阅读说明：本技术 袋状过滤器 (Pocket filter ) 是由 中野义典 于 2019-02-18 设计创作，主要内容包括：本发明提供一种袋状过滤器,其不会产生成本的上升且耐久性优于现有的袋状过滤器,因此能够减少更换频率。进而提供一种袋状过滤器,其比现有的袋状过滤器更能够捕捉细小的固形物,兼具高过滤性能和耐久性。一种袋状过滤器,其用于对包含固形物的废液进行过滤,该袋状过滤器由部分或全部使用纤维材料而得到的袋状圆编织物构成,该纤维材料在至少一部分使用了弹性纱,在袋形状的底部具有针织物进行至少双重编织而成的部位。(The present invention provides a kind of pocket filter, will not generate the rising of cost and durability is better than existing pocket filter, therefore can reduce replacement frequency.And then a kind of pocket filter is provided, tiny solid content can be more captured than existing pocket filter, has both high filtration performance and durability.A kind of pocket filter, it is used to be filtered the waste liquid comprising solid content, the pocket filter using bag-shaped round braided fabric obtained from fibrous material by partly or entirely being constituted, the fibrous material is using elastomeric yarn at least partially, in the bottom of bag shape there is knitted fabric to carry out position made of at least duplex weave.)

1. a kind of pocket filter is used to be filtered the waste liquid comprising solid content, which is characterized in that

By partly or entirely being constituted using bag-shaped round braided fabric obtained from fibrous material, which exists the pocket filter At least part has used elastomeric yarn, in the bottom of bag shape there is knitted fabric to carry out position made of at least duplex weave.

2. pocket filter as described in claim 1, wherein using composite elastic yarns at least partially.

3. pocket filter as claimed in claim 1 or 2, wherein knitted fabric carries out position made of at least duplex weave Width is 20%~100% wide range of bag.

4. a kind of pocket filter is used to be filtered the waste liquid comprising solid content, which is characterized in that

By partly or entirely being constituted using bag-shaped round braided fabric obtained from fibrous material, which exists the pocket filter At least part has used elastomeric yarn,

A part of used fibrous material is hot-melt yarn.

5. pocket filter as claimed in claim 4, wherein elastomeric yarn is hot melt elastomeric yarn.

6. pocket filter as claimed in claim 5, wherein in the covering yarn for having used hot melt elastomeric yarn at least partially.

7. pocket filter as claimed in claim 5, wherein hot melt elastomeric yarn and false twisting is being used to process at least partially The folded yarn of yarn.

8. pocket filter as claimed in claim 5, wherein the pocket filter is that hot melt elastomeric yarn and other fibers are handed over and compiled Made of knitted fabric.

9. the pocket filter as described in any one of claim 4~8, wherein after forming bag shape by knitting process It is heat-treated, thus makes hot-melt yarn welding.

Technical field

The present invention relates to pocket filters.

Background technique

All the time, it is filled using the industrial filtering that pocket filter separates the solid for including in filtering object liquid It sets and is well-known.The filter device is for example for being filtered point of the solid of the predetermined size in object liquid included or more From, the filtering object liquid be the coolant liquid being recycled in cooling, lubrication, cleaning of processing part in working equipment etc., Liquid, the solids such as cutting oil, grinding fluid, cleaning solution are made of processing powders such as chip, grounds travels (for example, see patent document 1)。

The present inventor has developed in such pocket filter using pocket filter (example made of composite elastic yarns Such as referring to patent document 2).Such pocket filter for having used composite elastic yarns has the phase until blocking Between, i.e. service life (time being able to use) long advantage.That is, due to being less likely to occur to block, the replacement with filter The low and at low cost advantage of frequency.

In such pocket filter, if can be further improved durability, being reduced more in the case where not improving cost Frequency is changed, then is more highly preferred to.Especially in pocket filter, the speed of deterioration has very big difference according to the difference at position.But It is, from the point of view of the feature of this purposes of filter, even if most of position does not deteriorate, as long as being easy to undertake the specific of load Part deteriorates, i.e., cannot reuse, it is necessary to be replaced.

As such for improving the method for intensity, it is contemplated that yarn used in making is thicker.But there is also used Braider restriction, it is difficult to improve such problems by keeping yarn thicker.

