TW585947B - Filter cartridge and process for producing the same - Google Patents

Abstract

An object of the present invention is to provide a filter cartridge having a high filtering accuracy, a long filter life and a good liquid-passing property, in which an initial trapped particle diameter little changes, a pressure loss is small and neither bubbling nor falling of the filter material is observed. Such a filter cartridge is obtained by a production process, which comprises winding a non-woven fabric strip comprising a thermoplastic fiber around a perforated cylinder in a twill form, wherein a non-woven fabric strip satisfies the following equation (A): log10 Y < 3.75-0.6(log10 X), wherein X (cm<3>/cm<2>/sec) is an airflow amount of the non-woven fabric strip, and Y (g/m<2>) is a basis weight thereof; or a production process, which comprises winding in a twill form, wherein a number (W) of winding a non-woven fabric strip around a perforated cylinder from one end to the other end is one to 10 per a length of 250 mm in the perforated cylinder.

Description

585947 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the Invention (1) Field of the Invention The present invention relates to a filter element and a method for manufacturing the same, and in particular, a cylindrical filter element is used to twill non-woven fabrics containing thermoplastic fibers The tape is wound around a perforated cylinder, and has excellent liquid flow characteristics, filtration life and stable filtration accuracy, and the manufacturing method is the same. BACKGROUND OF THE INVENTION Various filters for purifying liquids have been developed and produced. Among these filters, cartridge filters (herein referred to as filter elements) are widely used in industrial fields, such as removing suspended matter in industrial liquids, removing agglomerates from agglomerate filtering equipment, and purifying industrial water. Many different filter element structures have been proposed so far. The most typical type is a reel-type reel filter element, which is a filter element made by spinning yarn as a filter material and wound around a perforated cylinder in a twill pattern. Because of its low cost and ease of production, this method has been used for a long time. Another structure is a non-woven cloth laminated furnace core. This cylindrical sprinkler core is made of a variety of non-woven fabrics, such as gradually combing the non-woven fabric and winding it continuously on a perforated cylinder. The development technology of non-woven fabrics at this stage has made some materials reach the practical stage. However, the above-mentioned filter element has many disadvantages. For example, a 'reel-wound filter element uses the fluff portion of the spun yarn and the gap between the spun yarns to capture foreign matter. The size and shape of the fluff and the gap are difficult to control. Furthermore, 'the fibers constituting the spinning thread are made of a short-fiber material', they are easily dropped when the fluid flow filter element is used. -----: --L ——- I (Please read the notes on the back before filling out this page) The size of the paper is applicable to China National Standard (CNS) A4 (210X297 mm) -4-585947 A7 _ B7 V. Description of the invention G) (Please read the notes on the back before filling this page) Furthermore, when producing spun yarns, a small amount of surface active agent is usually coated on the short-fiber material to prevent static electricity and other effects. Short fibers will stick to the spinning machine. When using a filter element made of a spinning yarn coated with a surfactant to filter liquid, the liquid will be cleaned, such as foaming of the liquid, increasing Toc (total organic carbon content) 'COD (chemical oxygen demand) and conductivity Sex, etc. cause adverse effects. In addition, for the above-mentioned spun yarns made from textile staple fibers, at least two steps are required to form the textile staple fibers. In this way, it will increase the manufacturing cost of the used yarn. The ability of the Non-woven Fabric Laminated Filter to be printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs depends on the non-woven fabric used. The main method of producing non-woven fabric tapes is to use a winder or an air-by-machine to manufacture 'if necessary, a hot air heater or hot rolling for heat treatment' or to directly produce non-woven fibers using a melt-blow method and a spun method. However, 'for any kind of non-woven fiber production machine, such as a winder, air-by-air machine' hot air heater, hot rolling, melt-blow method and spun method, the basic weight of the non-woven fabric may be uneven along the cross direction of the machine. Therefore, a low-quality filter element is manufactured. In addition, the use of more advanced technology to overcome such unevenness' sometimes results in increased manufacturing costs. Furthermore, the production of a laminated non-woven fabric filter element requires six types of non-woven fabrics, and different types of non-woven fabrics must be determined depending on the type of filter element. As a result, in some cases it will increase costs. In order to solve the problems encountered with conventional filter elements, many methods have been proposed in the past. For example, Japanese General Publication No. 6-7767 provides a filter element 'wherein the filter material is obtained by extruding a porous cone-shaped paper material during winding, and the diameter of which is tightly wound around the porous inner cylinder by extrusion is about 3 mm. This method is applicable to the Chinese national standard (CNS) A4 specification (210X297 mm) -5- 585947 A7 B7 5. The invention description $) (Please read the precautions on the back before filling this page) The advantage is that it is porous The inner cylinder faces outward, and the winding pitch can be gradually increased. However, because the filter media must be tightened, foreign matter can easily become trapped between the filter media winding gaps. For this reason, with regard to the spool-winding filter which is conventionally manufactured by the spinning method, the method of obtaining fine particles by using the fluff on the fabric is not good. Easily clogging the filter surface results in reduced filter life and reduced liquid flow characteristics. JP-A 1-1 1 5423 proposes a filter in which a cellulose spun nonwoven fabric is torn into a band shape and wound through a narrow hole on a reel having many perforations. Compared with the conventional roll paper filter, this method uses alpha cellulose to refine pulp that can bear fruit to make a filter with higher mechanical strength, but it is easy to spread in water and makes the adhesive wash out. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. However, the cellulose-spun non-woven fabric used in this filter is paper-like and has too high rigidity, similar to the spool winding filter made by the conventional spinning method. Device, poor ability to capture foreign material. Furthermore, cellulose spun nonwoven fabrics tend to swell in liquid. Swelling can cause many problems, such as reducing the strength of the filter, changing the filtration accuracy, deteriorating the fluidity of the liquid, and reducing the life of the filter. It also often causes a lot of disturbances to its adhesion mode, causing changes in filtration accuracy or fiber drop, etc., and it is difficult to achieve the desired stability. Furthermore, [P-A 4-458 1 0] proposes a filter that divides a fiber having a weight of more than 10% into a nonwoven fabric formed by dividing a fiber having a weight of less than 0.5 demer into a porous cylinder, and provides a fiber density of 0.18 to 0.30. The advantage of this method is that it can trap very small particles in the liquid. However, in order to divide the constituent fibers, high-pressure water must be used, and the fibers on the entire non-woven fabric cannot be used. -6- This paper size applies Chinese National Standard (CNS) A4 (210X297 mm) 585947 A7 B7 V. Invention Note 0) Pressurized water is evenly divided. If the division is uneven, the diameter of the captured particles on the non-woven fabric will be different, which will reduce the filtering accuracy. In addition, the stress applied during the division sometimes reduces the strength of the non-woven fabric, which reduces the strength of the filter and easily deforms during use; or changes the filter's air-hole ratio to reduce the liquid flow characteristics. Furthermore, since the strength of the non-woven fabric is reduced, it is difficult to control the tension around the punched cylinder, which makes it difficult to control the air void ratio. In addition, spun technology requires the use of easily split fibers, which increases the cost of operation and increases the cost of the filter. If the above-mentioned problem of filtering ability can be solved, the filter is suitable for the pharmaceutical industry and the electronics industry. However, for general use cases, such as the application in the filtration of swimming pool water and electroplating solution in the electroplating industry, such expensive costs cannot be adopted. The purpose of the present invention is to provide a cylindrical filter element, which has excellent liquid flow characteristics, filtration life and stable filtration accuracy. The object of the present invention is to solve the above problems. According to the results of the investigation, it was found that the filter element made of long-fiber non-woven fabric containing thermoplastic fibers wound in a perforated cylinder by means of twill winding has excellent liquid flow characteristics, filtration life and stable filtration accuracy. Description of the Conventional Technical Description of the Invention The present invention has done intensive research and found that the above problems can be solved by using a cylindrical filter element, which is made by winding a non-woven fabric tape around a perforated cylinder in a twill winding manner. Long fibers containing thermoplastic fibers This paper is sized for China National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)

