JP3552092B2 - Garbage bag for draining - Google Patents

Description

[0001]
[Industrial applications]
The present invention provides a garbage collection means (garbage collection basket) that is disposed at a place for storing the rest of foods generated in a restaurant, a canteen, or a kitchen at home, for example, disposed at one corner of a washing place or below a drain outlet. The present invention relates to an improved garbage bag for draining suitable to be attached to the above.
[0002]
2. Description of the Related Art
The present applicant has provided a novel and innovative device for draining garbage bags on November 26, 1985 (Japanese Utility Model Publication No. 3-30321).
This garbage bag for draining A1 is made of "fine knitting yarn" (hereinafter referred to as "chubby knitting yarn") which is unwound after heat-setting in a state in which ultrafine thermoplastic synthetic resin fibers such as polyester and polyamide are weft-knitted. As shown in FIG. 1 (d), the knitted body is knitted into a tubular body with a stitch loop of the same size, and one end of the tubular body is closed as shown in FIG. 1 (c). It can be attached to various sizes of drainage baskets, which are very elastic and flexible, and the yarn itself that constitutes the bag, as described above, is "chair knitting". Since it is a "yarn", the space between adjacent yarns is small for dividing the size of the stitch according to the knitting roughness, and therefore the drainage garbage bag has a high ability to prevent garbage going to pass and has good drainage performance. It has become.
[0003]
However, since the above-mentioned garbage bags for draining have been developed and used exclusively for household use, they are used in restaurant kitchens that use a lot of "oil" such as tempura dishes, Chinese dishes, or Southern European dishes such as Italian dishes. In particular, when the viscosity of the oil is reduced (goes sticky) due to use, even the above-mentioned elastic stitches may become clogged, and the bag may be filled with garbage. In addition, the clogging causes garbage to overflow outside the garbage bag for draining.
[0004]
In recent years, efforts have been required to rationalize (reduce prices for) all products in a severe recession. In the case of this garbage bag for draining, it is a "disposable" product. In other words, providing at a low price even for one yen meets current social needs.
[0005]
The present invention has been made in view of such a situation, and does not impair the garbage capturing ability and can be used for business use with a large amount of oil, for a predetermined period (the period until the garbage bag is full). It is an object of the present invention to provide a garbage bag for drainage that can maintain the drainage performance of (1) and can be manufactured at low cost.
[0006]
[Means for Solving the Problems]
The garbage bag for draining according to the present invention, after heat-setting in a state where the ultrafine thermoplastic synthetic resin fibers are knitted once, knits the unraveled knitting yarn into a tubular body, and closes one end of the tubular body. In the garbage bag for draining,
At the time of knitting the cylindrical body, the stitch is appropriately adjusted at a constant yarn feeding tension by utilizing the high elasticity of the twisted knitting yarn and the bulky property of a twisted yarn twisted to such an extent that a plurality of single yarns are not separated. Each time, the loop of the stitch is enlarged.
[0007]
According to the garbage bag for drainage thus configured, the stitch becomes partially large, and this portion has a large amount of water leakage due to a large gap, and thus has high fluidity such as oil. Things are easy to gather. Moreover, even if water flows along with the slightly hardened oil or the like into the portion where the stitch becomes large, the self-deformability of the oil itself (the property capable of changing its shape) and the small knitting yarn Due to the deformability of the knitted stitch, moisture can still leak from the gap of the knitted stitch. Therefore, the water is efficiently discharged until the garbage bag for draining is filled with garbage, and the draining performance is not impaired. In addition, since this portion is also a knitted yarn and knitted with a twisted yarn composed of a large number of single yarns and has a bulky property, the size of a stitch (a stitch on a knitting structure) in the knitting process is not adjacent to the actual size. The effective gap (gap for capturing dust) between the yarns is small, so that even relatively small dust can be captured. In particular, at the beginning of use, since the amount of dust is small, the draining garbage bag does not receive much force in the direction of extending from the inside, so the gap between adjacent yarns is small. Can also be captured and recovered. Then, as the amount of trash increases as the usage time elapses, the draining garbage bag exerts a large force in the direction of extending from the inside. Since a plurality of dusts have already adhered to the inner surface portion in a multi-layered form, and each single yarn of the twisted yarn is appropriately scattered, and even if the dust is relatively small, the inner surface side has a multilayered shape. Can be collected by trash. In addition, since water and the like have high fluidity, they leak from the draining garbage bag to the outside through the gap between the multi-layered garbage and the garbage, so that high drainage performance can be maintained. In other words, from the start of use to the end of use (when the garbage bag for draining is filled with garbage), it is possible to collect small garbage while maintaining approximately the same draining performance. As a bag, it becomes an epoch-making garbage bag for draining which has conflicting performance.