In addition, in such pocket filter, if can be more tiny to capture by further decreasing the gap of mesh Solid content, then be more highly preferred to.Especially filter according to the difference for using purpose, solid content to be captured size It is different.Therefore, it is also required to capture the filter of the particle of finer (for example, average grain diameter is 1~20 μm).

As such for improving the method for capturing ability, it is thicker that yarn used in making is considered as described above. But there is also the shapes of the crochet hook in used braider, the restriction of needle gage, it is difficult to weave thicker by yarn, thus be difficult to Improve above-mentioned problem.Accordingly, it is difficult to only be solved the above problems by the adjustment of the rugosity of used yarn or braiding tissue.

In addition, it has been known that there is various hot-melt yarns in fiber art, they are used for various purposes.For example, as it is known that there is patent The disclosed hot melt polyurethane elastomer etc. such as document 3.But so far not yet to using such hot-melt yarn to form Pocket filter studied.

Summary of the invention

Problems to be solved by the invention

In view of the foregoing, the purpose of the present invention is to provide a kind of pocket filters, will not generate the rising of cost And durability is better than existing pocket filter, therefore can reduce replacement frequency.

It is further an object that providing a kind of pocket filter, can more be caught than existing pocket filter Tiny solid content is caught, high filtration performance and durability are had both.

Means for solving the problems

The present invention relates to a kind of pocket filter, it is used to be filtered the waste liquid comprising solid content, which is characterized in that

The pocket filter using bag-shaped round braided fabric obtained from fibrous material by partly or entirely being constituted, the undulation degree Material is using elastomeric yarn at least partially, in the bottom of bag shape there is knitted fabric to carry out made of at least duplex weave Position.

Above-mentioned pocket filter is preferably using composite elastic yarns at least partially.

It is 20%~100% loose model of bag that above-mentioned knitted fabric, which carries out preferably its width of position made of at least duplex weave, It encloses.

The invention further relates to a kind of pocket filter, it is used to be filtered the waste liquid comprising solid content, feature exists In,

The pocket filter using bag-shaped round braided fabric obtained from fibrous material by partly or entirely being constituted, the undulation degree Material is using elastomeric yarn at least partially,

A part of used fibrous material is hot-melt yarn.

Above-mentioned elastomeric yarn preferably heats elastomeric yarn.

Above-mentioned pocket filter is preferably in the covering yarn for having used hot melt elastomeric yarn at least partially.

Above-mentioned pocket filter is preferably in the folded yarn for having used hot melt elastomeric yarn and false twist processing yarn at least partially.

Above-mentioned pocket filter preferably heats elastomeric yarn and other fibers hand over knitted fabric made of compiling.

Above-mentioned pocket filter, which preferably be heat-treated after forming bag shape by knitting process, keeps hot-melt yarn molten It connects.

Invention effect

The excellent in te pins of durability of first pocket filter of the invention, therefore the replacement frequency in filter device can be reduced, Thus, it is possible to facilitate cost reduction.

In addition, the second pocket filter of the invention has the good filterability that can also filter the small solid content of partial size Can, thus, it is possible to realize the raising of filter capacity.

Detailed description of the invention

Fig. 1 is the schematic diagram for showing an example of pocket filter of the invention.

Fig. 2 is the schematic diagram for showing an example of pocket filter of the invention.

Fig. 3 is the schematic diagram for showing an example of pocket filter of the invention.

Fig. 4 is the schematic diagram for showing an example of pocket filter of the invention.

Fig. 5 is the schematic diagram for showing an example of manufacturing method of pocket filter of the invention.

Specific embodiment

The present invention described further below.

First pocket filter of the invention is characterized in that in the bottom of bag shape there is knitted fabric to carry out at least dual Position made of formation.

It that is, pocket filter is vertically disposed in device, therefore include that the waste liquid of solid largely drops to bag In the bottom surface sections of shape filter.Load when landing as a result, is mainly applied to filter bottom.Also, the solid content filtered Also it is easy to be trapped in bottom.Therefore, load concentrates on the bottom of pocket filter, and result is easy to happen bad from bottom Change.That is, main part is sometimes almost without deteriorating, but only bottom is deteriorated, this becomes the service life of pocket filter The reason of reduction.In the present invention, position made of at least duplex weave is carried out for such bottom setting knitted fabric, is thus led to It crosses the intensity for improving bottom and solves the problems, such as above-mentioned.