、 1T printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 585947 kl ~ -------_ Ⅴ. Invention Description (5) (Please read the precautions on the back before filling this page) Non-woven fabrics or meltblown It is made of non-woven fabric, and the air flow (air permeability) has a special relationship with the basic weight; or it is made with a specific number of windings. These findings led to the invention. The composition of the present invention is as follows: π). A kind of filter element made by winding a non-woven cloth tape, comprising thermoplastic fibers wound around a perforated cylinder in a twill weave manner, wherein the non-woven cloth tape satisfies equation (A): 1 〇g丨 〇Y &lt; 3.75 — 0.6 (1 〇g 1 〇X) (a) where X (cm3 / cm2 / sec) is the air flow rate measured according to JIS L 1 096-A (1 990), And Y (g / m2) is the basis weight. (2) .—A filter element made by winding a non-woven fabric tape, which includes thermoplastic fibers wound around a perforated cylinder in a twill weave. The non-woven fabric tape satisfies equation (B): log !. Y &lt; 3.75 — 0.75 (logiGX) (B) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs where X (cm3 / cm2 / sec) is the air flow measured in accordance with JIS L 1096-A (1990), and Y ( g / m2) is the basis weight. (3) .—a filter element made by winding a non-woven fabric tape, comprising thermoplastic fibers wound in a perforated cylinder in a twill wound manner, wherein the non-woven fabric tape is wound in a twill wound manner from one end to the longitudinal direction of the perforated cylinder. The number of windings (W) at the other end is 10 turns per 250 mm. (4) The filter element according to item (3), in which the number of windings (W) 2-folded paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) -g-585947 A7 B7 V. Description of the invention (6) (2W) When approximated by an irreducible denominator with two or less digits, the mother 値 is between 4 and 40. (5) · The filter element according to any one of items (1) to (3), wherein at least ~ $ of interwoven fibers are fixed by thermal knotting. (6) The filter element according to any one of the items (1) to (3), wherein the width of the non-woven cloth meter belt is 0.5 to 40 cm. (7) The filter element according to any one of items (1) to (3), wherein the product of the width (cm) and the basic weight (g / m2) of the non-woven fabric is 10 to 200. (8) The filter element according to any one of items (1) to (3), wherein the thickness of the non-woven cloth half bucket is 0.02 to 1.20 mm. (9) · The filter element according to any one of items (1) to (3), wherein the non-woven cloth half bucket is formed by hot pressing using a hot relief roller with a relief area ratio of 5 to 25%. (10) · The filter element according to any one of items (1) to (3), wherein the air filter ratio of the filter element || material is 65 to 85%. (11) The filter element according to any one of items (1) to (3), wherein the non-woven fabric half bucket is a long-fiber non-woven fabric. (1 2) · The filter element according to item (1 1), wherein the long-fiber non-woven fabric is made by hand [j by spun method. (13) The filter element according to any one of items (1) to (3), wherein the non-woven fabric tape is a melt-blown non-woven fabric. (14) The filter element according to any one of items (1) to (3), wherein the thermoplastic fiber is composed of a low melting point resin and a high melting point resin, and the melting point difference between these resins is greater than 10 ° C. (15) The filter element according to any one of items (1) to (3), wherein the thermoplastic resin

{Please read the precautions on the back before filling in this page. J-Order the paper printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and the Consumer Cooperatives. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -9- Intellectual Property Bureau of the Ministry of Economic Affairs Printed by Employee Consumer Cooperatives 585947 A7 _ _B7___ V. Description of Invention (7) Selected from polyester, polyurethane resin, polyethylene and polypropylene. (1 6). — A kind of filter element manufacturing process, which is made by winding a non-woven fabric tape, including thermoplastic fibers wound in a perforated cylinder in a twill wound manner, wherein the non-woven fabric tape satisfies equation (A): logi〇 Y &lt; 3.75 — 0.6 (logi〇X) (A) where X (cm3 / cm2 / sec) is the air flow rate measured according to JIS L 1 096-A (1 990), and Y (g / m2) is the basic weight. (17) · —A kind of filter element manufacturing process, which is made by winding a non-woven fabric tape, including thermoplastic fibers wound around a punched cylinder in a twill pattern, wherein the non-woven fabric tape is twilled from one end along the longitudinal direction of the punched cylinder. The number of windings (W) wound to the other end is 10 turns per 250 mm. Brief description of the diagrams Figure 1 · Shows a picture of a spun nonwoven fabric. Fig. 2 shows a picture of a short-fiber nonwoven fabric. Figure 3. Equation (A) shows the relationship between air flow and weight of non-woven fabrics. Figure 5. Shows twisting a non-woven fabric tape. Fig. 6 shows the winding of a non-woven fabric tape via a back and forth movement. Figure 7 · Shows the use of non-woven fabric printing patterns to paste the external parts Figure 8 · Shows the three-dimensional drawing of the filter element of the present invention 1T0 ~ (Please read the precautions on the back before filling this page) -10 · 585947 A7 ------ B7 V. Description of the invention (8) Coding explanation 1: Long-fiber spun non-woven fabric 2: External object 3: Reel 4: Perforated cylinder 5: Horizontal back and forth guidance 6: Non-woven fabric tape and its adherend 7: Filter element 8: Adhesive printed parts using strong hot-pressing method 9: Detailed description of the preferred examples of the parts that are applied with weak hot-pressing when leaving the printing pattern are described in the embodiment of the present invention as follows. The filter element of the present invention is made by winding a non-woven cloth tape containing thermoplastic fibers on a perforated cylinder in a twill winding manner. In the present invention, the non-woven fabric tape is a non-woven fabric having a narrow width, which is made by tearing (cutting) a wide non-woven fabric or directly using a narrow width fabric. In order to obtain stable quality at low cost, it is best to tear wide non-woven fabrics. The optimal width and basis weight of non-woven fabrics are described below. In the present invention, the thermoplastic fiber refers to a fiber produced using a thermoplastic resin. The present invention can use any thermoplastic resin that can be melt-spun. For example, polyethylene resins, such as low density polyethylene, high density polyethylene, and the size of this paper are applicable to China National Standard (CNS) A4 specifications (210X297 mm) (Please read the precautions on the back before filling this page)

