JP2007283084A - Tea strainer bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To settle the problem of a conventional tea strainer bag which is sealed with a turn back flap at the opening of the tea strainer bag, after storing tea in the bag and the tea inside the bag is pressed with the front and back filter medium and the tea inside of the bag which prevents the tea inside the bag from being fully swollen (tea is not extracted effectively). <P>SOLUTION: The tea strainer bag has a strainer bag 1 of rectangular shape when viewed from the front, which has a tea storage part 17 inside and an opening 16 at its upper rim. The upper rim of the opening 16 has a continuity of hooking parts 2 of a certain length to be hooked on the outside of the rim of the extraction pot Y. By hooking the hooking parts 2 on the outside of the rim of the extraction pot, tea can be extracted while the strainer bag 1 containing tea is swollen largely. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a tea strainer bag for containing tea leaves in a strainer bag body and extracting tea leaf extracts into hot water in an extraction container. The tea strainer bag of the present application can handle Japanese tea, black tea, coffee powder, etc. as tea leaves.

  As this type of general tea strainer bag, there are those shown in FIGS. The tea strainer bag of the conventional example shown in FIGS. 18 to 20 uses a non-woven filter medium having water resistance and water permeability. And this tea strainer bag folds up the front material 11 and the back material 12 (FIG. 19) in the state where the bottom part 13 (FIG. 19) continues, and heat-welds the left and right side edge parts 14 and 14 (thermal welding). 15 and 15) to form a filter bag body 1 having a rectangular front view. An opening 16 is formed in the upper part of the strain bag main body 1 over almost the entire width in the longitudinal direction, and the tea leaves P are placed from the opening 16 into the accommodating portion 17 (FIG. 19) of the strain bag main body 1. It can be accommodated. In addition, a folding lid 19 that closes the opening 16 is formed on the top of the front material 11, while an inner folding portion 18 (FIG. 19) is formed on the top of the backing 12. Note that the left and right end portions of the folding lid 19 and the inner folding portion 18 are bonded to the front material 11 or the back material 12 by the heat welding portions 15 and 15.

  The tea strainer bag of this conventional example is from the flat state of FIG. 19A (actually, it is in an extremely thin state by eliminating the internal air), as shown in FIG. After the accommodating portion 17) is inflated and a predetermined amount of tea leaves P are accommodated in the accommodating portion 17, the folding lid 19 is placed on the opening portion 16 as shown in FIG. Tea leaves P can be encapsulated. Then, the tea strainer bag containing tea leaves shown in FIG. 19C is housed in an extraction container Y such as a teapot as shown in FIG. 20, for example, and tea leaf extract is extracted into the hot water W by pouring hot water W. it can.

  By the way, tea leaves P (for example, Japanese tea) are dried and shrunk before extraction, and are soaked in hot water W to swell with moisture as shown by a chain line in FIG. Will come to do. And when extracting tea leaf extract, tea leaf P has the property that the extraction efficiency of tea leaf extract improves, so that the area which contacts a water | moisture content (hot water W) is large (it swells). .

  As a known example of this type of tea strainer bag, there is one shown in, for example, Utility Model Registration No. 311192 (Patent Document 1).

Utility Model Registration No. 3101192

  By the way, in the tea filtering bag of the conventional example shown in FIGS. 18-20, the tea filtering bag containing tea leaves is immersed in the hot water W in the extraction container Y at the time of extraction of the tea leaf extract. The opening 16 is closed with a folded lid 19. And as shown in FIG.19 (C), in the state which put the folding lid 19 on the opening part 16 of the filter bag main body 1 containing tea leaves, the surface material 11 and the back material 12 are attracted mutually, and the filter bag main body The volume in 1 is reduced. That is, when the folding lid 19 is put on, the front material 11 and the backing material 12 of the filter bag main body 1 are compressed to the close side, and the expansion allowance to the volume expansion side becomes poor.

  As described above, in the tea strainer bag of the conventional example shown in FIGS. 18 to 20, even if the tea leaves P in the filter bag body 1 absorb water and swell, the tea leaves P become the surface material 11 and the backing material. 12 and was not able to swell so much (the contact area of the tea leaves P with the hot water W did not increase so much), and therefore there was a problem that the extraction efficiency of the tea leaf extract was poor. In addition, if extraction efficiency of tea leaf extract is poor in this way, it takes longer extraction time (longer waiting time and lower tea temperature) to extract delicious tea, or a large amount of tea leaves. There arises a problem that it is necessary to accommodate the filter bag body 1 (which is uneconomical).

  Therefore, in view of the above-mentioned conventional problems, the present invention is a tea strainer bag in which tea leaves are contained in a tea strainer bag and extraction efficiency when extracting the tea leaf extract in the extraction container can be improved. It was made for the purpose of providing.

  The present invention has the following configuration as means for solving the above problems. The present invention is directed to a tea strainer bag for containing tea leaves (Japanese tea, black tea, coffee powder, etc.) and extracting tea leaf extracts into hot water in an extraction container.

The invention of claim 1 of the present application The tea strainer of the invention of claim 1 of the present application comprises a filter bag body having a rectangular shape when viewed from the front, having an opening on the upper side and an accommodating part capable of accommodating tea leaves inside. Yes.