It (is obtained using having used the fibrous material of elastomeric yarn at least partially in the present invention using bag-shaped braided fabric ) it is because having used the retractility of knitted fabric made of elastomeric yarn especially excellent, therefore the capturing ability of solid content is very Height, and even if so that mesh is deformed to make liquid be easy to lead to also by the flexible of yarn after capturing a large amount of solid content It crosses, it is not easy to the problem of generation reduces filter capacity because of the blocking of mesh.

For using some or all of used in the present invention in the fibrous material for having used elastomeric yarn at least partially Obtained from bag-shaped round braided fabric be not particularly limited, can be used by by elastomeric polyurethane fiber yarn and other fiber combinations and Composite Made of the obtained knitted fabric (A-1) of composite fibre, the knitted fabric that is obtained by the conjugate fibre using elastomer as structural unit (A-2), spandex yarn and other fibers hand over knitted fabric (A-3) made of volume etc..

More specific description is carried out to these knitted fabrics below.

(as the knitted fabric (A-1) for obtaining composite fibre made of elastomeric polyurethane fiber yarn and other fiber combinations and Composite)

Composite fibre herein is using knitted fabric made of composite yarn, which is to use elastomeric polyurethane fiber in a part Yarn and by its with obtained from other fiber combinations.Herein, it is not particularly limited as other fibers being combined, preferably makes With Fypro, silk, polyester fiber, cotton yarn, polyolefine fiber (such as polypropylene fibre, polyethylene fibre) etc..These Among, particularly preferably use polyester fiber, Fypro, most preferably with polyester fiber.Polyester fiber described herein can To enumerate the fiber being made of polyethylene terephthalate, the fiber being made of polybutylene terephthalate (PBT) etc..

It is not particularly limited as elastomeric polyurethane fiber yarn, it is most preferably with poly- from durability, intensity, cost etc. Urethane elastomeric yarn.

As detailed below, in the manufacture of pocket filter of the invention, the circle braided fabric of preferably fabricated tubular and by its Bottom is silent, thus manufactures the pocket filter.When using such manufacturing method, need to obtain the silent strong of bottom Degree.Especially silent portion forms a part of bottom, therefore is easy to undertake load when using as filter, is to easily become The broken position for dissipating the reason waited.

Complex method as composite yarn is not particularly limited, and covering yarn, elastomeric yarn and false twist processing yarn can be used Any composite yarn well known to folded yarn etc..Wherein, from intensity, processability etc., particularly preferred use passes through in elasticity Covering yarn obtained from other fibers is wound on yarn.

It is not particularly limited as the elastomeric polyurethane fiber yarn for constituting composite elastic yarns, 5~510 daniers can be used for example Elastomeric polyurethane fiber yarn.Above-mentioned lower limit is more preferably 10 daniers, and the above-mentioned upper limit is more preferably 280 daniers.

Covering yarn can be any one of single cored, double-contracting core.

More specifically, for example, it is the compound synthesis of height more than the filament number in the synthetic fibers such as polyester is fine List covering yarn (SCY22dWN70/48,50/ made of dimension (1 filament ratio 1.2dtex thinner yarn) is coated on elastomeric yarn 144,75/144,75/72 danier/radical etc.).Alternatively, it is also possible on elastomer coat 2 synthetic fibers yarn and At double-contracting heart yarn (DCY).It should be noted that as spandex fibre, it is preferable to use usual widely used elastic polyurethane Fiber, but not limited to this, such as polyester ether elastic fiber also can be used.In addition, by the way that the yarn of elastomer is closed It is covered at the yarn of fiber, can prevent from making mesh that damaged, damage occur in a short time because of processing powder.

(knitted fabric (A-2) obtained by the conjugate fibre using elastomer as structural unit)

In conjugate fibre of a part using elastomer as structural unit, there are commercially available products, these cities can be suitably used Sell product.For example, the conjugate fibre of polyamide and polyurethane, polyester and conjugate fibre of polyurethane etc..As such The conjugate type of conjugate fibre is not particularly limited, and the conjugate fibre of side-by-side type, core-sheath-type etc. can be used.As such total The commercially available products such as the Sideria (trade name) of KB Seiren company manufacture can be used in yoke fiber.

