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Description
Foreliggende oppfinnelse gjelder teposer laget av vanngjennomtrengelig materiale. The present invention relates to tea bags made of water-permeable material.
En betydelig mengde te selges i teposer. Teposer inneholder vanligvis blad-te i mengder av ca. 2-3 gram pr. pose, og sort blad-te er mest vanlig brukt. Noen ganger blandes blad-teen med mindre mengder raskt løselig te (instant-te). A significant amount of tea is sold in tea bags. Tea bags usually contain leaf tea in quantities of approx. 2-3 grams per bag, and black leaf tea is most commonly used. Sometimes the leaf tea is mixed with smaller amounts of fast-dissolving tea (instant tea).
Drikkekvalitéten av både blad-te og raskt løselig te be-stemmes delvis av vannet som den trekkes i under fremstillingen av drikken. Te som lages med vann av høy temporær hårdhet har ofte en uønsket gråbrun farve. I tillegg har te fra forskjellige geografiske kilder og vekstbetingelser forskjellige egenskaper, The drinking quality of both loose-leaf tea and fast-dissolving tea is partly determined by the water in which it is steeped during the preparation of the drink. Tea made with water of high temporary hardness often has an undesirable grey-brown colour. In addition, tea from different geographical sources and growing conditions have different properties,
og som resultat av dette gir noen kommersielle teblandinger te-' brygg med dårlig farve. and as a result some commercial tea blends produce tea brews with poor color.
Det er kjent at citronsyre forbedrer farven på teen som oppnås ved tillagingen. Det er også foreslått å blande inn et pufringsmiddel, som for eksempel citronsyre og askorbinsyre og deres salter, i teposen sammen med bladteen for å forbedre farven av det resulterende uttrekk. Fordi mengden av slike pufringsmidler normalt nødvendigvis er liten, byr doseringen av slike små mengder av ingredienser på betydelige praktiske problemer. Selv om det i prinsippet er mulig å dosere pufringsmidlet, vanligvis et pulver, Citric acid is known to improve the color of the tea obtained during preparation. It is also suggested to mix a buffering agent, such as citric acid and ascorbic acid and their salts, into the tea bag along with the leaf tea to improve the color of the resulting extract. Because the amount of such buffering agents is normally necessarily small, the dosing of such small amounts of ingredients presents significant practical problems. Although in principle it is possible to dose the buffering agent, usually a powder,
i posen under fylleoperasjonen, er denne metode ikke attraktiv for bruk i praksis siden den krever meget nøyaktige doseringssystemer og en forandring av standardmaskinene for fylling av teposer. in the bag during the filling operation, this method is not attractive for use in practice since it requires very precise dosing systems and a change to the standard machines for filling tea bags.
Et alternativ er å blande syren eller pufringsmidlet inn An alternative is to mix in the acid or buffering agent
i teblad-beholdningen før fyllingen, men det er meget vanskelig å oppnå en homogen fordeling av det pulverformige pufringsmiddel i den store teblad-mengden på grunn av forskjeller i densitet, form og partikkelstørrelse. Som resultat av dette vil teposene oppvise betydelige variasjoner i innhold av additiver, varierende fra intet til et alt for stort innhold. in the tea leaf stock before filling, but it is very difficult to achieve a homogeneous distribution of the powdered buffering agent in the large amount of tea leaves due to differences in density, shape and particle size. As a result of this, the tea bags will show significant variations in the content of additives, varying from nothing to an excessively high content.
Formålet med oppfinnelsen er å tilveiebringe teposer fra hvilke det kan oppnås uttrekk med forbedret farve og som ikke er The purpose of the invention is to provide tea bags from which extracts with improved color can be obtained and which are not
utsatt for de ovennevnte ulemper. exposed to the above disadvantages.