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 1T -11 585947 A7 B7 V. Description of the invention (9) Linear low-density polyethylene; polypropylene resins such as polypropylene and polypropylene heteropolymers (for example, containing polypropylene As the main component, mixed are two or more components of different molecular polymers such as ethylene, butene-1,4-methylpentene-l, etc .; polyolefin resins other than the above polyethylene and polypropylene; polyester resins such as polyethylene terephthalate Add polybutylene terephthalate and low-melting heteropolymer polyesters with isophthalic acids other than terephthalic acid as acid content; polyamino compound resins such as Nylon 6 and Nylon 66; and polystyrene, poly potassium potassium acid Thermoplastic resins such as ester elastomers, polyester elastomers and polytetrafluoroethylene. It is also possible to use biodegradable resins, such as functional resins such as lactic acid-based polyesters, to provide filter cartridges with natural biodegradability. Furthermore, it is best to use a polyolefin resin and a polystyrene resin that can be polymerized with a metallocene catalyst. The properties of the metallocene resin can improve the strength and chemical resistance of the nonwoven fabric, and reduce the energy required for manufacturing. In addition, these resins can be used in combination to control the non-woven fabric's thermal adhesive properties and rigidity. When using a filter element to filter room temperature aqueous liquids, it is best to use polyolefin resins such as polypropylene and polyethylene based on chemical resistance and cost considerations. When used in high temperature solutions, polyester resins and polyamino resins are best used. These thermoplastic resins can be mixed with known additives if necessary. The non-woven fabric tape used in the present invention is preferably a long-fiber non-woven fabric or a melt-blown non-woven fabric, and the manufactured filter element can reduce the occurrence of fiber dropping and filtering when mixing. For non-woven fabric tapes, the above-mentioned long-fiber non-woven fabrics can be used alone. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) Printed by the Consumer Cooperative of the Property Bureau-12- 585947 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Office of the Ministry of Economic Affairs. 5. Description of the Invention (10) Or melt-blown non-woven fabrics, or use both. In the filter element of the present invention, the melt-blown non-fibre cloth is used as the non-fibre cloth tape, which has higher density than the long-fiber non-woven cloth, and the structure is easier to be uniform. Therefore, the filtering accuracy of the filter element can be improved. The average fiber diameter of the melt-blown nonwoven fabric varies depending on the type of filter element and resin used, and is preferably from 0.5 to 1,000 // m, and preferably from 1 to 50 / i m. If the average fiber diameter is less than 0.5 // m, it is not easy to make non-woven fabrics, so the cost of the filter element will increase significantly. On the other hand, an average fiber diameter exceeding 1 000 // m will cause the fiber diameter distribution to expand and damage the structure of the non-woven fabric. Furthermore, if the average fiber diameter exceeds 50 // m, the adjacent fibers can be fused together using residual heat, but as long as the performance of the invention is not affected, this situation is not inevitable. The non-woven fiber tape used in the present invention is preferably a long-fiber non-woven fabric, and a layer of melt-blown non-woven fabric or non-woven fabric, in which at least part of the interlaced fibers are bonded by a thermal adhesive method. Among them, the interlaced fibers bonded by heat bonding are preferably long-fiber non-woven fabrics. In particular, the long-fiber nonwoven fabric is preferably produced by a spun method. The spun method is a non-woven fabric production method in which an air gun sucks thermoplastic fibers ejected from a nozzle and spreads them on a conveyor belt for thermal adhesion. Long-fiber non-woven fabrics containing thermoplastic fibers made by the spun method, the fiber direction is arranged along the machine direction, as shown in Figure 1, so that the pores formed by fiber 1 are both long and narrow, and the maximum size that can pass through particles 2 is equivalent small. On the contrary, the short-fiber non-woven fabric obtained by carding method has a fixed fiber direction, as shown in Figure 2, so that the pores formed by fiber 1 look round or square (please read the precautions on the back before filling this page)