(spandex yarn and other fibers hand over knitted fabric (A-3) made of compiling)

Spandex yarn can not also be used as to above-mentioned composite yarn or conjugation yarn, and itself will be used as single thread, with other fibres Dimension carries out friendship volume.It is not particularly limited as such friendship volume method, well known any braiding tissue can be made.

(about sharing for other fibrous materials)

It, can be by elastomeric polyurethane fiber yarn and other fiber combinations and Composite in each knitted fabric of above-mentioned (A-1)~(A-3) Made of composite fibre, two or more combined as the conjugate fibre of structural unit, spandex yarn using elastomer come using can also be with Part combine other fibers come using.It is not particularly limited as other fibers, Fypro, silk, polyester can be used Fiber, cotton yarn, polyolefine fiber (such as polypropylene fibre, polyethylene fibre) etc..

Second pocket filter of the invention is by partly or entirely using in the fibre for having used hot-melt yarn at least partially Tie up the pocket filter that bag-shaped round braided fabric is constituted obtained from material, and then one in the fiber for constituting the pocket filter Part has used hot-melt yarn.

The pocket filter of the present application is by as the fibrous material partially used and making mesh for above-mentioned hot-melt yarn A part of welding thus can inhibit small solid content by mesh, to be able to achieve to not allow the offset for being also easy to produce mesh The raising of filter capacity.

As above-mentioned welding yarn, elastomeric yarn can be made to hot melt elastomeric yarn, can also will be applied in combination with elastomeric yarn Hot-melt yarn is made in part or all of fiber.From can more suitably obtain said effect aspect, particularly preferably make With hot melt elastomeric yarn.

It is not particularly limited as the hot-melt yarn that can be used in the present invention, hot melt polyurethane elasticity can be enumerated Yarn, hot melt polyester yarn, hot melt nylon yarn etc..

Be not particularly limited as above-mentioned hot melt polyurethane elastomeric yarn, preferably under damp and hot in vacuum, 80 DEG C of weldings Hot melt relay be 0.15N/dtex or more.By using such hot melt polyurethane elastomeric yarn, can obtain hot melt and Excellent heat resistance when heat setting, do not allow to be also easy to produce broken yarn, deterioration excellent in te pins of durability pocket filter.In addition, above-mentioned heat The yarn rugosity of fusibleness Polyurethane elastic yarn is preferably the range of 10~310tex.If thinner than above range, the table of weld portion Area narrows, it is possible to cannot get sufficient durability.In addition, braiding cannot be applied to sometimes if thicker than above range In the needle of machine.

As such hot melt polyurethane elastomeric yarn, Mobilon K-L, Mobilon R, Mobilon can be used RL, Mobilon RLL (trade name: Nisshinbo Textile Co., Ltd. manufacture), (trade name: Invista is public by Lycra Department) etc. commercially available products.

In addition, the elastomeric yarn of non-thermofusible can also be shared in the present invention with hot-melt yarn to use.As can do in this way The elastomeric yarn for being not belonging to hot-melt yarn used is not particularly limited, and can enumerate Polyurethane elastic yarn, polyetherester elastomer yarn etc..

In turn, in the present invention, hot-melt yarn can also will be made with the yarn that elastomeric yarn is applied in combination.In this case, as Elastomeric yarn can be used the common elastomeric yarn for being not belonging to hot-melt yarn, can also combine with hot-melt yarn.

It is not particularly limited as the hot-melt yarn that can be applied in combination with elastomeric yarn, above-mentioned hot-melt polyester can be enumerated Yarn, hot melt polyamide yarn etc..As hot melt polyamide yarn, for example, Elder (trade name, Toray manufacture) etc..

Wherein, in the case where hot-melt yarn is made in the yarn combined with elastomeric yarn, the hole in pocket filter is fixed, i.e., Make to apply physical power, hole is also not easy to expand.Therefore, although the initial stage in filtering can remove tiny solid Object, but be less likely to occur to make as blocking and moderately extending in hole in use, not allowing to be also easy to produce for a long time later With the effect in the case where hot melt elastomeric yarn.From above aspect, more preferably use hot melt elastomeric yarn as elastomeric yarn.