  As a material for the tea strainer bag (particularly the strainer bag main body), a nonwoven fabric having water resistance and water permeability is generally used. In addition, the tea strainer bag is folded back with the front and back materials being continuous at the bottom, and the left and right side edges are thermally welded to form a rectangular bag main body in front view. It is preferable that the bottom portion is gusset-folded so that the filter bag main body portion easily swells.

  Further, in the tea strainer bag according to claim 1 of the present application, a hooking piece of a predetermined length that is hooked on the outer side of the mouth edge of the extraction container is continuously provided on one upper side of the opening of the strainer bag body. Forming.

  For example, in the tea strainer bag of the conventional example of FIG. 18, this hooking piece is provided in a state where both side edges of the folded lid are continuously welded up and down without being thermally welded to the front material (or backing material). However, in this case, the filter bag main body and the latching piece are integrally continuous with one non-woven fabric, or a material different from the filter bag main body is used for the latching piece as in claim 3 of this application. May be.

  Moreover, this latching piece can be folded along the surface material or back material of the filter bag main body in the shipping or storage stage. In that case, it is used by standing above the opening of the filter bag body during use. In addition, this latching piece can also be packed and shipped in the state extended above the opening part of the filter bag main body.

  This hanging piece can be attached to the outer edge of the mouth of an extraction container (for example, a teapot or a drinking cup) by wetting with water, for example, and the filter bag body containing tea leaves is in a stable state with this hanging piece attached. It can be supported by. In addition, although this latching piece can be provided with means for latching the latching piece on the outer surface of the mouth edge of the extraction container as in claim 4 or claim 5 described below. Item 1 may be one in which no special latching means is provided for the latching piece.

  The tea strainer bag of claim 1 is used as follows. First, in order to store the tea leaves in the filter bag body, the latch piece is filtered and raised above the opening of the bag body (when the latch piece is folded), and the inside of the container is opened from the opening of the filter bag body. The required amount of tea leaves is accommodated. At this time, the accommodation part and the opening part of the filter bag main body are preferably expanded as much as possible. Next, the tea bag containing tea leaves is dropped into the extraction container from the opening of the extraction container (for example, a teapot or a cup of tea), and the hooking piece is placed on the outer edge of the extraction container by appropriate means (in this claim 1, For example, the tea strainer bag containing tea leaves can be attached to the extraction container in an extractable state. Then, hot water is poured from the opening of the extraction container, and the tea leaf extract is extracted from the tea leaves in the filter bag body into the hot water. In addition, after pouring hot water into the extraction container, if the container lid is put on the opening of the extraction container, the latching piece can be pressed by the container lid, so that the latching piece falls into the extraction container. There is no.

  When the tea leaf bag containing tea leaves is attached to the extraction container as described above, the opening portion of the filter bag body remains largely open, but the filter bag body is maintained in the vertical orientation, so the filter bag Tea leaves in the body do not overflow from the opening. In addition, when the tea strainer containing tea leaves is mounted in this manner, the volume of the storage portion of the strainer bag body is maintained large, so that the tea leaves soaked in the hot water in the extraction container are filtered (see Table Therefore, the tea leaves can absorb water and be sufficiently swollen. And if tea leaves fully swell, the contact area of the hot water with respect to this tea leaves will become large, and the function that the extraction efficiency of a tea leaf extract becomes favorable will arise.

Invention of Claim 2 of the Invention The tea strainer bag of the invention of claim 2 of the present application comprises a filter bag body having a rectangular shape in front view, having an opening on the upper side, and an accommodating part capable of accommodating tea leaves inside. At the same time, hooking pieces of a predetermined length that are hooked on the outer side of the mouth edge of the extraction container are continuously formed on both upper sides facing the opening.

  The difference between the tea strainer bag according to claim 2 and the tea strainer bag according to claim 1 is that the one according to claim 1 is provided with a latching piece on one upper side of the opening. The two are different in that latching pieces are provided on both upper side portions of the opening facing each other. In the tea strainer bag according to the second aspect, the basic structure, the structure of each latching piece, etc. can adopt the one according to the first aspect.

  In the tea strainer bag according to the second aspect, the main portion of the strainer bag containing tea leaves is dropped from the opening of the extraction container, and two opposing latching pieces are respectively latched at opposing positions on the outer edge of the extraction container. To use.

Invention of claim 3 of the present invention In the invention of claim 3 of the present application, in the tea strainer bag according to claim 1 or 2, the hook piece is used separately from the filter bag main body, One end is filtered and bonded to the upper side of the opening of the bag body. In addition, when the tea strainer bag of claim 1 is cited, the retaining piece is adhered to one upper side, and when the tea strainer bag of claim 2 is cited, the two retaining pieces are opposed to each other. Adhere to both upper sides.

  Adhesion between the retaining piece and the filter bag main body can be performed, for example, by heat welding at an appropriate stage in the manufacturing process of the tea filter bag.

  By the way, a non-woven fabric (which is expensive as a material) having water resistance and water permeability is used in the filter bag main body part for extracting tea leaf extract, but the hanging piece part is immersed in hot water. Therefore, water resistance and water permeability are not particularly required (not necessarily non-woven fabric).

  Then, as in claim 3 of the present invention, in the case where the latching piece is filtered and separated from the bag main body, the latching piece has a function that is inexpensive and does not have a nonwoven fabric such as paper or plastic film (for example, “waist”) Materials with strong resistance, imperviousness, etc. can be used. The other structure of the tea strainer bag of claim 3 is the same as that of claim 1 or 2.