Ved hjelp av oppfinnelsen er det nå funnet at det oppnås forbedret farve på teen dersom teposen er laget av et vanngjennomtrengelig arkmateriale som er impregnert med et surt materiale. Det vanngjennomtrengelige arkmaterialet får da sur reaksjon ved kontakt med vann, dvs. det frigjøres hydrogen-ioner til løsningen. Fortrinnsvis er det sure materiale spiselig, og vannet som brukes for trekking av tebladene frigjør det sure materiale fra det vanngjennomtrengelige arkmateriale til løsningen, noe som fører til den ønskede farveforbedring. Ved det at det vanngjennomtrengelige arkmateriale er impregnert med det sure materiale før teposen fremstilles, reduseres de ovenfor beskrevne doseringsproblemer og oppnås meget bedre kontroll med innholdet av surt materiale pr. pose. With the help of the invention, it has now been found that an improved color of the tea is achieved if the tea bag is made of a water-permeable sheet material which is impregnated with an acidic material. The water-permeable sheet material then undergoes an acidic reaction on contact with water, i.e. hydrogen ions are released into the solution. Preferably, the acidic material is edible and the water used for steeping the tea leaves releases the acidic material from the water permeable sheet material into the solution, leading to the desired color enhancement. By the fact that the water-permeable sheet material is impregnated with the acidic material before the tea bag is produced, the dosing problems described above are reduced and much better control is achieved with the content of acidic material per bag.
Oppfinnelsen tilveiebringer derfor en tepose laget av vanngjennomtrengelig materiale som er impregnert med et surt materiale som kan frigjøres fra det vanngjennomtrengelige arkmateriale ved neddykking i vann. Det karakteristiske ved teposen er at arkmaterialet er impregnert med det sure materiale i en mengde av 0,03-0,5 mg/cm 2, videre at den omfatter 2-25 mg impregnert surt materiale pr. gram teblader, og at det sure materiale er utvalgt blant følgende materialer: citronsyre, eplesyre, glutarsyre, vinsyre, ravsyre, karboksymetyloksyravsyre, mononatriumhydrogensulfat, kaliumdihydrogenfosfat, og pufrende blandinger av hvilke som helst av disse sure materialer med vannløselige salter av de samme sure materialer. The invention therefore provides a tea bag made of water permeable material which is impregnated with an acidic material which can be released from the water permeable sheet material by immersion in water. The characteristic feature of the tea bag is that the sheet material is impregnated with the acidic material in an amount of 0.03-0.5 mg/cm 2 , further that it comprises 2-25 mg of impregnated acidic material per grams of tea leaves, and that the acidic material is selected from the following materials: citric acid, malic acid, glutaric acid, tartaric acid, succinic acid, carboxymethyloxysuccinic acid, monosodium hydrogen sulfate, potassium dihydrogen phosphate, and buffering mixtures of any of these acidic materials with water-soluble salts of the same acidic materials.
Det spiselige, sure materiale er fortrinnsvis vannløselig og har en fast krystallstruktur i tørr tilstand. Det sure materiale kan være en fri syre. Istedenfor én syre kan det anvendes blandinger av to el'ler flere. Uten å fravike fra oppfinnelsesidéen kan det like godt anvendes en pufringsblan-ding omfattende en syre og dens salt, og uttrykket "surt materiale" skal forstås slik at det omfatter en slik kombina-sjon. De spiselige syrer som kan anvendes, velges blant citronsyre, eplesyre, glutarsyre, vinsyre, ravsyre og karboksymetyloksyravsyre. Mononatriumhydrogensulfat (NaHSO^) og kaliumdihydrogenfosfat er andre eksempler på sure materialer. The edible, acidic material is preferably water-soluble and has a solid crystal structure in the dry state. The acidic material may be a free acid. Instead of one acid, mixtures of two or more can be used. Without deviating from the idea of the invention, a buffering mixture comprising an acid and its salt can just as well be used, and the term "acidic material" should be understood to include such a combination. The edible acids that can be used are chosen from citric acid, malic acid, glutaric acid, tartaric acid, succinic acid and carboxymethyloxysuccinic acid. Monosodium hydrogen sulfate (NaHSO^) and potassium dihydrogen phosphate are other examples of acidic materials.
Arkmaterialet som teposen lages av, er fortrinnsvis papir, og det sure materiale som anvendes for impregnering er fortrinnsvis citronsyre eller eplesyre. Fordelene ved oppfinn-eisen kan oppnås på enkel måte ved å anvende citronsyre som det eneste sure materiale. The sheet material from which the tea bag is made is preferably paper, and the acidic material used for impregnation is preferably citric or malic acid. The benefits of the inventive ice can be achieved in a simple way by using citric acid as the only acidic material.