Second pocket filter of the invention is preferably heat-treated after the shape for forming bag-shaped round braided fabric and is generated Welding based on welding yarn.In this way, certain welding is formed between mesh, mesh will not hyper expanded.Therefore it pushes away It surveys, when filtering tiny solid content, is reduced from the leakage in the gap of mesh, effect of the invention can be obtained.

Hot-melt yarn is used for this purpose, therefore preferably in satchel part of the whole or all using at least making With the fibrous material of elastomeric yarn, satchel is integrally subjected to welding.

For being used some or all of used in the present invention obtained from the fibrous material at least having used elastomeric yarn Bag-shaped round braided fabric is not particularly limited, and can be used as by compound fibre made of elastomeric yarn and other fiber combinations and Composite It ties up obtained knitted fabric (B-1), elastomeric yarn and other fibers and hands over knitted fabric (B-2) made of volume etc..

More specific description is carried out to these knitted fabrics below.

(as the knitted fabric (B-1) for obtaining composite fibre made of elastomeric yarn and other fiber combinations and Composite)

Composite fibre herein is using knitted fabric made of composite yarn, which is to use elastomeric yarn simultaneously in a part By its with obtained from other fiber combinations.Also, in the composite yarn, hot melt is made in a part of elastomeric yarn or other fibers Yarn.

Herein, it is not particularly limited as other fibers being combined, it is preferable to use Fypro, silk, polyester Fiber, cotton yarn, polyolefine fiber (such as polypropylene fibre, polyethylene fibre) etc..It is particularly preferably fine using polyester among these Dimension, Fypro, most preferably with polyester fiber.Polyester fiber described herein can be enumerated by poly terephthalic acid second two Fiber, the fiber being made of polybutylene terephthalate (PBT) etc. that alcohol ester is constituted.

Complex method as composite yarn is not particularly limited, and can be used using hot melt elastomeric yarn as the cored of heart yarn Any composite yarn well known to folded yarn of yarn, hot melt elastomeric yarn and false twist processing yarn etc..Wherein, from intensity, processability etc. It sets out, particularly preferred use heats covering yarn as obtained from winding other fibers on hot melt elastomeric yarn.

It is not particularly limited as the hot melt polyurethane elastomeric yarn for constituting hot melt covering yarn, 5~510 denier can be used for example The hot melt polyurethane elastomeric yarn of Neil.Above-mentioned lower limit is more preferably 10 daniers, and the above-mentioned upper limit is more preferably 280 daniers.

Above-mentioned hot melt covering yarn can be any one of single cored, double-contracting core.

More specifically, for example, it is the compound synthesis of height more than the filament number in the synthetic fibers such as polyester is fine Dimension (1 filament ratio 1.2dtex thinner yarn) be coated on hot melt elastomeric yarn on made of list covering yarn (SCY22dWN70/48, 50/144,75/144,75/72 danier/radical etc.).Alternatively, it is also possible to be hot melt elastomeric yarn on coat 2 synthetic fibers Yarn made of double-contracting heart yarn (DCY).

In turn, it is constituted as fiber same as above-mentioned fiber, common elastomeric yarn can be used as elastomeric yarn, it will be into Hot-melt yarn is made in the combined fiber of row.

In turn, used whole composite yarn can be " partially using composite yarn made of hot-melt yarn ", can also with " not Use the composite yarn of hot-melt yarn " it shares to use.In the case where use " partially using composite yarn made of hot-melt yarn ", preferably The above are " partially using composite yarn made of hot-melt yarn " for 50% (conversion of composite fibre radical) of used fiber.

(elastomeric yarn and other fibers hand over knitted fabric (B-2) made of compiling)

Elastomeric yarn can not also be used as to above-mentioned composite yarn, and itself will be used as single thread, handed over other fibers It compiles.It is not particularly limited as such friendship volume method, well known any braiding tissue can be made.

It is handed in knitted fabric made of volume such, preferably partly or entirely uses hot melt elastomeric yarn as elastomeric yarn.