Invention of Claim 4 In the invention of claim 4 of the present application, in the tea strainer bag according to any one of claims 1 to 3, the retaining piece is placed on the outer surface side of the retaining piece on the mouth of the extraction container. An adhesive layer with release paper is attached to the edge. The adhesive layer with release paper may have a relatively small area.

  This adhesive layer with release paper may be one obtained by attaching hot paper (which will be an adhesive layer) to which release paper is applied, or one using a double-sided adhesive piece with release paper. When hot melt is applied as the adhesive layer, the adhesive (hot melt) permeates the fabric (nonwoven fabric) if the latching piece is a non-woven fabric. In the case where the bag is separated from the filter bag main body, the problem of adhesive permeation can be solved by using a water-impermeable material (paper or plastic film) for the retaining piece.

  In the tea strainer bag according to claim 4, when the tea leaves are accommodated in the filter bag body and attached to the extraction container, the release paper is peeled off from the adhesive layer with the release paper of the hooking piece (the adhesive layer is exposed). By attaching the adhesive layer to the outer surface of the mouth edge of the extraction container, the retaining piece can be hooked to the outer surface of the mouth edge of the extraction container in a stable posture. The other functions of the tea strainer bag of claim 4 are the same as those of claims 1 to 3.

Invention of Claim 5 In the invention of Claim 5 of the present application, in the tea strainer bag according to any one of Claims 1 to 3, the hook piece is attached to an extraction container such as a teapot. A slit or a hole-like hook portion that can be hooked on a protruding portion such as a spout or a handle is formed.

  As the hooking portion, it is possible to use a hooking piece having a long straight slit or a hole having a predetermined size left in advance at an appropriate position of the hooking piece. Further, the hooking portion (slit or hole) may be formed by a perforation, and the perforation may be cut during use to form a hooking opening (slit or hole). In addition, this hook part (slit or hole) can be directly formed on the hook piece at the manufacturing stage of the tea strainer bag.

  In the tea strainer bag according to claim 5, when the tea leaves are accommodated in the strainer bag body and attached to the extraction container, the hooking portion (slit or hole) of the latching piece is used as the protruding portion of the extraction container (teapot) ( The hook can be hooked on the extraction container in a stable posture by being hooked on the spout or the handle.

  By the way, in a small teapot, the spout which becomes a protrusion part and the handle are oriented in the direction of an angle of 90 ° from the center of the teapot. On the other hand, in the case where the latching pieces are respectively provided on both upper side portions as in the second aspect, a hooking portion (for projecting portion hooking) is provided on each of the latching pieces as in the fifth aspect. Both hooks cannot be hooked at the same time on both protrusions of the teapot (the spout and handle are oriented in a direction of 90 °). In that case, the hook of either one of the hooks Is hooked on one protrusion, and the other hooking piece is hooked on the outside of the mouth edge of the teapot. The other functions of the tea strainer bag of claim 5 are the same as those of claims 1 to 3.

Advantages of the Invention of Claim 1 The tea strainer bag of the invention of claim 1 has a predetermined length hooked on the outer side of the lip of the extraction container on one upper side of the opening of the strainer bag body. Since the stopper pieces are formed continuously, tea leaves containing tea can be obtained with the stopper pieces hooked to the outside of the mouth edge of the extraction container so that the opening and the storage portion of the filter bag body are greatly expanded. A strainer bag can be attached to the extraction container.

  Therefore, in the tea strainer bag according to the first aspect, when the tea leaf extract is extracted from the tea leaves in the filter bag body in the extraction container, the capacity of the container portion of the filter bag body to sufficiently swell the tea leaves. Therefore, the extraction efficiency of the tea leaf extract can be improved. If the extraction efficiency of the tea leaf extract is improved in this way, the extraction time can be shortened and the amount of tea leaf accommodated in the filter bag body can be saved.

Advantages of the Invention of Claim 2 The tea strainer of the invention of claim 2 has a predetermined length that is hooked on the outer side of the mouth of the extraction container, on both upper sides of the opening of the strainer bag body. Since the hooking pieces are continuously formed, the tea leaf bag containing tea leaves can be attached to the extraction container by hooking both the hooking pieces at opposite positions outside the mouth edge of the extraction container. .

  In this way, when both the opposing latching pieces are hooked on the mouth edge of the extraction container, the tea bag containing tea leaf does not tilt in the extraction container, and the opening of the filtering bag body is forced. It can be maintained in the open position.

  Therefore, in the tea strainer bag according to the second aspect, in addition to the effect of the first aspect, the mounted state of the tea strainer bag containing tea leaves can be further stabilized, and the opening portion and the strainer bag are provided by the both retaining pieces. The main body can be maintained in a largely open posture (tea leaf extraction efficiency is further improved).

Advantages of the Invention of Claim 3 The invention of claim 3 uses the tea strainer bag of claim 1 or 2 in which the retaining piece is separated from the strainer bag body (made of non-woven fabric). Therefore, as the material of the hooking piece, for example, an inexpensive and impermeable material such as paper or plastic film or a material having a “waist” can be used.

  Therefore, in the tea strainer bag of claim 3, in addition to the effect of claim 1 or 2, there is an effect that an appropriate material can be selected as the material of the latch piece according to the use.