[0008]
In the above-mentioned garbage bag for draining, the loops of the stitches are enlarged with regularity for each of the predetermined stitches, and the locations where the stitch loops are large are located at the same position in each knitting course, and are vertically arranged in a column in the bag body. With such a structure, the deformability of the drainage garbage bag is not irregular, and the structure is easy to set in a drainage container or the like. In particular, in this case, since the elasticity in the outer circumferential direction is increased, the structure is particularly suitable for a cylindrical garbage storage container. In the case of the garbage bag for draining, the strength in the longitudinal direction of the garbage bag for draining (the depth direction of the bag: the longitudinal direction of the bag) is also required when the upper end of the garbage bag for draining is held and discarded in a waste container or the like. Since it does not decrease so much, it becomes a garbage bag for draining that can be gripped by lowering its upper end, like the conventional one.
[0009]
Further, in the above-described draining garbage bag, the loop of the stitch is placed on the topmost position of the sinker without performing the protrusion / retreat movement of the sinker when the knitting needle moves relative to the sinker, When the stitch is increased, the above-mentioned stitch is supplied with a constant yarn feeding tension only by maximizing the use of a commercially available tubular knitting machine, that is, by removing the protrusion for engaging the sinker at the position where the stitch is to be increased. Large knitting is possible, and therefore, by simply remodeling a mass-produced cylindrical knitting machine, it is possible to implement the knitting machine at low cost with little capital investment. In addition, the elastic action at the portion where the stitch becomes large is not reduced.
[0010]
In the above-mentioned draining garbage bag, the loop of the stitch is placed at the uppermost position of the sinker without performing the protrusion / retreat movement of the sinker at the time of the relative lowering operation of the knitting needle with the knitting needle, and When the stitch is enlarged by pulling the stitch at that portion, as described above, the commercially available tubular knitting machine is used to the utmost, that is, the protrusion for engaging the sinker at the position where the stitch is to be enlarged is deleted. In addition, by removing the knitting needle of the portion arranged on the sinker, yarn can be fed at a constant yarn feeding tension, and knitting with a larger stitch can be performed. Can be implemented inexpensively by simply remodeling. In addition, the elastic action at the portion where the stitch becomes larger is not reduced.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a garbage bag for draining according to an embodiment of the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a view showing the overall configuration and actual knitting of a draining garbage bag according to the present invention and a conventional example, and FIG. 1A shows the overall configuration of a draining garbage bag according to an embodiment of the present invention. A perspective view, (b) is a knitting diagram schematically showing a knitting structure of a draining garbage bag shown in (a), and (c) is a perspective view showing an entire configuration of a draining garbage bag according to a conventional example. FIG. 2 (d) is a knitting diagram schematically showing the knitting structure of the drainage garbage bag shown in FIG. 1 (c). FIG. 2 is a knitting diagram shown in FIG. This is a tube knitting machine (circular knitting machine) for producing garbage bags.
[0012]
In FIG. 1A, A is a garbage bag for draining according to an embodiment of the present invention. The garbage bag for draining A is appropriately divided for each stitch using a cylindrical knitting machine M whose main part is shown in FIG. In this embodiment, as shown in FIG. 1B, a stitch 10 having a large stitch loop is formed for every fourth stitch. A slightly larger stitch 11 is formed between the stitches 10.