、 1T This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X 297mm) -13 · 585947 A7 B7 5. Description of the invention (n) shape, even if the two methods use the same fiber diameter and porosity, it can be adopted The maximum size of the particles 2 is larger than the long-fiber non-woven fabric made by the spun method. In the present invention, as long as it does not affect the fiber life, liquid flow characteristics, and the function of preventing substances from detaching from the filter element, fibers other than thermoplastic fibers, such as cotton, glass fibers and metal fibers, can be combined into a non-woven fabric belt structure fiber . For the non-woven fabric tape of the filter element made in the first embodiment of the present invention, the intersecting fibers are adhered together, and the air flow rate X (cm3 / cm2 / sec) and the basic weight Y (g) measured by the ns L 1 096-A method are used. / m2) satisfies the following formula (A) 10 g 丨 〇 Y &lt; 3 · 75 — 0 · 6 (10 g 1 〇X) (A) The present invention adopts a twill winding method to wind a non-woven fabric tape around a hole The filter element made on the cylinder shows excellent filtration accuracy. The relationship of equation (A) is shown in Figure 3. Equation (A) is shown in the shaded area of Fig. 3 to show the relationship between the basic weight range and the air flow rate of the non-woven fabric. When there is no relationship between the air flow and the basic weight in the shaded area, it means that the basic weight is too large, and the non-woven fabric belt is too rigid, so it is not easy to wind the non-woven fabric belt around the perforated cylinder, which will reduce the filtration of the filter element. Precision. If the present invention is made of spunbond, in which the non-woven fabric is directly made of formed fibers, the filter element thus produced can reduce the risk of the fibers detaching during filtration and mixing into the filtering solution. Moreover, the cost is relatively low. _ This paper size applies to China National Standard (CNS) A4 specification (210X297 public director) '-14-(Please read the precautions on the back before filling out this page), 11 Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives, Printing Wisdom of the Ministry of Economic Affairs Printed by the Property Cooperative Consumer Cooperative 585947 A7 __B7_ V. Description of the Invention (12) In the second embodiment of the present invention, the 'non-woven fabric tape is a long-fiber non-woven fabric, and the air flow rate X (cm3 / cm2 / sec) and the basic The weight Y (g / m2) satisfies the following formula (B) logi〇Y &lt; 3.75-0.75 (logiOX) (B) Next, a method of winding a non-woven fabric tape around a punched cylinder will be explained. One process example is shown in Figure 4. A perforated cylinder 4 having a diameter of about 10 to 40 mm and a length of 100 to 100 mm is mounted on the spool 3. The non-woven fabric tape 6 guides 5 holes back and forth through the yarn channel and the winding line, and is wound and punched on the cylinder once or twice. The perforated cylinder is thermally knotted at the end of the non-woven fabric tape so as to be accurately wound on the tape. The yarn channel of the reel is flat with the reel: line: The horizontal reciprocating guide 5 device is configured to vibrate longitudinally in an oblique manner, and the reel is rotated to make the non-woven fabric tape wound around the punched cylinder i in an oblique manner to make Filter element 7. The diameter of the hole arranged on the transverse reciprocating guide 5 varies with the basic weight and width of the non-woven fabric tape, and its range preferably falls between 3 and 10 mm. If the diameter is less than 3mm, it will increase the friction between the non-woven fabric tape and the hole and make the winding tension excessive. On the other hand, if 値 λ is less than 10 mm, the aggregate size of the non-woven fabric may be unstable. Lateral reciprocating guide bow 丨 5 A variety of lateral guides with narrow holes can be used. For example, circular, stomach, and flat designs can be used. Furthermore, a design in which a dagger gap is provided at one end of the narrow hole can also be adopted. The function of the punched cylinder is to serve as the mandrel of the filter element. As far as its material is concerned, R must be able to withstand the external pressure applied and the pressure loss will not be too high. 210X297 mm) ------ 1T ------ ^-^ ― (Please read the notes on the back before filling this page) -15- 585947 A7 B7 ____ V. Description of the invention (13) Restrictions. For example, injection molding technology used in conventional filter elements can be used to inject polyethylene or polypropylene into a net-shaped cylinder, or it can be made of ceramic or stainless steel in a similar manner. For other methods, a perforated cylinder can be made by a folding process or a non-woven fabric. The winding conditions are set according to the production conditions of the conventional spool-wound filter element. For example, the start speed of the spool can be set to 1000 to 200 (hpm), and the feed speed can be controlled to apply a certain tension when winding the non-woven fabric. The porosity of the filter element can be adjusted by the tension. On the other hand, this non- The woven cloth tape can be twisted before being wound. One of the process examples is shown in Figure 5. In this example, the winding machine used to make the wind-up reel filter element can be used as the winding machine. Through twisting ' The thickness of the non-woven fabric is significantly increased, so the size of the through hole on the transverse reciprocating guide 5 is preferably larger than the size used in the example of Figure 4. By twisting the non-woven fabric, the non-woven can be changed according to the number of twists or the twist tension per unit length The air hole rate of the cloth can control the filtering accuracy. In this example, the number of twists of the non-woven fabric belt is preferably between 50 and 1,000 times per meter. If the number is less than 50 times, the twist benefit is almost impossible to obtain On the other hand, if the number of times exceeds 1,000 times, the liquid flow characteristics of the filter element will become very low. Before winding on the perforated cylinder, it is best to use various methods to Concentration of woven cloth tapes. This method involves focusing the non-woven cloth tapes through small holes, or pre-forming the non-woven cloth tapes with a folding forming guide in advance, and then passing them through the small holes to produce discount materials. Use the latter Can control the ratio of the lateral guide and the lateral movement speed to the reel speed to change the winding pattern, so that Shi can use the same non-woven fabric tape to make filters with different properties. The paper size is applicable to China National Standard (CNS) Α4 size (210X297)鏖) (Please read the notes on the back before filling this page)

Printed by 1T Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs -16- A7

585947 V. Description of the invention (14) Core. In one embodiment of the process, a non-woven fabric is passed through a small hole to focus the belt, as shown in FIG. 6. Meanwhile, in this example, a winding machine used for manufacturing a conventional spool winding filter element can be used as the winding machine. In Fig. 6, the 5 holes of the horizontal reciprocating guide are changed into small holes to gather the non-woven fabric tape, but a small hole guide can be provided on the yarn channel in front of the horizontal reciprocating guide 5. The diameter of the small hole varies with the basic weight and width of the non-woven fabric tape, and its range preferably falls between 3 and 10 mm. If the diameter is less than 3mm, it will increase the friction between the non-woven fabric tape and the small hole and make the winding tension excessive. On the other hand, if the 値 is larger than 1 Omm, the bundle size of the non-woven fabric becomes unstable. Furthermore, when making the above-mentioned bundled nonwoven fabric tape, granular activated carbon or ion exchange resin can be used as long as the benefits of the present invention are not impaired. In this example, in order to fix the granular activated carbon or ion exchange resin, the activated carbon or ion exchange resin can be glued together with an appropriate adhesive before or after the non-woven fabric is bundled or folded, or after being added in advance Heat again and stick together with the fibers of the non-woven fabric. The yarn channel of the winding machine is actuated by a transverse cam arranged in parallel with the winding drum to generate an oblique winding swing, and a non-woven fabric tape is wound around the punched cylinder with the oblique winding swing. The winding conditions are set according to the production conditions of the conventional spool winding filter element. For example, the start speed of the spool can be set to 1000 to 2000 rpm, and the feed speed can be controlled to apply a certain tension when winding the non-woven fabric. The porosity of the filter element can be adjusted by tension. Furthermore, controlling the winding tension makes the air void ratio of the inner layer small when winding the non-woven fabric, while the air void ratio of the middle layer to the outer layer gradually increases. In particular, the first (Please read the notes on the back before filling out this page)