Advantages of the Invention of Claim 4 The invention of claim 4 is the tea strainer bag according to any one of claims 1 to 3, wherein the latching piece is placed on the outer surface side of the latching piece and the mouth of the extraction container. Since the adhesive layer with release paper to be adhered to the edge is attached, when attaching the tea strainer bag containing tea leaves to the extraction container, the adhesive layer is adhered to the outer surface of the lip of the extraction container. The stop piece can be hooked on the outer surface of the mouth edge of the extraction container.

  Therefore, in the tea strainer bag according to the fourth aspect, in addition to the effects of the first to third aspects, the tea strainer containing tea leaves is separated from the extraction container by the adhesive layer with release paper provided on the retaining piece. There is an effect that it can be securely attached in a stable posture.

Advantages of the Invention of Claim 5 The invention of claim 5 is the tea strainer bag according to any one of claims 1 to 3, wherein the latch piece is attached to an extraction container such as a teapot. Since a hooking part (slit or hole) that can be hooked on a protruding part such as a spout or a handle is formed, when the tea strainer containing tea leaves is attached to the extraction container, the hooking part is attached to the protruding part of the extraction container. The hook can be hooked to the outer surface of the mouth portion of the extraction container.

  Therefore, in the tea strainer bag according to the fifth aspect, in addition to the effects of the first to third aspects, the tea strainer containing tea leaves is reliably secured with respect to the extraction container by the hook portion provided on the retaining piece. There is an effect that it can be attached to.

  Further, in the case of the tea strainer bag of claim 5, the hooking portion (slit or hole) of the latching piece can be directly formed at the manufacturing stage of the tea strainer bag. Thus, a complicated manufacturing process of attaching another member becomes unnecessary.

  Hereinafter, some embodiments of the present application will be described with reference to FIGS. 1 to 17. FIGS. 1 to 5 show the tea strainer bag of the first embodiment, and FIGS. 6 and 7 show the second embodiment. Tea filter bags of the third embodiment are shown in FIGS. 8 to 9, FIG. 10 is a tea filter bag of the fourth embodiment, FIGS. 11 to 13 are tea filter bags of the fifth embodiment, 14 to 15 show the tea strainer bag of the sixth embodiment, and FIGS. 16 to 17 show the tea strainer bag of the seventh embodiment.

First Embodiment of FIGS. 1 to 5 The tea strainer bag of the first embodiment shown in FIGS. 1 and 2 uses a non-woven filter medium having water resistance and water permeability. And this tea filter bag turns the front material 11 and the back material 12 in a state where the bottom portion 13 is continuous, and heat-welds the left and right side edge portions 14 and 14 (the satin portion indicated by reference numerals 15 and 15). A filter bag main body 1 having a rectangular shape in front view is formed, and a latching piece 2 having a predetermined length is integrally connected to the upper side portion of a front material 11 (or a back material 12). Although the magnitude | size of the filter bag main body 1 is not specifically limited, The thing with a left-right width of about 90-100 mm and a vertical height of about 70-80 mm is used. In FIG. 2, the thickness of the filter medium is shown to be considerably thick for drawing, but the thickness of the filter medium is actually about one line.

  In the upper side portion of the strainer bag body 1, an opening 16 having a length almost covering the entire width is formed. The bottom portion 13 of the filter bag body 1 is gusset-folded so that the accommodating portion 17 between the front material 11 and the backing material 12 can be inflated to a relatively large volume as shown in FIG. A reinforcing inner fold 18 is provided on the upper side of the backing 12.

  As shown in FIGS. 4 (C) and 5, the latching piece 2 continued to the upper side of the surface material 11 is latched on the outer surface Ya of the lip portion of the extraction container (a teapot in the illustrated example). For supporting tea strainer bags. Although the magnitude | size of this latching piece 2 is not specifically limited, It is the same width (90-100 mm) as the left-right width of the surface material 11, and the extension length is formed about 35-40 mm. The latching piece 2 is folded along the outer surface of the surface material 11 as shown by solid lines in FIGS. 1 and 2 at the shipping stage and storage stage, while the chain line is shown in FIGS. As shown in (2 '), it can stand up above the opening 16 of the filter bag body 1.

  In the tea strainer bag of the first embodiment, the retaining piece 2 is adhered to the outer surface Ya of the extraction container Y on the outer surface side of the retaining piece 2 (the same side as the outer surface of the surface material 11). An adhesive layer 3 with release paper is adhered. In this first embodiment, the adhesive layer 3 with release paper uses a double-sided adhesive piece 32 covered with the release paper 31, and the double-sided adhesive piece 3 with release paper is attached to the outer surface side (surface material 11). It is attached to the center near the tip of the same surface side as the outer surface. The size of the double-sided adhesive strip 3 with release paper is not particularly limited, but may be a relatively small one of about 0.5 to 1 cm2.

  The tea strainer bag according to the first embodiment is formed from a belt-like base paper having a predetermined width (for example, about 230 mm), as shown in FIG. 3, a folding process A, a double-sided adhesive strip application process B, a front / back adhesive process C, and a latching piece folding process. D, manufactured through a product separation step E. Note that the strip-shaped base paper is supplied by being unwound in order from a roll wound. Further, in each of the processing steps A to E, the diagram shown in (a) is a plan view, and the diagram shown in (b) is a longitudinal sectional view of each (a) diagram.

  Each processing step A to E in FIG. 3 will be described below.

  In the folding step A, the belt-like base paper is folded into the shape of a filter bag main body 1 </ b> A having a front material 11, a backing material 12, a bottom portion 13, and an inner folding portion 18. At this time, the hooking piece 2 portion continuous with the surface material 11 is extended in a state of protruding outward from the height width of the strainer bag body 1.