Moreover, in this embodiment, a large stitch 10, a slightly large stitch 11, and a small stitch 12 are knitted at the same position in each knitting course with regularity. Therefore, as shown in FIG. 1A, the drainage garbage bag A is knitted such that the stitches 10 to 12 form columns in the vertical direction of the bag body of the drainage garbage bag A.
In the present embodiment, twelve single yarns (monofilaments) unraveled after heat setting as a knitting yarn after ultra-fine thermoplastic synthetic resin fibers of about 8 deniers have been once knitted in a warp knitting manner and do not lightly disperse. A twisted one is used. Specifically, a "chair knitting yarn" having a thickness of about 100 denier after being twisted about 15 to 20 times for 1 m is used as a knitting yarn.
In addition, polyester fiber (or polyamide fiber) is used as a material, and "dioxin" which is a harmful gas is hardly generated at the time of incineration of garbage after disposal, that is, an environment-friendly yarn is used.
[0013]
Next, the manufacture of the garbage bag A for draining according to the above embodiment will be described.
FIG. 2A is a perspective view showing a main part of a tubular knitting machine for manufacturing the above-mentioned garbage bag A for drainage, and a cam groove 6a for engagement is formed on the bottom surface shown in FIG. When the cover 6 is removed, the sinker bed 2 is disposed above the cylinder 1 as shown in FIG. 2A or a partially enlarged view of FIG. 2 are formed radially at equal intervals on the upper surface of the cylinder 1. In this groove 2a, sinkers 3A and 3B shown in FIG. 5 and FIG. As described above. For example, in the case of this embodiment, a sinker 3A having an engaging projection 3a shown in FIG. 5 for engaging with the cam groove 6a (see FIG. 4) and a projection shown in FIG. The sinkers 3B whose portions 3a are cut off and have no protrusions are alternately arranged. However, although not shown, a configuration in which three sinkers 3A shown in FIG. 5 are continuously arranged and then one sinker 3B shown in FIG. 6 is arranged to knit a large stitch may be adopted. . Alternatively, the arrangement may be such that three sinkers 3A are arranged consecutively and then two sinkers 3B are arranged, and it is needless to say that any other arrangement structure may be adopted. Which of the above arrangements is to be determined depends on how often a large knitted stitch loop or a somewhat large knitted stitch is formed in one knitting course, that is, depending on the required drainage performance.
A knitting needle 4 shown in FIG. 7 is used as a knitting needle for knitting provided around the outer periphery of the cylinder 1. The lather needle 4 is shown in FIGS. 1 (a) and 1 (b). In the case of the garbage bag for draining according to the present embodiment, the knitting needle (spring needle 4) is not arranged in the needle groove (not shown) at the position where the sinker 3B is arranged. That is, the arrangement pattern is such that three needles 4 are successively arranged and then one is removed.
When the knitting illustrated in FIG. 1B is performed, a part of the arrangement pattern of the sinkers 3A and 3B and the arrangement pattern of the knitting needles 4 (hereinafter, this pattern is repeated) is summarized in a table. become that way. In this table, regarding the stitches, the "large stitch" 10 is represented as "large", the "slightly large stitch" 11 is represented as "medium", and the "normal stitch" 12 is represented as "small".