1, 1T line Ministry of Economics Intellectual Property Bureau employee consumer cooperatives printed this paper scale applicable to Chinese National Standards (CNS) A4 specifications (210 × 297 mm) -17- 585947 A7 __ B7 V. Description of the invention (15) forming a folded non-woven When the cloth tape is wound around and then punched on the cylinder, the difference in the thickness and density of the outer layer, the middle layer and the inner layer can be provided, which can provide a filter element with an ideal filtering structure. The filtering accuracy can be changed by controlling the ratio of the lateral speed of the transverse cam to the speed of the spool. Therefore, when the non-woven fabric tape is wound from one end of the punched cylinder to the other end in the longitudinal direction, the winding of the non-woven fabric tape can be changed. Number (here, the number of windings is represented by W). That is, the number of windings refers to the number of times the reel 3 rotates when the lateral reciprocating guide 5 moves from one end of the punching cylinder 4 to the other in the longitudinal direction. Therefore, W does not need to be an integer. The number of windings must be quite accurate, so the lateral guide movement distance must be matched with the number of winding drums so that the number of windings does not deviate too much. In the filter element of the present invention, the number of windings W is 1 to 10 turns per 250 mm perforated cylinder length, preferably 2 to 8 turns, and more preferably 3 to 5 turns. If 値 is less than 1, the crossing angle is too large, and the non-woven fabric tape is easily detached from the punched cylinder. On the other hand, if the 値 exceeds 10, the crossing angle is too small, and the non-woven fabric tape is also easily detached from the punched cylinder. Furthermore, if 値 is not in the range of 1 to 10, the diameter of the initial trapped particles becomes quite large, which results in an inappropriate filter element. For a winding filter using a spun yarn as a filter material, the relationship between the number of windings and the filtering accuracy is very clear. In the conventional spinning yarn winding filter, the wound yarn (i.e., the spinning yarn) generally has a circular cross section, and the yarn diameter is at most about 3 mm. In this way, the relationship between the number of yarn windings and the spacing distance during oblique weaving can be expressed by the following formulas (1) and (2): This paper size applies the Chinese National Standard (CNS) Α4 specification (210 × 297 mm) (Please read the precautions on the back first (Fill in this page again), ιτ Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-18- 585947 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (16) 2 XW = 2 X Wo + l / N (1) N = T / W0 / P (2) where W is the number of windings; w. Is an integer close to the number of windings W; N is the number in order; T is the width in the transverse direction; P is the distance between yarns. In the above variables, W. And N are natural numbers, and W, P, and T are arbitrary positive numbers. Generally, as the yarn separation distance becomes smaller, a more precise winding filter is produced. This method can be applied to yarns other than spun yarns, such as split yarns. On the other hand, in the filter element of the present invention, a non-woven cloth tape is used as a filter material in place of the spun yarn, and therefore equations (1) and (2) are not applicable. Since the non-woven fabric is bundled and wound as described above, the thickness of the yarn is considerably larger than that of the conventional spinning yarn. Therefore, even if the conditions of equations (1) and (2) are satisfied, the yarns are stacked together and a precise filter element cannot be obtained. As in the third embodiment of the present invention, we find that when the denominator Mn is specified by the approximate number of windings generated by equation (3), the non-woven fabric tape is wound around the punched cylinder in a diagonal weaving manner. The filter element shows superior filtering ability. 2 X W X / Mn (3) where X / Mn represents an irreducible fraction, X and Mη are independent natural numbers, and η represents a maximum number of digits, for example, M2 represents an integer from 1 to 99. In the present invention, when the number of windings (W) 2-folding 値 (2W) is expressed by having an irreducible denominator with two digits or less, M2 in equation (3), the paper size applies the Chinese national standard (CNS) A4 specification (210X29 * 7mm) -19- -------------- 1T ------ (Please read the precautions on the back before filling this page) 585947 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (17) That is, the denominator 値 is between 4 and 40, preferably 5 to 20. When M2 値 becomes larger, a more precise filter element structure can be obtained. If 値 is less than 4, the resulting filter element structure is too rough, so the end face of the filter element is not smooth. On the other hand, if M2 値 exceeds 40, the structure of the filter element is too precise ', which is likely to reduce the liquid flow characteristics and shorten the filter life. In this example, the point is that 2W is approximately a fraction of a natural number with a denominator of two or less digits. For example, when the number of turns is 1.893, 2XW is 3.7 86. This 3.7 86 is close to a single-digit fraction, which is 3 and 4/5 (this represents a mixed fraction consisting of 3 and 4/5). Therefore, when the number of windings is 1.893, use! It is 5, which is the denominator part of 3 and 4/5. Similarly, when the approximate denominator of 2W is a fraction of two digits or less, its 値 is 3 and 11/14, so M2 is 14, which is the denominator part of 3 and 11/14. Similarly, when the approximate denominator of 2W is a fraction with less than three digits, its 値 is 3 and 393/500, so ^ is 500. Therefore, in this example, when taking a fraction with a denominator below two digits for approximation, M2 値 in equation (3) is 14. When 2W is approximated by a fraction with a double-digit denominator, 3 and 22/28 and 3 and 33/42 are the same. But these numbers can be reduced to 3 and 11/14, so ^ is 14 in this example. The above-mentioned M2 値 varies from 4 to 40, so even if the same non-woven fabric tape is used, it is possible to produce filter elements with different accuracy. Furthermore, different designs can be made based on variations in the width, basis weight, or fiber diameter of the non-woven fabric tape. Non-woven fabrics can be wound according to M2 specific reeds until the main diameter reaches the fixed diameter, and then different winding methods can be changed, so as to achieve the best filter element depth -------- ^-IΦ ------ 1T ------ ^ # 1 (Please read the notes on the back before filling in this page) This paper size is applicable to the Chinese National Standard (CNS) M specification (21〇297297) -20- 585947 A7 B7 V. Description of the invention (18) Layer filtering structure. In the filter element of the present invention ', a non-woven fabric tape is wound around the punched cylinder 2 to form a filter element having a main diameter 1.5 to 3 times that of the punched cylinder. Even if the same number of windings are wound, the pitch of the non-woven fabric tape 6 can be changed according to the main diameter of the punched cylinder 4. The main diameter of the punching cylinder 4 is usually determined according to the use situation, and the filtering capacity is not controlled by the main diameter of the punching cylinder 4. If the number of windings is the same, when the main diameter of the perforated cylinder 4 increases, the initial particle diameter captured by the filter element becomes smaller. The diameter of the long fibers used in the long-fiber non-woven fabrics varies according to the use of the filter element and the type of resin, and it is preferably between 5 and 680 // m. If the fiber diameter exceeds 680 // m, there is no difference between a bundle of strands made from continuous yarns and a long-fiber non-woven fabric. On the other hand, even if the fiber diameter is less than 5 // m, the resulting long-fiber non-woven fabric can also be used to make filter elements. However, when long-fiber non-woven fabrics are produced by the above-mentioned spun method (referred to here as spun non-woven fabrics), when the spun method is used to weave fibers with a fiber diameter less than 5 # m, the production efficiency is reduced and the actual. The fiber diameter is preferably 9 to 1 505 // m. In the filter element of the present invention, the non-woven fabric tape can be made by laminating long-fiber non-woven fabrics or melt-blown non-woven fabrics. In this example, the advantages of long-fiber nonwoven fabric and melt-blown nonwoven fabric can be used at the same time. The image capture capacity of the filter element is greatly affected by the diameter of the fiber diameter of the non-woven fabric melt blown, and it is especially important to pay attention to the production of high-precision filter elements. The stacking rule is not specifically limited. Fibers produced by melt-blown non-woven fabrics and long-fiber non-woven fabrics can be produced in different steps, and then this paper size applies the Chinese National Standard (CNS) A4 specification (210 × 297 mm) (please read the note on the back first) (Fill in this page again)