En foretrukken utførelsesform av oppfinnelsen gjelder en tepose laget av vanngjennomtrengelig arkmateriale som er impregnert med et surt materiale som kan frigjøres fra dette ved neddykking i vann, idet teposen inneholder 2-3 g teblader, og det karakteristiske ved teposen er at det sure materiale er citronsyre impregnert i en mengde av 0,05-0,3 mg/cm 2 og at teposen inneholder 5-20 mg impregnert citronsyre pr. gram teblader. A preferred embodiment of the invention concerns a tea bag made of water-permeable sheet material which is impregnated with an acidic material which can be released from it by immersion in water, the tea bag containing 2-3 g of tea leaves, and the characteristic feature of the tea bag is that the acidic material is citric acid impregnated in an amount of 0.05-0.3 mg/cm 2 and that the tea bag contains 5-20 mg of impregnated citric acid per grams of tea leaves.
Eksempler på egnede puffere for anvendelse ved impregnering av arkmaterialet er kombinasjoner av en spiselig syre med et vannløselig salt av samme syre. Alkalimetallsalter er foretrukket. Spesielle eksempler på egnede puffere er citronsyre/ trinatriumcitrat, eplesyre/natriummalat og kalium-dihydro-genfosfat/dikalium-hydrogenfosfat. Examples of suitable buffers for use when impregnating the sheet material are combinations of an edible acid with a water-soluble salt of the same acid. Alkali metal salts are preferred. Special examples of suitable buffers are citric acid/trisodium citrate, malic acid/sodium malate and potassium dihydrogen phosphate/dipotassium hydrogen phosphate.
Farven på teen avhenger av den temporære hårdheten i vannet som anvendes for fremstilling av uttrekket, og jo mer alkalisk vannet er, jo mer surt materiale behøves for å gi lys nok farve på teen, og mindre mengder surt materiale trenges i bløtere vann. De områder som er angitt ovenfor er imidlertid helt adekvate med hensyn til å dekke et stort område av vann-alkalitet, uten på skadelig måte å påvirke de andre kvalitet-ene i teen som skal drikkes. The color of the tea depends on the temporary hardness of the water used to make the extract, and the more alkaline the water, the more acidic material is needed to give the tea a light enough color, and smaller amounts of acidic material are needed in softer water. However, the ranges indicated above are quite adequate to cover a large range of water alkalinity, without adversely affecting the other qualities of the tea to be drunk.
Det vanngjennomtrengelige arkmateriale kan være et hvilket som helst av de materialer som er i bruk, eller foreslått brukt, ved fremstilling av teposer. Det vanligste materiale er papir, men vevede stoffer og syntetiske nett laget av eksempel-vis polypropylen kan brukes. De fysikalske egenskaper, som f.eks. porøsitet og styrke i våt og tørr tilstand, som kreves i et arkmateriale som det lages teposer av er velkjent på området og utgjør ingen del av oppfinnelsen. The water-permeable sheet material can be any of the materials in use, or proposed to be used, in the manufacture of tea bags. The most common material is paper, but woven fabrics and synthetic nets made from, for example, polypropylene can be used. The physical properties, such as porosity and strength in wet and dry conditions, which are required in a sheet material from which tea bags are made, are well known in the field and form no part of the invention.
Av hensiktsmessighetsgrunner skal oppfinnelsen beskrives ytterligere i forbindelse med teposer laget av papir som er impregnert med vannløselige, spiselige sure materialer. For reasons of expediency, the invention shall be further described in connection with tea bags made of paper which are impregnated with water-soluble, edible acidic materials.
Forskjellige teknikker for innblanding av et middel i papir er kjent på området, og enhver egnet teknikk kan anvendes. Det spiselige materiale kan impregneres i papiret ved at det tilsettes under et vått trinn i den ellers konvensjonelle fremgangsmåte ifølge hvilken kommersielle teposer lages, dvs. ved innblanding i massen før eller under fremstillingen av papiret. Et hensiktsmessig apparat, kjent for anvendelse ved fremstilling av impregnert papir generelt, er limpressen. Al-ternativt kan kommersielle teposer dyppes i eller påsprøytes en vandig løsning av spiselige sure materialer og deretter tørkes. Der hvor det spiselige, sure materiale impregneres i kommersielle teposer, er det mulig at det vil oppstå krymping av papiret. Det foretrekkes således at papiret impregneres med det sure, spiselige materiale før det deles opp i størr-else som er egnet for fremstilling av teposer. Den vandige løsning av det spiselige, sure materiale som kommersielt teposepapir dyppes i, inneholder fortrinnsvis fra 1 til 10 vekt% av det sure materiale. Når det impregnerte papiret lages ved å påsprøyte en vandig løsning på kommersielt teposepapir, inneholder løsningen fortrinnsvis fra 5 til 60 vekt% av det sure materiale. Various techniques for mixing an agent into paper are known in the art, and any suitable technique can be used. The edible material can be impregnated in the paper by adding it during a wet step in the otherwise conventional method according to which commercial tea bags are made, i.e. by mixing it into the pulp before or during the production of the paper. A suitable device, known for use in the production of impregnated paper in general, is the glue press. Alternatively, commercial tea bags can be dipped in or sprayed with an aqueous solution of edible acidic materials and then dried. Where the edible, acidic material is impregnated in commercial tea bags, it is possible that shrinkage of the paper will occur. It is thus preferred that the paper is impregnated with the acidic, edible material before it is divided into sizes suitable for the production of tea bags. The aqueous solution of the edible acidic material in which commercial tea bag paper is dipped preferably contains from 1 to 10% by weight of the acidic material. When the impregnated paper is made by spraying an aqueous solution onto commercial tea bag paper, the solution preferably contains from 5 to 60% by weight of the acidic material.