[0014]
According to the tubular knitting machine configured as described above, at the time of knitting, the cover 6 rotates with respect to the cylinder 1, and a yarn feeding eyelet (not shown) that rotates integrally with the cover 6, As shown in FIG. 3, the above-mentioned "chair knitting yarn" is sequentially supplied to the vertically moving knurling needles 4 (knitting needles) to perform tubular knitting. At the time of this yarn feeding, the sinker 3A engages with the cam groove 6a to retreat to the outer periphery when the yarn is fed, so that the knitting yarn is located below the nose 3c of the sinker 3A and forward of the nasal tub 3d. When the needle 4 descends in this state, the sinker 3A moves inward to hold the knitting yarn in the nasal tub 3d (see the two-dot chain line in FIG. 5). . Accordingly, a relatively small stitch 12 (indicated as “small” in FIG. 8) is formed. On the other hand, in the case of the sinker 3B, since the engaging projection 3a is not formed, the sinker 3B is always located at the position on the inner peripheral side of the cylinder 1 during knitting, and is therefore shown by the two-dot chain line in FIG. In this manner, the knitting yarn to be supplied is placed on the upper end surface of the nose 3c of the sinker 3B, that is, the uppermost position of the sinker 3B, and with the knitting yarn placed thereon, the latch needle 4 descends. Therefore, the stitch 11 slightly larger than the stitch knitted at the portion of the sinker 3A is formed.
Therefore, at the position where the sinker 3B is arranged, a stitch slightly larger than the stitch knitted at the portion of the sinker 3A can be knitted. In other words, a stitch corresponding to the “slightly larger stitch 12” described above (displayed as “medium” in FIG. 8) is knitted.
Further, in the sinker 3B at the position where the latch needle 4 has been pulled out, knitting by the knitting needle is not performed at that location, so that a stitch larger than the "relatively large stitch" is knitted. That is, a stitch corresponding to the above-described “large stitch 10” (displayed as “large” in FIG. 8) is knitted.
[0015]
By the way, in this embodiment, in any of the above states, the yarn is supplied while maintaining a constant tension.
Accordingly, in a portion knitted to a large stitch by the sinker 3B, the amount of the knitting yarn increases in proportion to the height dimension of the sinker 3B, so that the elastic force (deformability) increases. On the other hand, at the portion where the sinker 3B is arranged and the latch needle 4 is pulled out, the stitch becomes larger, but at that portion, the knitting yarn is not drawn in by the latch needle 4 and the yarn supply amount of the knitting yarn is reduced at other portions. Therefore, the elasticity (amount of deformation) is smaller than that of a portion where a slightly larger stitch is knitted by the sinker 3B.
[0016]
The tubular knitted state (cylindrical shape) knitted as described above is cut into appropriate dimensions in the longitudinal direction, one end of both ends is closed by a sewing machine, and is illustrated in FIG. It becomes a garbage bag for draining.
In the state in which the draining garbage bag shown in FIG. 1 (a) is knitted in a tubular shape, the "chair knitting yarn" made of the twisted yarn is in a state where no external force acts on the draining garbage bag (free state). In the "effective gap", which affects the dust capturing performance due to the fact that the knitting yarn itself is torn and as described above, the yarn is "twisted so as not to disperse a plurality of single yarns" Is much narrower than the gap created by the actual knitting. Specifically, according to the experiment of the present inventor, when knitting was performed under the same conditions such as the yarn tension and the amount of supplied yarn during knitting, a drainer knitted with a normal knitting yarn composed of a single yarn that was not broken was used. In the case of a garbage bag, the "effective gap" has a width of about 1 mm and a length of about 2 mm. On the other hand, when the "chair knitting yarn" is used, even the knitted portion of the large stitch has an "effective gap". The “gap” has a width of about 0.8 mm and a length of about 1 mm. In the case of a relatively large stitch and a portion where the stitch is not enlarged, the “effective gap” has a width of about 0.1 to 0.2 mm and a length of about 0.1 to 0.2 mm.
[0017]
On the other hand, when the garbage bag for draining is applied with a tensile force of about 100 g in each of the vertical direction and the horizontal direction to imitate a state in which garbage is pulled into the garbage bag for draining, the conventional type which is not inconvenient In the case of a knitting yarn, the “effective gap” expands to about 2 mm in width and about 1 mm in length,
In the case of the garbage bag A for draining according to the present embodiment, the "effective gap" has a width of about 2 to 2.5 mm and a length of about 1 to 1.5 mm even at the large stitch portion. In the case of a relatively large stitch portion, the “effective gap” has a width of about 2 to 2.5 mm and a length of about 1 to 1.5 mm. In a portion where the stitch is not enlarged, the “effective gap” has a width of about 1 mm and a length of about 0.5 mm.