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs of the Ministry of Economic Affairs of the People's Republic of China-21-585947 A7 B7 V. Description of the invention (19) (Please read the precautions on the back before filling this page} The two overlap, or directly blow the fiber Fiber non-woven fabrics or long fiber nets are laminated. Examples of fiber bonding of laminated non-woven fabrics include: two layers of melt-blown fiber / long fiber, three-layer structure of long fiber / melt-blown fiber / long fiber, and melt-blown fiber / Meltblown fiber / long fiber three-layer structure, in which the two meltblown fiber layers have different fiber diameters. In the present invention, spinning with different cross sections can be used. Since the amount of particulates captured increases with the surface area of the fiber, Compared with the circular cross-section fiber, it can provide the same liquid flow characteristics and high precision of the filter element. In the present invention, the thermoplastic resin used to produce the thermoplastic fiber can be mixed with a hydrophilic resin such as polyvinyl alcohol or the surface of a non-woven fabric tape. Plasma treatment is implemented so that the liquid circulation characteristics can be improved when filtering the aqueous liquid with the filter element. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in the present invention, Thermoplastic fibers are best used for bonding cross fibers when making non-woven fabrics. This method includes thermocompression bonding, using hot relief rolling and hot flat rolling equipment; and using thermal cycle burst type, air heating type, And infrared heater type or vertical thermal blow type heat treatment equipment. Among these methods, it is best to use the hot embossed roll method, because it can improve the productivity of non-woven fabrics, provide good productivity and reduce costs. As shown in Fig. 7, the non-woven fabric produced by the hot-relief rolling method has a part 8 where a strong hot-pressing adhesion is applied using a relief pattern, and a weak hot-pressing adhesion is only performed for the part 9 using the relief pattern to derail. A lot of foreign matter 2 can be captured in the part 8, and only a part of the foreign matter 2 can be captured in the part 9. The remaining foreign matter will move to the next layer through the long-fiber non-woven part. Good still has this deep filtration. The paper size is applicable to Chinese National Standard (CNS) A4 specifications (210X297 mm) -22 · 585947 A7 B7-* ------ --- V. Description of the invention (20) (Please read the notes on the back before filling out this page} Structure. In this example, the embossing area is preferably between 5% and 25%. This area is $ 5 The lower limit of% can strengthen the filtering effect of the parts 8 and 9, and the upper limit of 25% can control the rigidity of the non-woven fabric so that it is not too high. Moreover, a part of foreign substances are allowed to pass through the non-woven fabric belt. Composite fibers include low-melt resin and high-melt resin. When the non-woven fabric belt is composed of fibers, the melting point difference is preferably more than 10 ° c, and even more than i 5 C. The melting point difference of more than 10 ° c can be stable to non- Thermal adhesion characteristics of woven fabric interwoven fibers. For resins without melting points, the starting flow temperature is defined as the melting point. When the filtration pressure and liquid flow rate increase, performing stable thermal adhesion in the interwoven fibers of non-woven fabric tapes allows only a small part of the interwoven fibers to be interwoven. The particles captured by the fibers pass through the filter element and reduce deformation of the filter element. Furthermore, even if the material contained in the filtrate causes damage to the fibers, stable thermal adhesion can reduce the chance of the fibers falling. The above-mentioned composite fibers may be of a parallel type or a sheath-core type, and at least a surface portion of the fiber must contain a low-melting resin. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs For composite fibers produced by combining low-melting resins and high-melting resins, as long as the melting point difference exceeds 10 ° C or higher, preferably 15 ° C or higher, including linear low-density polymer Ethylene / polypropylene, high-density polyethylene / polypropylene, low-density polyethylene / polypropylene, propylene heteropolymers with other alpha-olefins / polypropylene, linear low-density polyethylene / high-density polyethylene, low-density polyethylene / High-density polyethylene, various polyethylene / thermoplastic polyester, polypropylene / thermoplastic polyester, heteropolymer low-melting thermoplastic polyester / thermoplastic polyester, various polyethylene / resistant dragon 6, polypropylene / resistant dragon 6, resistant to dragon 6 / Nylon 66 and Nylon 6 / Thermoplastic polyester. Among these composite resins, because of the non-woven fabric manufacturing process, the paper size applies the Chinese National Standard (CNS) A4 specification (210X25) 7 mm) -23- 585947

(Please read the notes on the back before filling this page.) During the interwoven fiber adhesion step, the rigidity and air tightness of the non-woven fabric belt can be stably controlled. The linear low density polyethylene / polypropylene combination is the best. When the filter element is used to filter high temperature liquids, it is best to use low melting polyester / polyethylene