Oppfinnelsen skal illustreres ved hjelp av de følgende eksempler. The invention shall be illustrated by means of the following examples.
Eksempler 1-7 Examples 1-7
Virkningen av visse spiselige syrer på farven på tedrikken som oppnås fra teposer ble fastslått på følgende måte: Kommersielt teposepapir ble impregnert med spiselig syre ved dypping i en vandig løsning av syren og tørking, hvorved den resulterende syremengde i papiret ble omtrent 0,28 mg/cm 2. Det impregnerte papiret ble brukt for fremstilling av teposer. av standard varmeforseglet type, idet hver pose ble fremstilt av i alt 106 cm 2 papir og inneholdt 2 gram "MCTB"-blanding av sorte teblader. Hver pose inneholdt derfor ca. 30 mg av syren. Kontrollposer laget av uimpregnert papir ble også fremstilt. The effect of certain edible acids on the color of the tea beverage obtained from tea bags was determined as follows: Commercial tea bag paper was impregnated with edible acid by dipping in an aqueous solution of the acid and drying, whereby the resulting amount of acid in the paper was approximately 0.28 mg/ cm 2. The impregnated paper was used to make tea bags. of the standard heat-sealed type, each bag being made from a total of 106 cm 2 of paper and containing 2 grams of "MCTB" black tea leaf mixture. Each bag therefore contained approx. 30 mg of the acid. Control bags made of non-impregnated paper were also produced.
Det ble brukt 200 ml vann med temporær hårdhet 180 ppm for trekking av en tepose, og egenskapene for den resulterende væske ble fastslått, sammenholdt med kontrollen. Farvegrad-ering ble angitt i vilkårlige enheter, dvs. høyeste karakter = best farve. Resultatene vises nedenfor. 200 ml of water with a temporary hardness of 180 ppm was used to draw a tea bag, and the properties of the resulting liquid were determined, compared to the control. Color grading was given in arbitrary units, i.e. highest grade = best colour. The results are shown below.
Eksempel 8 Example 8
Virkningen av citronsyre på pH-verdiene i uttrekkene som oppnås fra forskjellige kommersielle teblandinger ble under-søkt. Teposer av "Constanta"-type ble fremstilt av papir som var impregnert ved dypping og tørking med citronsyre i en mengde av ca. 0,23 mg/cm 2, idet hver pose var fremstilt av 130 cm 2 papir og derfor inneholdt totalt 30 mg syre. Hver pose inneholdt 2 gram teblader av en av de følgende blandinger. Kontrollposer ble fremstilt ved å bruke uimpregnert papir. Hver pose ble trukket i 180 ml kokende vann, og pH for den resulterende væske ble målt med et standard pH-meter. De målte pH-verdier var som følger: The effect of citric acid on the pH values in the extracts obtained from different commercial tea blends was investigated. Tea bags of the "Constanta" type were made from paper impregnated by dipping and drying with citric acid in an amount of approx. 0.23 mg/cm 2 , each bag being made from 130 cm 2 paper and therefore containing a total of 30 mg of acid. Each bag contained 2 grams of tea leaves of one of the following mixtures. Control bags were prepared using non-impregnated paper. Each bag was steeped in 180 ml of boiling water, and the pH of the resulting liquid was measured with a standard pH meter. The measured pH values were as follows:
pH- verdier pH values
De ovenstående resultater viser at et syre:te-forhold på 15 mg/gram gir en pH-verdi som er sikkert over 4,6, den pH-verdi ved hvilken melk oster seg. The above results show that an acid:tea ratio of 15 mg/gram gives a pH value that is certainly above 4.6, the pH value at which milk curdles.