[0018]
Similarly, when a tensile force of about 300 g is applied in the vertical and horizontal directions to imitate a state in which more garbage is contained in the bag, a draining garbage bag normally knitted with a normal knitting yarn is used. In the case of the above, the “effective gap” is a rectangular shape deformed in shape, about 2 mm in width and about 1 mm in length,
In the case of the garbage bag for draining according to the present embodiment, the “effective gap” is about 3.5 to 4.5 mm in width and about 1. 5 in length at the large stitch (corresponding to “large” in FIG. 8). It is about 5 to 2.5 mm. In addition, in a part of a slightly large stitch (corresponding to “medium” in FIG. 8), the “effective gap” has a width of about 1.7 to 2.2 mm and a length of about 1.7 to 2.8 mm. In a portion where the stitch is not enlarged (corresponding to “small” in FIG. 8), the “effective gap” has a width of about 1.5 to 2.0 mm and a length of about 1.5 to 2.5 mm. The gap shape is “distorted (distorted)”, and the knitting yarn is in a bulky state, and each gap shape has a different shape.
[0019]
Therefore, when actually used as a garbage bag for draining, the stitches become partially large, and the large stitches 10 and the slightly large stitches 11 have a large gap, so that the leakage resistance is small and the amount of water leakage is large. Therefore, it is easy for oil or the like having high fluidity to collect. Moreover, even if water flows along with the slightly hardened oil or the like into the portion where the stitch becomes large, the self-deformability of the oil itself (the property of being able to change its self-shape by external force) and the small knitting Due to the deformability of the stitches knitted with yarn, moisture can still leak from the gaps in the stitches. Therefore, the water is efficiently discharged until the garbage bag for draining is filled with garbage, and the draining performance is not impaired. In addition, since this knitting yarn is a fine knitting yarn and generates bulky properties after knitting with a twisted yarn composed of a large number of single yarns, as described above, the division of the size of the stitch in the knitting process involves The effective gap (gap for capturing dust) is small, so that even relatively small dust can be captured. In particular, at the beginning of use, since the amount of garbage is small, the draining garbage bag does not exert much force in the direction of extending from the inside, so the gap between adjacent yarns is small, and as a result, small garbage is also captured.・ Can be collected. Then, as the usage time elapses, the amount of garbage trapped in the stitches increases, so that the draining garbage bag exerts a large force in the direction of extending from the inside and the stitches themselves spread, but in this state. Then, since the garbage already overlaps in multiple layers like "scales" on the inner surface of the garbage bag for draining, each single yarn of the twisted yarn is appropriately scattered in the stitch loop Therefore, even relatively small dust can be collected by the multilayer dust on the inner surface side. Moreover, since water and the like have low viscosity and extremely high fluidity, they leak from the draining garbage bag to the outside through the gap between these multi-layered garbage and garbage, so that practically sufficient draining performance is still maintained. can do. On the other hand, since oil has high viscosity and low fluidity, it is trapped by the multi-layered dust already caught in the stitches.
In other words, according to the garbage bag for draining, from the start of use to the end of use (when the garbage bag for draining becomes full due to garbage), while maintaining the draining performance that does not extremely decrease, small garbage can be removed. Can also be collected, so to speak, as a draining garbage bag, it is possible to provide conflicting performance.
Also, for each predetermined stitch (every third stitch), the loops of the stitches are enlarged with regularity, and the large portions of the stitch loops are located at the same position in each knitting course, and form a vertical line in the vertical direction of the bag. If it is formed, the deformability of the garbage bag for draining will not be irregular, and the structure will be easy to set in a drain container or the like. In particular, in this case, since the elasticity in the outer circumferential direction is increased, the structure is particularly suitable for a cylindrical garbage storage container. In addition, in the case of the garbage bag for draining, the strength in the longitudinal direction (the depth direction of the bag) of the garbage bag for draining does not decrease so much even when the upper end of the garbage bag for draining is held and discarded in a waste container or the like. As in the case of the conventional one, a draining garbage bag that can be gripped by lowering the upper end portion is obtained.