  In the double-sided adhesive strip application step B, the double-sided adhesive strip 3 with release paper is sequentially applied to the position near the tip of the latching strip 2 at a product pitch interval. In addition, this double-sided adhesive piece 3 with a release paper is affixed to the lower surface side of the latching piece 2 in the figure (a) of the double-sided adhesive piece sticking process B of FIG.

  In the front and back bonding step C, a set of two heats in which the filter bag main body portion 1A (the range in which the front material 11, the back material 12, the bottom portion 13, and the inward folding portion 18 excluding the retaining piece 2 are superposed) are brought close to each other. The welds 15 and 15 are sequentially heat-welded at every product pitch interval. At this time, the position of each heat welding part is determined so that the double-sided adhesive strip 3 with the release paper previously attached is located in the central part between the two heat welding parts 15 and 15 which are the left and right ends of the product. To do. In addition, you may make this front-and-back adhesion process C and double-sided adhesive piece sticking process B reverse order.

  In the latching piece folding step D, after forming the heat welding portions 15, 15, the latching piece 2 portion is folded along the outer surface of the surface material 11. In another embodiment, the hook piece 2 portion is filtered and the product can be made to extend outward from the bag body 1 portion without performing the hook piece folding step D.

  In the product separation step E, the product (tea filter bag) is separated by sequentially cutting between a pair of two heat welding portions 15 and 15. Each separated tea strainer bag is laminated into a product after being laminated in a predetermined number.

  The tea strainer bag of the first embodiment is used as shown in FIGS. Before use, as shown in FIG. 4 (A), the latching piece 2 is in a flat state (actually an extremely thin state). ) So as to stand up above the opening 16. In addition, when the latching piece 2 is extended above the opening part 16 from the beginning, the raising operation | work of this latching piece 2 is unnecessary.

  Next, as shown in FIG. 4B, the inside of the bag main body 1 (accommodating portion 17) is inflated to accommodate a required amount of tea leaves P in the accommodating portion 17. When the tea leaf P is accommodated in the accommodating portion 17, if the tea strainer bag is slightly tilted with the retaining piece 2 facing downward, the retaining piece 2 is used as a receiving guide for accommodating the tea leaf. can do.

  The release paper 31 of the double-sided adhesive strip 3 with release paper adhered to the latching piece 2 is peeled off in the state of FIG. 4B. The release paper 31 is peeled off as shown in FIG. It can be performed during any step of (A) to (C).

  Next, the hanging piece 2 portion of the tea leaf bag containing tea leaves shown in FIG. 4 (B) is picked, and the tea bag containing tea bag body 1 portion is dropped into the extraction container Y as shown in FIG. 4 (C). . At this time, the accommodating part 17 and the opening part 16 of the filter bag main body 1 are expanded as much as possible.

Subsequently, the adhesive piece 2 is bent to the outside of the lip of the extraction container as indicated by a chain line (reference numeral 2 ') in FIG. 4C, and the adhesive exposed on the outer surface of the hook piece 2'. The layer 32 ′ is adhered to the outer surface Ya of the mouth edge of the extraction container Y. In this state, as shown in FIGS. 4C and 5, the latching pieces (2 ′, 2) are bonded to the outer surface Ya of the lip portion of the extraction container with the adhesive layers (32 ′, 32). Therefore, the tea strainer bag containing tea leaves is supported (mounted) in a stable posture. In this wearing state,
Since there is nothing that narrows the opening 16 (the folded lid 19 narrows the opening 16) as in the conventional example shown in FIG. 20, the storage portion 17 and the opening 16 of the filter bag body 1 are largely opened. Is maintained at.

  And hot water is poured from the opening of the extraction container Y, and the tea leaves P in the filter bag body 1 are immersed in the hot water W. At this time, the opening 16 of the filter bag body 1 remains largely open, but since the filter bag body 1 is maintained in the vertical orientation, the tea leaves P in the filter bag body 1 overflow from the opening 16. I don't get out.

  Further, in the mounted state of the tea strainer containing tea leaves shown in FIG. 4 (C) and FIG. 5, the volume of the storage portion 17 of the strainer bag body 1 is maintained in a large state. The tea leaves P immersed therein are not pressed by the filter medium (surface material surface material, backing material 12), so that the tea leaves P can absorb water and be sufficiently swollen. When the tea leaves P are sufficiently swollen as shown in FIG. 4C (chain line P ′) or FIG. 5, the contact area of the hot water W with the tea leaves (P ′, P) becomes wide. , Extraction efficiency of tea leaf extract is improved.

  As described above, when the extraction efficiency of the tea leaf extract is improved, a high concentration tea leaf extract can be extracted in a short time.

  In this embodiment, a teapot is adopted as the extraction container Y. However, in other embodiments, a drinking cup can be used for the extraction container. In that case, 1 part of the filter bag main body containing tea leaves is dropped into the drinking cup, and the adhesive layer 32 of the hooking piece 2 is adhered to the outer surface of the mouth edge of the drinking cup.

Second Embodiment of FIGS. 6 and 7 The tea strainer bag of the second embodiment shown in FIGS. 6 and 7 is the same as that of the strainer bag body 1 as the retaining piece 2 in the tea strainer bag of the first embodiment. A separate one is used, and one end portion 21 of the hooking piece 2 is bonded to the upper side portion of the surface material 11.

