TW590966B - Sealed flexible cartridge - Google Patents

Abstract

The present invention relates to a sealed flexible cartridge, designed to be extracted under pressure, containing a substance for the preparation of a beverage, consisting of a first and a second sheet of circular, oval or polygonal shape which leave between them a space for the substance and are welded together around their periphery, the first sheet being made of a material chosen from filter paper, a non-woven and a semi-rigid material and the second sheet being made of a material chosen from filter paper, a non-woven and a composite, in which the first sheet is such that it allows water at atmospheric pressure to pass through it or by piercing with a piercing means and the second sheet is such that it allows water to pass through it only if an overpressure of between 0.1 and 3 bar is achieved during extraction from the said cartridge.

Description

The present invention relates to a wrapable g that can be used to quench the contents under pressure. The flexible E contains a substance for preparing a beverage ^, wherein the beverage is selected from the following beverages: Roasted and ground coffee, blended coffee, ground coffee and soluble coffee #, chocolate drinks, or any dehydrated consumer material, the flexible box contains round, oval, or polygonal sections A first sheet and a second sheet, in which a space for accommodating a substance is left between the two sheets, and the two sheets are welded together along the periphery of the two sheets; The second sheet is made of selected materials of filter paper, non-woven fabric, and composite materials. Sealed cassettes are commercially available and can be opened by the effect of pressure rise. European Patent No. 5 12 468 discloses such cassettes: the problem with these cassettes is that they need a pointed quenching device to pierce the top of the cassette, and they need concave and raised components to open the bottom of the cassette. So that the coffee can flow into the cup. There are also boxes made of filter paper, such as the box disclosed in European Patent No. 272 432. The problem with these boxes is that water will flow into the coffee layer too quickly without generating a large pressure rise. As a result, a suitable amount of foam does not form on the coffee. It is an object of the present invention to provide a box for the user, which requires only a relatively low cost and simpler device during quenching, and can still produce a suitable amount of good quality foam on the coffee. The present invention relates to a flexible seal that is described in the preamble to the first paragraph of the scope of patent application, wherein the first sheet can be stabbed under atmospheric pressure or punctured by a puncturing device Break and make the water pass I -5- ^ scale applicable_ 家 料 ^^^! 〇X 297 ^ A7

During the quenching of the box, the first sheet will pass water only when an excessive pressure between 0.1 and 3 bar is reached. Therefore, the object of the present invention can be achieved by -㈣, where the :: surrounds the substance to be extracted, that is, the shell material between the first and second sheets is different. The second sheet system must be able to retain water: so that the water has enough time to wet and swell the coffee particles: this one = late action system can properly extract coffee and make it have good foam; The time depends on the extraction pump, in other words, it depends on the pressure of the box rising. Under normal conditions, the delayed action time of the excessive pressure of 3 bar is about _ seconds. Of course, during the quenching process, taking into account the pressure of the rising pressure, Gan; Jing, Ye can provide a support plate under the second sheet of the box. If 3 boxes of espresso coffee are used, then this roasted and ground coffee can be placed in M or compacted in Kuang. The amount of dimorph that is placed can be between 5 grams and 10 grams. If the first sheet is made of filter paper or non-woven fabric, water can flow into the coffee layer in the box only by gravity. On the other hand, if the first sheet is made of semi-rigid material, a piercing device is needed to open the first sheet, for example, by the device disclosed in European Patent No. 242 556. In the example of the filter paper, I paper having an apparent density of 15 to 30 g / m 2 and a thickness of between 1 mm and 1 mm is used. In the non-woven example, polypropylene, polyethylene, polyethylene terephthalate or polyurethane bismuthate having a surface density of 20 to 100 g / m 2 is used. In semi-rigid materials, it adopts a thickness of 20 to 100 micrometers-6-7 paper standard Tongcai SS Home Standard) --------- 590966 V. Description of the invention (4. Pure or multilayer plastics with an oxygen barrier layer, such as EVOH or PVDC 'and multilayer films such as paperboard, aluminum plastic or cardboard, and optionally pure or multilayer plastics with an oxygen barrier layer, such as EVOH or PVDC In the first embodiment, the second sheet system includes a weak part, and when the pressure value in g is between 0.1 and 3 bar, the weak part will hit ^ the weak part used here The word "," refers to the pre-scored part. The first sheet can also be filter paper, non-woven fabric or even a plastic sheet. In the first embodiment, the 'second sheet' is made of a ridge or a non-woven fabric with a tight mesh Made 'so that it can only pass water when it reaches a pressure of up to 3 bar. The term "tight sieve" as used herein means less air or water permeability. Made in In these two embodiments, the first sheet is not made of filter paper and Woven into 'is made of-semi-rigid materials. In this material ::: packed with materials, because it does not have a _ oxygen barrier layer of people with woven private ^ brother in two examples, the second The sheet is an aluminum / plastic compound. The "ming / plastic compound"-胄 used here refers to a plastic sheet with a pre-score on the top surface. In this example: "氏: 面" It is known to use outer packaging. On the other hand, if the first "is made of semi-rigid material, it will not require external packaging. The m / plastic layer can prevent oxygen from passing through. In the four embodiments, the first film 丄 丄, the upper 罘 and the 罘 一 are composed of a tortoise that can be removed and a woven or non-woven cover to form a layer, so that when it reaches 0 -7 -x 297 mm) ^ yvy〇〇

