JPH04341164A - Bag for favorite beverage - Google Patents

Abstract

PURPOSE:To obtain the subject bag capable of absorbing and removing free chlorine in tap water and simply providing tasty coffee, etc., by including active carbon in a filter which is a bag material for a favorite beverage bag such as coffee, fermented tea and roasted green tea. CONSTITUTION:The objective bag containing coffee, fermented tea, etc., sealed therein is obtained by cutting, e.g. fibrous active carbon having 5-15mum diameter to 2-5mm length, forming a sheet from a mixture of 0.1-60% aforementioned cut fiber with pulp, etc., providing active carbon-containing paper and using the resultant paper.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a bag for preferential beverages such as coffee, black tea, and green tea, and more specifically, it removes odors such as free chlorine and mold in tap water that impair the taste of these beverages, and also removes odors such as free chlorine and mold that impair the taste of these beverages. It is a bag that has the ability to preserve those scents for a period of time.

0002

BACKGROUND OF THE INVENTION Tea bags for black tea have been widely used in the past, but recently they have also come to be used for coffee, green tea, hojicha, barley tea, etc. but,
Conventionally, these bags for preferential beverages have not been provided with a function to remove odors such as free chlorine and mold in tap water that inhibit the taste.

0003

[Problems to be Solved by the Invention] It is well known that the taste of coffee, tea, etc. is significantly impaired by free chlorine, moldy odor, etc. in tap water. For this reason, household water purifiers and coffee brewers that use activated carbon have become commercially available.
After purifying water using these devices, coffee or tea is often brewed.

[0004] Furthermore, in the case of a product containing coffee in a tea bag, the aroma gradually emanates from the coffee beans and fills the container. When you open the container, the aroma of coffee emanates from the container, but when you pour boiling water over the coffee beans, the aroma is much less than that of freshly ground coffee. There was a need for a product that would retain the aroma of coffee beans for a long period of time, and that would produce a strong coffee aroma when poured with boiling water.

[0005]

[Means for solving the problem] Activated carbon has the property of adsorbing and removing free chlorine in water, and also adsorbs scent components at room temperature, and releases the scent components again as the temperature rises when hot water is poured. The present invention was achieved as a result of focusing on the combination of these properties and researching the application of this to bags for preferential beverages such as coffee and tea.

[0006] That is, coffee, fermented tea, semi-fermented tea,
This is a palatability beverage bag selected from the group consisting of green tea, hojicha, and barley tea, which is made by containing activated carbon in a filter, which is the material of the palatability beverage bag.

The present invention will be explained in detail below.

[0008] Here, coffee includes not only regular coffee but also instant coffee, and fermented tea refers to tea made by fully fermenting tea leaves, with black tea being the most famous. Semi-fermented tea is made by partially fermenting tea leaves, such as oolong tea. All of these contain almost no vitamin C.

[0009] It is well known that the taste of coffee, black tea, green tea, etc. is largely influenced by the taste of the water used, in addition to the components extracted from the tea itself. Among the odor components of water, free chlorine odor is one of the biggest causes of spoiling the taste of coffee, etc., and by removing it, it is possible to brew even more delicious coffee.

[0010] The palatability beverage bag of the present invention adsorbs and removes free chlorine in tap water through the action of activated carbon, making it possible to enjoy coffee, etc. without chlorine odor.

[0011] Furthermore, when coffee or the like is stored in a bag, a pleasant aroma gradually emanates from the contents. The aroma fills the airtight container, but when the container is opened, the aroma evaporates, and by the time hot water is poured into the container, the aroma of the beans has already disappeared. However, if you seal it in a bag containing activated charcoal, it will adsorb the scent components inside the sealed container, and when you take it out and pour boiling water into it, the adsorbed scent components will be desorbed and released at high temperatures, so the scent will be released. It has the ability to hold for a long time.

[0012] The filter, which is the material of the bag for coffee, tea, and other beverages of the present invention, can be made of conventionally used sheets such as paper, cloth, knitted fabric, or nonwoven fabric made from pulp, synthetic fibers, etc. . Furthermore, the bag of the present invention must contain activated carbon in these sheets. The method of attaching activated carbon to the sheet is not particularly limited, and the effects of the present invention can be achieved in any manner.

The shape of the activated carbon to be applied is not particularly limited, but fibrous or powdered activated carbon is preferable in order to incorporate it into a sheet-like product.

When using fibrous activated carbon, the diameter is 5 to 1
Paper containing activated carbon can be easily obtained by cutting fibrous activated carbon of about 5 μm into lengths of about 2 to 5 mm, mixing this with pulp, and making a mixed paper. Synthetic fiber staples may be used instead of pulp, or a mixture of pulp and synthetic fiber staples may be used.