[Example 2]
Next, another embodiment of the present invention will be described. That is, this embodiment relates to a draining garbage bag suitable as a larger draining garbage bag or a draining garbage bag having a higher draining load than the draining garbage bag according to the above embodiment.
[0020]
In this knitting garbage bag A, a large stitch is knitted for each stitch in each knitting course, and large stitches are formed in the same position in each course so as to form vertical columns in the vertical direction of the bag body of the garbage bag A for draining. They are common in that they are organized.
However, in this garbage bag A for draining, as a knitting yarn, each of the 12 "single" single yarns which were unwound after being heat-set in a state where a very thin thermoplastic synthetic resin fiber of about 8 denier was once warp-knitted ( Monofilament) and a 20-denier “single” untwisted lightly twisted strand so that it does not disperse lightly. Specifically, the thickness after twisting is about 15 to 20 times per meter. It has a feature in that a knitting yarn of about 120 deniers, which has become a "chunk knitting yarn" as a whole, is used.
Then, although not shown, sinkers 3A and sinkers 3B are alternately arranged using the above-described knitting yarn, and six spatula needles 4 are arranged continuously with respect to the needle groove, and one is opened and another six are continued. Or an arrangement pattern in which four lines are consecutively arranged in the needle groove and one line is opened and four lines are consecutively arranged, or a needle groove is arranged. The arrangement pattern may be such that six are arranged consecutively, two are spaced apart, and six are arranged continuously. Which of the above arrangement patterns is used is determined by the frequency of the large knitting of the stitch loop in one knitting course, that is, by the type of the desired garbage bag for draining.
[0021]
Then, according to the cylindrical knitting machine configured as described above, basically, as in the case of the first embodiment, the cover 6 rotates with respect to the cylinder 1 and rotates integrally with the cover 6. From the yarn feeding eyelet (not shown), the above-mentioned "chair knitting yarn" is sequentially supplied to the knitting needles which are provided around, and tubular knitting is performed.
[0022]
According to the garbage bag for draining manufactured by knitting the loop of the stitch even further and using a single thick yarn as the knitting yarn and sewing one end of the knitting yarn, basically the above-described operation is performed. The garbage bag has the same function and effect as that of Example 1, but is particularly suitable for being attached to garbage collection means (garbage collection basket) for business use such as a restaurant. In other words, it can store a large amount of garbage compared to home use and can withstand a large amount of outward force, and at the end of use immediately after the start of use (when the garbage bag for draining Until it becomes full, it is possible to collect small garbage while maintaining the draining performance that does not drop drastically, so it can be equipped with contradictory performance as a draining garbage bag It becomes.
[0023]
As described above, a draining garbage bag having stitches enlarged at appropriate intervals in each knitting course can be manufactured by the above-described various methods according to the present invention. That is, it is possible to manufacture a draining garbage bag in which the stitches are enlarged at the same portion in each course. However, if only the draining performance is to be ensured, a draining garbage bag in which stitches are enlarged in different portions depending on each course may be used.
By the way, as described above, if the knitting needles are arranged at appropriate intervals, when knitting is performed with a normal single yarn or twisted yarn, thread breakage is likely to occur at that portion. If only a small knitting yarn is used as a knitting yarn as in a garbage bag for use, knitting can be performed without causing any yarn breakage due to the fact that the knitting yarn itself becomes very easy to expand and contract. Therefore, even when the stitch is enlarged by the arrangement pattern from which the knurled needle is removed, the number of hands in knitting can be significantly reduced, and unmanned operation can be performed at night.
[0024]
Further, in the case of the garbage bag for draining according to the second embodiment of the present invention, the garbage bag for draining has a configuration compatible with a garbage bag for drainage having a large capacity.