Eksempel 9 Example 9
Dette eksempel viser tristimulus-farveverdier for væsker fremstilt fra forskjellige kommersielle teblandinger med og uten citronsyre (30 mg/pose: standard varme-forseglet type laget som i eksemplene 1 til 7 ovenfor). Tefarvene ble målt under standardbetingelser med "Pretema Tristimulus Colorimeter". Farvene ble uttrykt som luminans (Y), dominerende bølgelengde (LD) og farvens renhet (P). Hver tepose med innhold av 2 gram blad-te ble trukket med 200 ml kokende vann. This example shows tristimulus color values for liquids prepared from various commercial tea blends with and without citric acid (30 mg/bag: standard heat-sealed type made as in Examples 1 to 7 above). The tea colors were measured under standard conditions with the "Pretema Tristimulus Colorimeter". The colors were expressed as luminance (Y), dominant wavelength (LD) and color purity (P). Each tea bag containing 2 grams of leaf tea was steeped with 200 ml of boiling water.
Resultatene var som følger: The results were as follows:
Ovenstående resultater viser at citronsyre i alle tilfel-ler øker luminans-verdien (Y) i teen og forskyver den dominerende bølgelengden (LD) med 1-2 nanometer mot den røde siden av spektret. Selv om renheten for farven i de fleste tilfel-ler var dårligere i de citronsyreholdige uttrekk, som det fremgår av kolorimetermålingene, blir denne parameter overveiet av forbedringene i Y og LD, og det menneskelige øye ser en total forbedring. I hvert tilfelle ble de målte verdier fulgt av en markert økning i klarhet og orangefarve, slik det frem-står for øyet. The above results show that citric acid in all cases increases the luminance value (Y) in the tea and shifts the dominant wavelength (LD) by 1-2 nanometers towards the red side of the spectrum. Although the purity of the color was in most cases worse in the citric acid-containing extracts, as can be seen from the colorimeter measurements, this parameter is outweighed by the improvements in Y and LD, and the human eye sees an overall improvement. In each case, the measured values were followed by a marked increase in clarity and orange colour, as is apparent to the eye.
Eksempel 10 Example 10
Dette eksempel illustrerer fremstilling i stor skala av teposer av papir som er impregnert med citronsyre. This example illustrates the large-scale production of paper tea bags impregnated with citric acid.
2600 m "Crompton" 15 g kommersielt teposepapir med bredde 282 mm ble rullet opp og ført gjennom et bad inneholdende 20 liter 2,12 vekt%-ig vandig citronsyre, og tørket ved føring gjennom et tørkekammer inneholdende varmesoner med temperaturer i området fra 38 til 56°C. Etter gjenopprulling ble det skå-ret ut to 94 mm brede remser, og dette papir ble brukt for fremstilling av teposer med "Constanta" te. Hver pose inne- 2600 m of "Crompton" 15 g commercial tea bag paper with a width of 282 mm was rolled up and passed through a bath containing 20 liters of 2.12% by weight aqueous citric acid, and dried by passing through a drying chamber containing heating zones with temperatures ranging from 38 to 56°C. After re-rolling, two 94 mm wide strips were cut out, and this paper was used for the production of tea bags with "Constanta" tea. Each bag in-
holdt 2 g kommersiell, sort blad-te og ca. 9,7 mg syre. "Ved trekking i 180 ml kokende vann ga prøveteen drikk med godt ut-seende og smak. kept 2 g of commercial, black leaf tea and approx. 9.7 mg acid. "When steeped in 180 ml of boiling water, the sample tea produced a beverage with good appearance and taste.