[0015] Alternatively, a nonwoven fabric made from a mixture of fibrous activated carbon and synthetic fibers may be used. As the material polymer for the synthetic fiber, polypropylene, polyethylene, polyester, polyvinylidene chloride, etc. can be used.

The mixing ratio of fibrous activated carbon is not particularly limited, but is preferably in the range of 0.1 to 60%. If the ratio of fibrous activated carbon decreases, the effect will decrease, and if the ratio of fibrous activated carbon increases, the breaking strength will decrease if the sheet is thin, and there is a risk that the bag will tear during use.

When powdered activated carbon is used, a sheet containing activated carbon can be made by sandwiching the powdered activated carbon between two nonwoven fabrics made of thermoplastic synthetic fibers and hot pressing. It is preferable to hold the activated carbon in such a state in the nonwoven fabric, since there is no risk of the fine particles leaking out of the sheet, and the activated carbon can be held in a stable state.

[0018] As the material for the nonwoven fabric used here, polypropylene, polyethylene, polyester, etc. can be used. The particle size of powdered activated carbon is not particularly limited, but is 20 to 30
Approximately 0 μm is preferable. If the particle size is too small, fine powder will scatter during processing into a sheet, resulting in poor processability. Another disadvantage is that the fine activated carbon powder spills out from between the nonwoven fibers and falls off. Furthermore, if the particle size is too large, the surface of the finished sheet will be uneven and the properties of the sheet will be non-uniform.

The amount of powdered activated carbon to be included is not particularly limited as long as it is sandwiched between two sheets and integrated by hot pressing, but is preferably 0.1 to 10 g/m2.

Alternatively, the fibrous activated carbon can be pulverized or not pulverized and sandwiched between thermoplastic nonwoven fabrics to form a sheet by heat pressing, and this sheet can be used for bags for coffee, tea, etc.

Regarding the functions and effects of the bag of the present invention,
The explanation has mainly been given using coffee as an example, but other fermented teas such as black tea, semi-fermented teas such as oolong tea, green tea, roasted tea, and barley tea can also become significantly more delicious if free chlorine, which inhibits their taste, is removed. It is similar to coffee, and the effect of activated charcoal allows these aromas to be preserved for a long time, as is the case with coffee. Therefore, the bag of the present invention can also be applied to black tea, oolong tea, green tea, hojicha and barley tea.

[0022]

[Examples] The present invention will now be explained in more detail with reference to Examples.

(Example 1, Comparative Example 1) Fibrous activated carbon with a diameter of 10 μm and a specific surface area of 1500 m2/g was cut into lengths of 3 mm, and vinylon fiber was mixed therein to obtain a fabric weight of 20 g/m2.
got a paper. The mixing ratio of fibrous activated carbon was 20%. 5 g of finely ground coffee was placed in 150 cm 2 of this paper, folded to form a bag, and the top was tied with a string to prevent the coffee grains from coming out (Example 1).

For comparison, a coffee bag was made from paper containing no fibrous activated carbon (Comparative Example 1), and a comparative test was conducted using tap water with a chalky odor. As a result, free chlorine was not detected by the orthotolidine reagent in coffee bags containing fibrous activated carbon, but free chlorine was detected in coffee bags without fibrous activated carbon.

(Example 2) Diameter 10 μm, specific surface area 15
00 m2/g of fibrous activated carbon is cut to a length of 50 mm, and the fabric weight is 1 so that the fibrous activated carbon has a weight of 2 g/m2.
It was sandwiched between two sheets of 3 g/m2 polypropylene nonwoven fabric and hot pressed into dots to form a single sheet. This sheet 1
Put 5 grams of finely ground coffee in a 5cm x 10cm
It was folded into a bag shape and stored in an airtight glass container with a volume of 50 ml. In order to examine the scent release properties of the sheet, the contents were removed after 10 days, and the sheet alone was immersed in 200 ml of boiling water and stirred, and a fairly strong coffee aroma was observed.

[0026]

[Effects of the Invention] By using the preferred beverage bag of the present invention, free chlorine in tap water that significantly impairs the taste of coffee, etc. can be easily removed by the action of activated carbon, so you can easily brew delicious coffee, etc. I can do it.

Furthermore, since activated carbon has the property of adsorbing scents at room temperature and desorbing and releasing them at high temperatures, by utilizing this property, it is possible to preserve the scent of coffee etc. sealed in the bag for a long period of time.

Claims (1)

[Claims] [Claim 1] Coffee, fermented tea, semi-fermented tea, green tea,
A palatability beverage bag selected from the group consisting of roasted green tea and barley tea, which is made by containing activated carbon in a filter, which is a material for the palatability beverage bag.