  Adhesion between the one end portion 21 of the latching piece 2 and the strainer bag body 1 (surface material 11) can be performed by, for example, heat welding at an appropriate stage in the manufacturing process of the tea strainer bag.

  By the way, the filter bag body 1 part is made of a non-woven fabric (which is expensive as a material) having water resistance and water permeability in relation to extracting the tea leaf extract, but the hanging piece 2 part is in hot water. Therefore, water resistance and water permeability are not particularly necessary (not necessarily non-woven fabric).

  In the case where the latch piece 2 is filtered and separated from the bag body 1 as in the second embodiment, the latch piece 2 has a function which is inexpensive and does not have a nonwoven fabric such as paper or plastic film ( For example, materials having strong “waist”, impermeable materials, etc. can be used. In addition, when using the thing made from paper as the latching piece 2, if the thing which coated the hot melt resin on the adhesive surface of this latching piece (made from paper) 2 is used, it is reliably with respect to the filter bag main body 1. It can be heat welded.

  Further, in the case where a water-impermeable material such as paper or plastic film is used for the hooking piece 2, when the adhesive layer 3 with release paper is provided on the hooking piece 2, the adhesive layer 32 may be a hot melt or the like. Even when a mucous adhesive is used, the adhesive does not permeate the cloth of the retaining piece 2. Therefore, in order to provide the adhesive layer 3 with release paper on the retaining piece 2, a method other than the attachment of the double-sided adhesive piece with release paper can be used.

  In addition, since the other structure and function in the tea strainer bag of this 2nd Example are the same as the thing of the said 1st Example, the description is used.

Third Embodiment of FIGS. 8 and 9 The tea strainer bag of the third embodiment shown in FIGS. 8 and 9 is a latch for latching the latching piece 2 in the first embodiment on the extraction container Y. The modification of a means is shown.

  In the tea strainer bag of the third embodiment, as shown in FIG. 8, a hooking portion 4 comprising a perforation 41 for forming a slit is provided at a position near the tip of the hooking piece 2.

  The hooking portion 4 employed in the tea strainer bag of the third embodiment is for forming a linear slit long in the width direction at a position near the tip of the hooking piece 2. The long straight perforations 41 are formed leaving uncut portions of a predetermined small length (for example, about 5 to 10 mm each) at both ends. Between the perforation 41 portion and the leading edge of the latching piece 2, for example, a narrow strip 42 having a width of about 5 to 10 mm is formed. In addition, the perforation 41 used as this hook part 4 can be formed in the manufacture stage of a tea strainer bag.

  When the hook portion 4 is cut at the perforation 41 portion, the hook portion 4 ′ having the perforation portion opened (opening 43) is formed near the tip of the hook piece 2 ′ as shown in FIG. It is formed. In the state in which the perforation 41 portion is cut (the state of the hooking portion 4 'shown by the chain line in FIG. 8), a straight line that is long from side to side is formed between the strip 42' and the base end side of the hooking piece 2 '. In the state shown by the chain line in FIG. 8, the upper and lower edges of the opening 43 are bent back and forth to open the opening 43 for easy understanding.

  As the extraction container Y using the tea strainer bag of the third embodiment, a teapot Y having protrusions such as a spout Yb and a handle Yc is employed as shown in FIG. In order to use the tea strainer bag of the third embodiment, the tea leaves P are accommodated in the strainer bag body 1, the perforation 41 of the hook portion 4 is cut, and the opening 43 is opened (FIG. 8). 9, after the narrow strip 42 is hooked on the spout Yb spout Yb (possible with the handle Yc) as shown in FIG. 9, the tea bag-containing filter bag body 1 is dropped into the opening of the teapot Y.

  In the state of FIG. 9, the hooking portion 4 of the hooking piece 2 is hooked on the lower surface side of the spout Yb of the teapot Y, so that the filtering bag body 1 containing tea leaves does not slide down into the teapot (stable posture) Supported by).

  In the tea strainer bag according to the third embodiment, as a latching means for latching the latching piece 2 on the outer edge of the extraction container (teapot Y), a slit-like hooking part 4 ( Although the perforations 41) are formed, the hooks 4 (perforations 41) need only be perforated during the tea strainer manufacturing stage, so that the hooks 4 can be easily processed.

  In addition, since the other structure and function of the tea strainer bag of 3rd Example (FIG. 8) are the same as that of the said 1st Example, the description is used.

Fourth Embodiment of FIG. 10 The tea strainer bag of the fourth embodiment shown in FIG. 10 shows a modification of the hook portion 4 formed on the hook piece 2 in the third embodiment. In the fourth embodiment, a circular perforation 51 is formed in the hooking piece 2 as the hooking portion 5.

  The range defined by the circular perforation 51 is slightly larger than the thickness of the spout Yb or the handle Yc of the teapot Y shown in FIG. 9, and the perforation 51 is cut to the inside as shown by the chain line. By removing the cut piece 52 (reference numeral 52 '), a circular hole 53 can be formed there. In addition, the hook part 5 (perforation 51) of this 4th Example can also be formed by perforation processing in the manufacture stage of a tea strainer bag.

  In the tea strainer bag of the fourth embodiment, the perforation 51 is cut as in the third embodiment, and the hole 53 is hooked on the spout Yb or the handle Yc of the teapot Y (FIG. 9). The tea bag containing tea leaves can be supported in an extractable state.