Eksempler 11 og 12 Examples 11 and 12
Fremgangsmåten fra eksempel 10 ble gjentatt, men det ble brukt sterkere citronsyreløsninger i impregneringstrinnet, nemlig 4,24% (eksempel 11) og 6,36% (eksempel 12). Det ble oppnådd "Constanta" teposer som hver inneholdt henholdsvis ca. 18,8 og 29,9 mg citronsyre. Vandige uttrekk oppnådd fra disse poser var enda bedre enn dem som ble oppnådd fra teposene fra eksempel 10, overensstemmende med de større syremeng-der som ble brukt. The procedure from Example 10 was repeated, but stronger citric acid solutions were used in the impregnation step, namely 4.24% (Example 11) and 6.36% (Example 12). "Constanta" tea bags were obtained, each containing approx. 18.8 and 29.9 mg citric acid. Aqueous extracts obtained from these bags were even better than those obtained from the tea bags from Example 10, consistent with the larger amounts of acid used.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16824/77A GB1603414A (en) | 1977-04-22 | 1977-04-22 | Tea bags |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO781394L NO781394L (en) | 1978-10-24 |
| NO148549B true NO148549B (en) | 1983-07-25 |
| NO148549C NO148549C (en) | 1983-11-02 |
Family
ID=10084356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO781394A NO148549C (en) | 1977-04-22 | 1978-04-20 | TEPOSE MADE OF WATERPROOFABLE SHEET MATERIAL |
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)
| 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 |
| PL1883309T3 (en) * | 2005-02-01 | 2010-01-29 | Koerber Helmut | Method for preparing tea from black or green tea leaves |
| JP5836692B2 (en) * | 2011-08-09 | 2015-12-24 | 守康 村田 | Tea bag |
| JP6297595B2 (en) * | 2013-01-31 | 2018-03-20 | グラットフェルター ゲルンスバッハ ゲーエムベーハー | Crosslinking / functionalizing system for paper or non-woven fabric |
| 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 |
| US20190166869A1 (en) | 2016-08-15 | 2019-06-06 | Conopco, Inc., D/B/A Unilever | A process for manufacturing a leaf tea product |
Family Cites Families (3)
| 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 |
-
1977
- 1977-04-22 GB GB16824/77A patent/GB1603414A/en not_active Expired
-
1978
- 1978-04-17 CA CA301,213A patent/CA1114248A/en not_active Expired
- 1978-04-18 AU AU35183/78A patent/AU515207B2/en not_active Expired
- 1978-04-18 DE DE19782816829 patent/DE2816829A1/en not_active Withdrawn
- 1978-04-18 FI FI781176A patent/FI781176A/en not_active Application Discontinuation
- 1978-04-18 IN IN420/CAL/78A patent/IN148240B/en unknown
- 1978-04-20 NO NO781394A patent/NO148549C/en unknown
- 1978-04-20 FR FR7811693A patent/FR2387860A1/en active Granted
- 1978-04-20 BR BR7802476A patent/BR7802476A/en unknown
- 1978-04-20 NL NL7804257A patent/NL7804257A/en not_active Application Discontinuation
- 1978-04-21 CH CH433978A patent/CH627708A5/en not_active IP Right Cessation
- 1978-04-21 IT IT67917/78A patent/IT1111463B/en active
- 1978-04-21 SE SE7804611A patent/SE7804611L/en unknown
- 1978-04-21 ZA ZA00782290A patent/ZA782290B/en unknown
- 1978-04-21 IE IE784/78A patent/IE46798B1/en unknown
- 1978-04-21 BE BE187032A patent/BE866274A/en not_active IP Right Cessation
- 1978-04-21 JP JP4763978A patent/JPS541190A/en active Pending
- 1978-04-24 AT AT0291878A patent/AT366120B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IN148240B (en) | 1980-12-13 |
| CA1114248A (en) | 1981-12-15 |
| IT1111463B (en) | 1986-01-13 |
| IT7867917A0 (en) | 1978-04-21 |
| NO148549C (en) | 1983-11-02 |
| SE7804611L (en) | 1978-10-23 |
| IE780784L (en) | 1978-10-22 |
| BR7802476A (en) | 1978-12-12 |
| GB1603414A (en) | 1981-11-25 |
| ATA291878A (en) | 1981-07-15 |
| BE866274A (en) | 1978-10-23 |
| NO781394L (en) | 1978-10-24 |
| AU515207B2 (en) | 1981-03-19 |
| CH627708A5 (en) | 1982-01-29 |
| IE46798B1 (en) | 1983-09-21 |
| FR2387860A1 (en) | 1978-11-17 |
| JPS541190A (en) | 1979-01-06 |
| AU3518378A (en) | 1979-10-25 |
| AT366120B (en) | 1982-03-10 |
| ZA782290B (en) | 1979-11-28 |
| FR2387860B1 (en) | 1983-05-27 |
| FI781176A (en) | 1978-10-23 |
| NL7804257A (en) | 1978-10-24 |
| DE2816829A1 (en) | 1978-10-26 |
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