Urephthalate combined with isophthalic acid to produce polyester through isomolecular polymerization. In the present invention, as long as the utility of the present invention is not impaired, fibers other than thermoplastic fibers may be contained in the non-woven fabric tape. Fibers other than these thermoplastic fibers include nylon, cupra, cotton, linen, paper, and carbon. The content of thermoplastic fibers needs to be at least 30% by weight and can be as high as 100%. If the weight is less than 30%, the strength of the non-woven fabric will decrease when the heat-bonding method is used and the air-heating method is used to heat-bond the fiber, so that the fiber may fall and mix with the solution when it is too thick. As for the non-woven fabric used for manufacturing the filter element of the present invention, for example, the non-woven fabric tape can be made by directly controlling the textile width, but it is better to cut the non-woven fabric into a tape. 5 ～ 40cm。 Printed by the Consumers ’Cooperative of the 4th Bureau of the Ministry of Economic Affairs ’s consumer cooperative. If the width is less than 0.5cm, when the non-woven fabric is torn into a tape, the non-woven fabric tape is likely to be broken, and at the same time, it is difficult to control the tension around the punched cylinder in a twill manner. Furthermore, when the filter element having the same air void ratio is manufactured, the winding time is increased to reduce the productivity. On the other hand, if the width exceeds 40 cm, the friction force on the spinning channel of the winding machine with lateral guidance will increase, and the size of the gathered non-woven fabric will be irregular. The basis weight of the non-woven fabric tape, that is, the weight per unit area of the non-woven fabric, is preferably 5 to 200 g / m2. If 値 is less than 5 g / m2, the fiber amount is -24- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (21〇'〆297 mm) 585947 A7 B7 V. Description of the invention (22) (Please read the Note: Please fill in this page again) to reduce the uniformity and strength of non-woven fabrics, or to make intertwined fibers difficult to knot intermittently. On the other hand, when the basis weight exceeds 200 g / m2, the rigidity of the non-woven fabric is increased too much, making it difficult for the fibers to be wound around the punched cylinder in a twill-wound manner in the subsequent stages. The upper limit of the width of the non-woven fabric tape varies with the basic weight, and the product of the width of the non-woven fabric tape (cm) and the basic weight (g / m2) is preferably from 10 to 200 cm * g / m2.値 greater than 200 will cause the rigidity of non-woven fabrics to increase rapidly, making it difficult for the fibers to be wound around the perforated columns in a twill-wound manner in subsequent stages. Furthermore, the non-woven fabric becomes too thick at the time of convergence, making it difficult to entangle densely. On the other hand, if the product is less than 10, the non-woven fabric is at risk of breaking. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In the present invention, the thickness of the non-woven fabric tape is from 0.02 to 1.2 mm, preferably from 0.05 to 0.9 mm. If the thickness of the non-woven fabric tape is less than 0.02mm, the strength of the non-woven fabric is reduced, and the non-woven fabric is likely to break when the non-woven fabric is wound around the punched cylinder during the manufacturing of the filter element. On the other hand, if the thickness of the non-woven fabric tape exceeds 1.20 mm, the rigidity may become too large, so that the non-woven fabric tape cannot be easily wound densely around the punched cylinder in a twill winding manner. The above method is used to wind the non-woven fabric tape and make it into the shape of a filter element. The method can be used to make a filter element or stick a foamed polyethylene pad having a thickness of about 3 mm to the end surface of the filter element to improve the adhesion to the outer wall. In the filter element of the present invention, a split fiber may also be used as the non-woven fabric tape fiber. However, since it is actually difficult to divide the fibers evenly into split fibers, as mentioned above, it is best to use a meltblown paper with similar average fiber diameter. The paper size is applicable to China National Standard (CNS) A4 (210X297). -25 -585947 A7

Non-woven fabrics. (Please read the precautions on the back before filling this page.) When combining with hydrophilic resins such as polyvinyl alcohol to form cloth material resin or plasma treatment on the surface, the filter element can increase the liquid flowability of water-soluble filter liquid. Therefore, it is best to use a filter element made of this resin when filtering water-soluble liquids. In the present invention, the porosity of the completed filter element is preferably in the range of 65 to 85%. When the 値 is less than 65%, the fiber density is too high, reducing the fluidity. Conversely, when 値 is greater than 85%, the strength of the filter element will be reduced, and at the same time, the valley will easily cause the furnace core to deform under pressure. Providing dents or perforations on non-woven fabric tapes improves fluid flow. In this example, the number of dents of the non-woven fabric is preferably from 5 to 100 cm per 10 cm, and the perforated area is preferably from 10 to 80%. The number of times the nonwoven fabric tape is wound can be used to control the filtering ability, or it can be wound together with other spinning yarns. When the non-woven fabric tape is wound in a reciprocating manner, a wide non-woven fabric can be wound into layers' so that when making a filter element having a coarse precision, the particle flow diameter can be controlled in this way. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Wrapping high-precision non-woven fabric on the inner layer of the filter element and low-quality non-woven fabric on the outer layer can increase the filter life. In this example, the precision of the outer layer is 2 to 8 times lower than that of the inner layer. Furthermore, wrapping a wider non-woven fabric on the inner layer of the filter element and a narrower non-woven fabric on the outer layer can also increase the filter life. In this example, the width of the inner non-woven fabric tape is preferably 1.5 to 10 times the width of the outer layer. Other methods to improve the life of the filter include winding a non-woven fabric with a high basis weight on the inner layer and winding a non-woven fabric with a small basis weight on the outer layer, and winding a non-woven fabric with a small twist on the inner layer and applying it at this paper scale. China National Standard (CNS) A4 specification (210X297 mm) -26- 585947 A7 ____B7 V. Description of the invention (24) Non-woven fabrics with large twists on the outer layer. The basic weight of the inner nonwoven fabric is preferably 2 to 10 times that of the outer layer, and the amount of twist of the outer nonwoven fabric is preferably 2 to 10 times that of the inner layer. The above method can form the dense and dense structure of the filter element and improve the filtering life of the filter element. In the present invention, it is preferable that the end surface of the filter element is flattened by a thermal adhesive method 'to form flat end seals at both ends of the filter element and improve the sealing characteristics. The non-woven fabric tape constituting both ends of the filter element is melted by means of heat, solvent, ultrasonic, etc., and formed into a flat end surface after cooling and solidification. Since the present invention uses a non-woven fabric tape containing thermoplastic fibers, it is preferable to use a heating method. Examples With reference to examples and comparative examples, the present invention is described in detail below, but the present invention is not limited by these examples. In the corresponding examples, the physical properties and filtering capabilities of the filters can be improved by using the methods described below. Winding machine and the number of windings The reciprocating width (moving width) of the winding machine is 250mm, of which the diameter of Figure 5 is 5mm. The start speed of the spool is set to 1 500rpm. The number of windings (W), that is, by controlling the reciprocating motion of the transverse reciprocating guide and the rotary motion of the punching cylinder by a plurality of gears with an appropriate number of teeth to control the winding of the non-woven fabric tape from one end of the punching cylinder to the other end. The basic weight and thickness of non-woven fabrics, cutting area 625cm2 (Examples 1 to 15 and Comparative Examples 1 to 5) or (Please read the precautions on the back before filling this page) Order the paper size printed by the Intellectual Property Bureau Staff Consumer Cooperatives Applicable to China National Standard (CNS) A4 specification (210X297 mm) -27- 585947 A7 B7 V. Description of the invention (25) 500cm2 non-woven fabric and weight. The weight is converted to a defined basis weight per square meter. Next, randomly take 10 points on the cut non-woven fabric (Examples 1 to 15 and Comparative Examples 1 to 5) or 12 points (Examples 16 to 25 and Comparative Examples 6 to 9) to measure the thickness and exclude the maximum 値And the minimum value is 8 points (Examples 1 to 15 and Comparative Examples 1 to 5) or 10 points (Examples 16 to 25 and Comparative Examples 6 to 9) and averaged to define the thickness of the non-woven fabric. The thickness of each point was measured using a "Digithickness Tester (trade name)" machine manufactured by Toyo Seiki Seisaku-Sho under a load of 196 Pa and a measurement speed of 2 mm / sec. Non-woven fabric fiber diameter Five points were randomly sampled from the non-woven fabric and scanned using an electron microscope. Randomly select 20 fibers per point to measure the fiber diameter, and define its average value as the fiber diameter (# m) of the non-woven fabric. Air flow was measured according to Japan] IS L 1 096-A (1 990) method. When the air flow exceeds 790 c m3 / c m2 / s e c, reduce the measurement area of the test sample. Cavity ratio of filter element Measure the outer diameter, inner diameter, length and weight of the filter element. Use the following formula to determine the void ratio. In order to determine the porosity of the perforated cylinder and the filter material itself, the outer diameter of the perforated cylinder is taken as the inner diameter of the filter material, and the total weight of the filter element is subtracted from the perforated cylinder weight as the weight of the filter material: Applicable to China National Standard (CNS) Α4 specification (210 × 297 mm) (Please read the precautions on the back before filling this page)