[0025]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the garbage bag for draining which concerns on this invention, drainage performance for a predetermined period (period until a garbage bag is full), without impairing the garbage capture capability, and even if it is used for business use with a lot of oil. Garbage bags for draining can be provided which can be manufactured at a low cost. Therefore, even if it is used as a draining garbage bag for oily business such as an Italian restaurant or a Chinese restaurant, it can be used for a predetermined period (a period until the garbage bag becomes full) without impairing the garbage capturing ability. Draining performance can be maintained.
Needless to say, it can also be used as a household garbage bag for draining.
[Brief description of the drawings]
FIG. 1 is a diagram showing the overall configuration and actual knitting of a draining garbage bag according to the present invention and a conventional example. FIG. 1A shows the overall configuration of a draining garbage bag according to an embodiment of the present invention. (B) is a knitting diagram schematically showing the knitting structure of the draining garbage bag shown in (a), and (c) shows the entire configuration of the draining garbage bag according to the conventional example. FIG. 3D is a perspective view, and FIG. 4D is a knitting diagram schematically showing the knitting structure of the drainage garbage bag shown in FIG.
FIG. 2 (a) is a perspective view showing an external configuration of a main part of a tubular knitting machine (circular knitting machine) for knitting shown in FIG. 1 (b) and producing a garbage bag for drainage shown in FIG. 1 (a). FIG. 2B is a perspective view showing one embodiment of the arrangement pattern of the knitting needles in FIG.
FIG. 3 is a partially enlarged view showing a knitting state of the tubular knitting machine shown in FIG. 2 (a).
FIG. 4 is a bottom view showing the structure of an engagement groove formed on the bottom surface of the cover above the sinker bed and engaging with a projection for engagement of the sinker;
FIG. 5 is a side view showing one type (a type having a projection for engagement) of a sinker used in the tubular knitting machine shown in FIG. 2 (a).
FIG. 6 is a side view showing a sinker of a type different from FIG. 5 (a type having no engaging projection) used in the tubular knitting machine shown in FIG. 2 (a).
FIG. 7 is a side view showing a configuration of a knitting needle used in the tubular knitting machine shown in FIG. 2 (a).
FIG. 8 is a table showing a part of an arrangement pattern of two types of sinkers 3A and 3B and an arrangement pattern of knitting needles when the knitting shown in FIG. 1B is performed.
[Explanation of symbols]
A: Dust bag for draining
10: The stitch with the loop of the stitch enlarged

Claims (4)

After knitting the ultrafine thermoplastic synthetic resin fiber once and then heat setting, it is unraveled and knitted into a tubular body by a tubular knitting machine using a weft knitting yarn, and one end of the tubular body is closed to form a bag. In a garbage bag for draining,
When knitting the tubular body, using a twisted yarn twisted to such an extent that a plurality of single yarns composed of the twisted knitting yarn are not separated, the high stretchability of the twisted knitting yarn constituting the twisted yarn, Utilizing the bulky property of the twisted yarn, at a constant yarn feeding tension, at each stitch, at the time of the relative lowering operation of the knitting needle with respect to the sinker, the twisted yarn is positioned at the highest position of the sinker without the sinker projecting and retreating. A garbage bag for draining, characterized in that the loop of the stitch is enlarged by placing the garbage. The said knitting yarn is a twisted yarn twisted to such an extent that a plurality of single yarns made of the knitted knitting yarn and a single yarn not added thereto are added to such an extent that the knitting yarns are not separated. A garbage bag for draining according to 1. For each of the stitches, the loop of the stitch is enlarged with regularity, and the large portion of the stitch loop is located at the same position in each knitting course and is formed in a vertical line in the vertical direction of the bag body. The garbage bag for draining according to claim 1 or 2, wherein: The loop of the stitch is placed on the top position of the sinker without performing the protrusion / retreat movement of the sinker at the time of the relative lowering operation of the knitting needle with respect to the sinker, and by pulling out the knitting needle at that position, The garbage bag for draining according to any one of claims 1 to 3, wherein the stitch is enlarged.

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