  In addition, since the other structure and function of the tea strainer bag of 4th Example (FIG. 10) are the same as that of the said 1st Example or 3rd Example, those description is used.

The fifth embodiment of FIGS. 11 to 13 The tea strainer bag of the fifth embodiment shown in FIGS. 11 to 13 is provided on the opposite upper side portions of the opening portion 16 of the strainer bag body 1 at the lip portion of the extraction container. The hooking pieces 2 and 2 hooked on the outside are continuously formed. That is, the tea strainer bag of the fifth embodiment is one in which the retaining pieces 2 in the tea strainer bag of the first embodiment of FIGS. .

  In the fifth embodiment, each of the hooking pieces 2 and 2 is made of the same material (nonwoven fabric) as the strain bag main body 1 and is continuously formed in a rectangular shape from each upper side portion of the front material 11 and the backing material 12. In the fifth embodiment, there is no inward folding portion 18 in the first embodiment.

  Adhesive layers with release paper similar to those in the first embodiment (FIGS. 1 and 2) are provided on the outer surface sides of the respective latching pieces 2 and 2 (on the same surface side as the outer surfaces of the front material 11 and the backing material 12). 3 and 3 are attached. The remaining structure of the tea strainer bag of the fifth embodiment is the same as that of the first embodiment (FIGS. 1 and 2).

  The tea strainer bag of the fifth embodiment is used as follows. That is, after spreading the filter bag main body 1 and containing tea leaves therein, the release paper 31 is peeled off from the double-sided adhesive pieces 3 and 3 of the respective hooking pieces 2 and 2 to expose the adhesive layer 32, As shown in FIG. 13, the tea bag containing tea leaves 1 part is dropped into the extraction container (teapot) Y, and the adhesive layers 32 and 32 of the hooking pieces 2 and 2 are adhered to the outside of the container opening edge, Inject hot water into the teapot Y.

  In this state (FIG. 13), since the latching pieces 2 and 2 are bonded to the opposite positions of the container opening edge, the holding portion 17 of the filter bag main body 1 is maintained in a stable posture in a state of being largely opened. Thus, the extraction effect of the internal tea leaf extract is further improved.

14 to FIG. 15 In the tea strainer bag of the sixth embodiment of FIG. 14 to FIG. 15, the narrow tape pieces 22 are respectively formed on the outer surfaces of the front material 11 and the backing material 12 of the filter bag body 1. The hanging pieces 2 and 2 are attached.

  Each of the tape pieces 22 and 22 has an inner piece 22a and an outer piece 22b that are folded in two vertically. Each inner piece 22a, 22a is adhered relatively firmly with an adhesive layer 23 (FIG. 15) at a position closer to the upper side of the front material 11 and the backing material 12, respectively. An adhesive layer 24 is applied to the inner surface of each outer piece 22b, 22b. Usually, each outer piece 22b, 22b is bonded (exfoliated) to the outer surface of the inner piece 22a, 22a with the adhesive layer 24, respectively. ing. When the outer pieces 22b and 22b are peeled off from the inner piece 22a, the upper and lower free pieces are in a state where the base end portion is continuous with the inner piece 22a as shown by chain lines (reference numeral 22b '). In addition, there is a non-adhesive portion (knob portion) 22c having a slight length at the tip of each outer piece 22b, 22b.

  The configuration of the filter bag body 1 portion in the tea filter bag of the sixth embodiment is substantially the same as that of the first embodiment (FIGS. 1 and 2).

  And the tea strainer bag of this 6th Example (FIG. 14, FIG. 15) peels the outer pieces 22b and 22b of each tape piece (hanging piece) 22,22 from the inner piece 22a, and each said outer piece 22b. , 22b can be attached to the extraction container by adhering the adhesive layer (reference numeral 24 'in FIG. 15) to the outside of the lip of the extraction container. Also in this case, the upper sides of the strainer bag body 1 are maintained in a state of being largely opened.

  By the way, when the latching piece 2 is wide to the left and right as in, for example, the fifth embodiment of FIGS. 11 to 13, when the latching piece 2 is latched on the extraction container mouth edge (circular), There are cases where wrinkles are formed near the outer side, and it is difficult to perform the latching work. However, as in the sixth embodiment, when the latching pieces 2 and 2 are narrow tape pieces 22, The operation of adhering to the outside of the mouth edge can be easily performed.

Seventh Embodiment of FIGS. 16 to 17 The tea strainer bag of the seventh embodiment shown in FIGS. 16 to 17 shows a modification of the fifth embodiment of FIGS. In the tea strainer bag of the seventh embodiment, as the latching pieces 2 and 2, those in which both side pieces are largely cut away while leaving the center part (reference numeral 25) in the width direction by a predetermined width are adopted. In addition, the double-sided adhesive pieces 3 and 3 having a small area are attached to the hooking pieces 2 and 2 near the ends of the central projecting portions 25 and 25, respectively.