As hot melt elastomeric yarn, the hot melt elastomeric yarn illustrated in above-mentioned knitted fabric (B-1) can be used.

It should be noted that from the removing aspect that can well and chronically carry out tiny solid content, it is more excellent Select the knitted fabric (B-1) as obtaining composite fibre made of above-mentioned elastomeric yarn and other fiber combinations and Composite.

(being shared about with other fibrous materials)

It, can be by hot-melt yarn and other fiber combinations and Composite forms in each knitted fabric of above-mentioned (B-1)~(B-2) Composite fibre, hot-melt yarn combine two or more come using, can also partially combine other fibers come using.As other fibers Be not particularly limited, can be used Fypro, silk, polyester fiber, cotton yarn, polyolefine fiber (such as polypropylene fibre, Polyethylene fibre) etc..

(shape about pocket filter)

Fig. 1 is illustrated in by the one of the first pocket filter of the invention.As shown in Figure 1, filter of the invention has band There is the bag shape of opening portion 1.By the joint portion 4 of its bottom by the closed at one end of circle braiding, it is consequently formed bag-shaped.Also, Dual portion 3 (or triple more than part) is formed about in the bottom.

As shown in Fig. 2, end of the pocket filter with the shape near opening portion can also be formed more than dual Overlapping.Pocket filter of the invention sometimes also by by opening portion be embedded into piping in come carry out using.In this case, Opening portion is also easy to be applied load, is easy breakage, therefore can be and knitted fabric opening portion being also made more than dual Enhanced.In turn, by the way that triple above, more than quadruple structures are made, setting out in terms of making the enhancing more strength is Preferably.

The forming method of such dual above structure is not particularly limited, can be enumerated: based on using K formula to compile The method of the double knitting (ダ Block Le ニ ッ ト イ Application) of loom；It is formed behind dual portion using usual way and re-forms braiding, it will The method that such braiding is overlapped and is sewed in the form of triple portions, quadruple portion；Etc..

In turn, can also be with as shown in figure 3, be not only formed about dual portion in bottom, but also formed in entire main part Dual portion.If bottom is nearby dual portion, effect same as above-mentioned filter shown in FIG. 1 can be obtained.In turn, if entirely Main part is dual structure, then main part has also obtained the raising of durability.Therefore, the purposes of higher durability is being required In filter, by improving the ratio in dual portion, it can be further improved durability, be preferred from this respect.

Be not particularly limited for making to weave the dual width of tissue, for example, preferably bag shape width (that is, if Schematic diagram shown in FIG. 1 is then lateral width) 20%~100%.By the width for the degree, can sufficiently enhance The part of the easy breakage of bottom, is preferred from this respect.

It is bag-shaped in order to be made, it needs to carry out the engagement of knitted fabric at the joint portion 4 of bottom.Such engagement can enumerate benefit The method etc. sewed with machine.

The one of second pocket filter of the invention is illustrated in Fig. 4.It is had as shown in figure 4, filter of the invention has The bag shape of opening portion 1.By the joint portion 4 using the bottom by the closed at one end of circle braiding, bag shape is consequently formed.This The pocket filter of invention is that part or all of use has used the fibrous material of hot-melt yarn and elastomeric yarn and obtained at least partially The bag-shaped round braided fabric arrived, it is preferably whole by same fibrous material shape from the cost of flow chart, durability aspect At.In addition, can be carried out by the way that the dual above knitted fabric is made especially near the bottom for being easy to be applied load Enhancing, that is, the dual portion of the formation as shown in Figure 1 that can be such as enumerated in above-mentioned first pocket filter 3 (or it is triple more than Portion).

Fig. 2 and opening as shown in Figure 3 that second pocket filter can be enumerated such as in above-mentioned first pocket filter End near oral area also forms the dual above overlapping, not only can also be formed about dual portion in bottom, but also whole A main part forms dual portion.

The forming method of such dual above structure is not particularly limited, can enumerate with it is above-mentioned first bag-shaped The identical method of filter.

The width for keeping braiding tissue dual is not particularly limited, is bag preferably in the same manner as the first pocket filter The 20%~100% of the width (being then lateral width that is, if schematic diagram shown in FIG. 1) of shape.