At a pressure of up to 3 bar, in this example, it is not; to;: ;; can pass water into the second sheet-there is a day-in a sixth implementation 制成 made of woven cloth. The first sheet is a heat-treated part of the following description of this specification, which will be described with reference to the drawings. FIGS. 1 and 2 are schematic views of the box according to the first and second embodiments of the present invention; FIG. 4 is a schematic diagram of a variation of the cassette of the first embodiment; FIG. 4 is a schematic diagram of a third embodiment of the present invention; and FIG. 5 is a schematic diagram of a fourth embodiment of the present invention. In the box (1) of FIG. 1, roasted and ground coffee (2) is enclosed between a first sheet (3) made of filter paper and a second sheet (4) also made of filter paper. between. The two sheets are welded together along the periphery of the box. The first sheet can pass water under the effect of atmospheric pressure, and the second sheet, which is also made of filter paper, includes a weak part, so that the 'coffee' will be fully wetted first during extraction, And only when the inside of the box has a large, "bar of excessive pressure," this part will swell sufficiently to make the liquid coffee flow out. Therefore, it has the effect of delaying the passage of coffee, which will allow the coffee to retain the right amount of high-quality foam. With this one box, we can use a quenching system without using any pointed device, but only need to fully enclose the box in a well-sealed manner, and then perform the quenching operation. -8-This paper size is applicable to Chinese National Standard (CNS) A4 (21〇297mm) Lu Binding

Line 6 V. Description of the invention (Figure 2 shows-Liyan, which has grinding and baking coffee between two sheets made of non-woven fabrics. The first thin) sealing dagger (8) is made of a kind that can pass under atmospheric pressure Made of non-woven fabric. The second system is made of a non-woven fabric with a tight mesh so that it can pass water when pressure is inside g. The two sheets are connected along their periphery. In this way, the same extraction system as e can be used. In the example, E⑴) is composed of a semi-rigid material made of Ming < younger sheet (12), and a second sheet (j 3) made of filter paper. Roasted and ground coffee (4) is housed between these two slices. These sheets are welded together along their periphery (15). In order to extract coffee from this box, it needs a needle to pierce the first sheet, such as disclosed in European Patent No. 242 556. During the extraction, when the pressure inside the craftsman reaches about 1 bar, the sheet made of filter paper can make the coffee pass through 0. Fig. 4 shows the concealment according to the third embodiment (16). The ground and roasted coffee (17) is made by enclosing a hard first sheet (丨 8) made of aluminum and an aluminum foil (19) and a pre-engraved plastic sheet (20). Into a composite board. The sheets (1 9) and (20) are welded to the sheet (丨 8) along the part (2 1). In order to pierce the sheet (18), it is necessary to use a needle body as disclosed in the aforementioned European patent. The thickness of the sheet (i 9) is such that it does not have mechanical strength; its function is to serve as a barrier to oxygen. When the pressure in the box reaches 1 bar, the sheet (20) will open. The advantage of this solution is that it does not require external packaging. ^ 0966

FIG. 5 shows the calendar (22) of the fourth embodiment. The ground and roasted coffee (24) is packaged between a hard sheet (2 3) and a second sheet composed of a filter paper layer (2 5) and a film (2 6). The sheets (2 5) and (2 6) are welded to the sheet (2 3) along the part (2). For quenching, it removes the coating film (2 6) 'and places the M in the PEI device disclosed in accordance with European Patent No. 242 556. Also, in this example, it is not necessary to provide an external package. Shrink word: PVDC: Polyvinyl chloride EVOH: Ethylene / vinyl alcohol molecular weight polymer -10- This paper size applies to China National Standard (CNS) Α4 specification (210 X 297 mm)

Claims (1)

590966 AB c I. Patent application scope 1. A sealed flexible box that can be extracted under pressure 'The flexible box contains a substance used to prepare a beverage, wherein the beverage consists of the following Selection of beverages: roasted and ground coffee, soluble coffee, ground coffee and soluble coffee mixture, chocolate drinks or any dehydrated consumer substances, the flexible box system includes round, oval or polygonal The first and second sheets, in which a space for accommodating substances is left between the two sheets, and are welded together along the periphery of the two sheets. The first sheet is made of filter paper, non-woven fabric and semi-rigid material. The second sheet is made of selected materials of filter paper, non-woven fabric and composite materials, and is characterized in that the first sheet is made to pass water under atmospheric pressure, or is borrowed The piercing device is used to pierce through the water, and the second sheet is during the quenching process, only when the excessive pressure between 0.1 and 3 bar is reached, It will allow water to pass through. 2. Sealed according to item 丨 of the scope of application, where the second sheet contains a weak part. When the pressure in M reaches the pressure between the bars, the weak part will be opened. 3. The seal according to item 1 of the patent claim, wherein the second sheet is made of filter paper or non-woven fabric with a tight mesh, so that when the pressure reaches 0.1 to 3 bar, it can make Water passes. 4. According to the sealed concealment of item b of the patent application scope, wherein the second thin-type seed / plastic composite is made, and the plastic sheet is scored in advance. ', 5. Seal M according to item 1 of the scope of the patent application, where the second sheet is -11-this paper size is suitable for financial _ transfer standard (CNS) Α4 specifications (210X297 public € ___________ 590966 A8 B8 C8 D8 VI. Application The patent scope consists of a removable film and a layer made of filter paper or non-woven fabric, so that when a pressure of 0.1 to 3 bar is reached, the second sheet can pass water. -12- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)