  Further, in the tea strainer bag of the seventh embodiment, the central projecting portions 25, 25 of the retaining pieces 2, 2 are not used on the outer surfaces of the front material 11 and the backing material 12 (the outer surface of the filter bag body). Narrow stop bands 26, 26 for holding in a folded state are attached respectively. Each of the retaining bands 26, 26 is a position where the folded central protrusion 25 can be inserted by a predetermined length, and both end portions of the retaining band 26 are filtered to thermally weld the side edges 14, 14 of the bag body 1. It fixes with the parts 15 and 15, and it has attached in the state which can filter the center part of a stop band, and can detach | leave from the outer surface of the bag main body 1. FIG. 16 and FIG. 17, the center protrusions 25, 25 are inserted between the stopper band 26 and the outer surface of the strainer bag main body, so that the retaining pieces 2, 2 are strained by the strainer bag body. It can be held in a state of being joined to the outer surface. In addition, each center protrusion part 25,25 can be pulled out from the stop band 26 at the time of use, respectively, and can be raised upwards so that a broken line illustration (code | symbol 25 ') may be carried out.

  In the tea strainer bag of the seventh embodiment, the left and right side portions of the latching pieces 2 and 2 are largely cut out (the width of the central projecting portion 25 is narrow). The work of hanging on the mouth edge can be easily performed. In addition, since the stopper bands 26 and 26 are provided on the front and back sides of the filter bag body 1 respectively, the central protruding portions 25 and 25 of the hooking pieces 2 and 2 are respectively held by the stopper bands 26 and 26 when not in use. And has a function of preventing the central projecting portion 25 from flickering.

In addition, in this application, the structure of the latching piece of each said Example other than each said Example can be used combining it suitably. For example,
(1) As one latching piece 2 of the first embodiment (FIGS. 1 to 5) or the second embodiment (FIGS. 6 and 7), the tape piece 22 of the sixth embodiment (FIGS. 14 and 15) is used. (Only one) or change to a shape having the central protrusion 24 (only one) of the seventh embodiment (FIGS. 16 and 17),
(2) The two latching pieces 2 and 2 of the fifth embodiment (FIGS. 11 to 13) are made of a material different from the filter bag body 1 as shown in the second embodiment (FIGS. 6 and 7). to use,
Etc. can be implemented.

It is a perspective view of the tea strainer bag of 1st Example of this application. It is the II-II expanded sectional view of FIG. It is a manufacturing-process figure of the tea strainer bag of FIG. It is an explanatory view of how to use the tea strainer bag of FIG. It is a top view of the state of FIG.4 (C). It is a perspective view of the tea strainer bag of the second embodiment of the present application. It is VII-VII expanded sectional drawing of FIG. It is a perspective view of the tea strainer bag of the third embodiment of the present application. It is a top view which shows the use condition of the tea strainer bag of FIG. It is a perspective view of the tea strainer bag of the fourth embodiment of the present application. It is a perspective view of the tea strainer bag of the fifth embodiment of the present application. It is XII-XII expanded sectional drawing of FIG. It is a top view which shows the use condition of the tea strainer bag of FIG. It is a perspective view of the tea strainer bag of the sixth embodiment of the present application. It is XV-XV expanded sectional drawing of FIG. It is a perspective view of the tea strainer bag of the seventh embodiment of the present application. It is XVII-XVII expanded sectional drawing of FIG. It is a perspective view of the conventional tea strainer bag. FIG. 19 is an explanatory diagram of how to use the tea strainer bag of FIG. 18. It is explanatory drawing when extracting a tea leaf extract from the tea strainer bag containing tea leaves of FIG. 19 (C).

Explanation of symbols

  1 is a filter bag body, 2 is a hooking piece, 3 is a double-sided adhesive layer with release paper, 4 and 5 are hooks, 11 is a front material, 12 is a backing, 13 is a bottom, 16 is an opening, 17 is A receiving portion, 21 is one end portion (adhesive portion) of a latching piece, 22 is a tape piece, 24 is a central protruding portion, 31 is a release paper, 32 is an adhesive layer, 41 is a perforation, 43 is an opening, 51 is a sewing machine Eyes, 53 are holes, P is tea leaves, Y is an extraction container (teapot), Ya is the outer surface of the lip, Yb is a spout, and Yc is a handle.

Claims (5)

While having an opening (16) on the upper side, and having a filter bag body (1) having a rectangular shape in front view with an accommodating part (17) capable of accommodating tea leaves (P) inside,
On one upper side of the opening (16), a latching piece (2) having a predetermined length that is latched outside the mouth edge of the extraction container (Y) is continuously formed.
A tea strainer characterized by that. While having an opening (16) on the upper side, and having a filter bag body (1) having a rectangular shape in front view with an accommodating part (17) capable of accommodating tea leaves (P) inside,
On both opposing upper side portions of the opening (16), hook pieces (2, 2) having a predetermined length that are hooked on the outer side of the mouth edge of the extraction container (Y) are continuously formed. ,
A tea strainer characterized by that. In the tea strainer bag according to claim 1 or 2,
The latch piece (2) is separate from the filter bag body (1), and one end portion (21) of the latch piece (2) is filtered to form the opening (16) of the bag body (1). Glued to the upper side,
A tea strainer characterized by that. In the tea strainer bag according to any one of claims 1 to 3,
An adhesive layer (3) with release paper that adheres the latching piece (2) to the outer surface (Ya) of the lip of the extraction container (Y) is attached to the outer surface side of the latching piece (2).
A tea strainer characterized by that. In the tea strainer bag according to any one of claims 1 to 3,
A slit or hole-like hook that can hook the hook piece (2) onto a spout such as a spout (Yb) or handle (Yc) of an extraction container (Y) such as a teapot. Forming part (4, 5),
A tea strainer characterized by that.

Images