It is bag-shaped in order to be made, it needs to carry out the engagement of knitted fabric at the joint portion 4 of bottom.Such engagement can pass through heat The welding of molten yarn is carried out using the suture of machine seam, the methods of sharing for they.

(oral area about pocket filter)

The shape of the opening portion 1 of pocket filter is not particularly limited, can be formed as described above more than dual Overlapping, can also be further formed wire rope handling portion.It carries out that is, opening portion is embedded into piping by pocket filter using being general Application method.Therefore, in order to which pocket filter is fixed on piping, the side in piping most commonly is tied up using rope etc. Method.

It is not particularly limited as such wire rope handling portion, such as can be such as Japanese Unexamined Patent Publication 2013- that the present inventor is completed It is recorded in 231261, keep the mesh count of weaving direction different with rope press section using bottom knit unit in braiding, is worn in formation The position bottom knit unit in rope portion and rope press section are linked not over mesh.

The tissue for forming bag structure in the wire rope handling portion formed using such method and wire rope handling portion are by braiding tissue shape At, therefore be less likely to occur to decoherence, and then during manufacturing, cost is also more cheap, is advantageous from this respect.Into one Step can also arbitrarily adjust width, the length etc. in the wire rope handling portion according to purpose.

(manufacturing method)

The manufacturing method of above-mentioned pocket filter is not particularly limited, such as the schematic diagram in Fig. 5 can be passed through Shown in following methods manufactured.

Pocket filter of the invention can use circular knitting machine and be manufactured.I.e., it is possible to be woven into tubular while holding Portion is nearby turned back, and further engages in end with main part, thus obtains dual structure.The manufacture of such dual structure can be with Pass through usual way used in double knitting (ダ Block Le イ Application ニ ッ ト イ Application) stocking blank rib-loop in K formula stocking braider Come carry out.

More specifically, for example, using as the principle of readjustment, restructuring, consolidation and improvement of socks knitting machine away from (4 inches: 400 of circular knitting machine Needle) method that bag-shaped knitted fabric is made.It should be noted that knitted fabric can weave plain weave (no decorative pattern), the wealthy volume of drawn needle Deng being woven alone or in combination.

The engagement of the main part of terminal part after fold-back can be engaged by the welding of hot-melt yarn, can pass through braiding Tissue is engaged, and be can use sewing and is engaged, the method for more than two kinds in these can also be shared.

It is and the end integration by the tubular article formed in this way that opening portion is closed, it is possible thereby to be made with bag-shaped The filter of the structure of shape.It is such that the integrated process in end can be passed through into welding, the general sewing etc. of hot-melt yarn Method carries out.

It should be noted that the first pocket filter can be by that will have the tubular article of the dual above double backed arrangement End is integrated and opening portion is closed, and bag shape, bottom, which is thus made, at least has the filtering of the dual above structure Device.

It is formed, can also be carried out in braiding latter end furthermore it is possible to carry out bottom in the braiding beginning that cylinder compiles object Bottom is formed.In any case, existing circular knitting machine can be used to be manufactured.Specifically, utilization can be passed through Dual portion is formed based on method of double knitting of K formula braider etc..

More specifically, formerly carry out the braiding in dual portion and when carrying out the braiding in dual portion again later, later again into After the braiding in the dual portion of row braiding, becomes 1 rib collar from 4 rib collars, 2 rib collars and terminating 8 segments (8 ス Network ラ ッ when weaving It プ) is incorporated into welding yarn in portion, thus prevents from decoherencing, this method is preferred as manufacturing method.

In the case where the second pocket filter, in order to further make hot melt elastomeric yarn thermal welding after braiding, carry out Heating process.Heating temperature is not particularly limited, under preferably damp and hot, vacuum, 80~125 DEG C.In addition, for carrying out this The heating of the welding of sample can carry out simultaneously in the heating in calendering process, dyeing processing etc..

(filter device)

Pocket filter of the invention can be used in bag-shaped interior using importing waste liquid by opening portion, capturing solid content In the method that portion and the method for being discharged to the outside liquid are filtered.Do not have for carrying out such filter device filtered It is particularly limited to, such as in well known filter device documented by Japanese Unexamined Patent Publication 2010-184170 can be suitably used for.