Printed by 1T Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs -28- 585947 A7

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (appearance volume of filter material) = {(outer diameter of filter material) 2 — (inner diameter of filter material) 2 丨 / 4 X 7Γ X (length of filter material); (true volume of filter material) ) = (Weight of German material) / (density of filter material material); (cavity of filter material) = {丨 ~ (true volume of filter material) / (appearance volume of filter material)} χ 100 (%). Ancestor particle capture diameter, initial pressure loss and filter life Fix the filter element on the jacket of the filter performance cycle tester, and introduce water as a cycle to control the flow rate at 30 dm3 / min with the pump. Set the pressure difference between the inlet and outlet of the filter element at this time as the initial pressure loss. Next, use category 8 JIS Z 890 1 (1 995) to test powder 1 (abbreviated to JIS category 8; intermediate diameter: 6.6 to 8.6 // 111) with 7 identical powders (abbreviated to category 137); intermediate diameter: 27 to 31 // m) made into powder blocks with a weight ratio of 1: 1, and continuously added at a rate of 0.4 g per minute (examples 1 to 15 and comparative examples 1 to 5), or use] IS 7 kinds It was continuously added at a rate of 0.2 g per minute (Examples 16 to 25 and Comparative Examples 6 to 9), and the original solution and the filtered solution were sampled 5 minutes after the addition. Both solutions were diluted to the appropriate concentration, and the number of particles in each solution was measured using a light-blocking particle detector to calculate the initial particle capture benefit. Furthermore, the obtained 値 is interpolated to determine the particle diameter at 80% capture efficiency. Continue adding powder blocks until the filter element pressure loss reaches 0.2 MPa, and again sample the original solution and the filtered and after solution to determine the particle capture diameter. The time it takes to start adding powder until the pressure loss reaches 0.2 MPa is defined as the filter life. When the pressure difference 尙 does not reach 0.2 MPa ', if the filter life reaches 1,000 minutes, it stops here. -------- i ^ · ------ IT ------ (Please read the notes on the back before filling out this page) This paper size applies to China National Standard (CNS) A4 specifications ( 21〇X: 297 mm) -29- 585947 A7 _____B7_ V. Description of the invention (27) Bubbles and fibers falling from the initial filtrate Fix the filter element on the jacket of the filter performance cycle tester, pass ion exchange water, and use the pump The flow rate was controlled at 10,000 cm3 per minute. Take an initial filtrate of 1000 cm3, pour 25 cm3 into a colorimetric bottle and shake vigorously, and observe the foaming situation for 10 seconds after the stirring stops. When the bubble volume (from the liquid surface to the top of the bubble) is more than 10 cm3, the difference is judged and represented by the symbol "C"; when the bubble volume is less than 10 cm3, it is judged to be medium and represented by the symbol "B"; and when the diameter is observed If the number of air bubbles above 1 mm is less than 5, it is judged to be good and is represented by the symbol "A". Next, 500 cm3 of the initial filtrate was passed through a nitrocellulose filter with 0.8 // m to judge that the fibers had fallen. When the number of fibers with a length of more than 1 mm per cm2 of the filter paper is 4 or more, the difference is judged and the symbol "C" is judged; the number 1 to 3 is judged to be medium and the symbol "B" is judged; when the number is 0, Judgment is good and is indicated by the symbol "A". Deformation of the filter element The filter element is fixed on the outer casing of the filter performance cycle tester, and water is introduced for circulation, and the flow rate is controlled at 30 dm3 / min by using a pump. Take a picture of the appearance of the filter. Add nS category 7 until the pressure loss before and after the jacket reaches 0.5 MPa. Then, when the pressure loss before and after the jacket reaches 0.5 MPa, take a picture of the filter element under the same conditions (object distance, magnification, etc.). The image analysis was used to measure the outer diameter of the filter element before and after the two photos to determine the percentage shrinkage. A shrinkage of less than 10% is judged to be good and is indicated by the symbol "A", a shrinkage of between 10% and 20% is judged to be moderate and indicated by the symbol "B", and a shrinkage of more than 20% is judged to be poor and indicated by the symbol "C". This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) '(Please read the notes on the back before filling this page) Order printed by the Intellectual Property Bureau of the Ministry of Economic Affairs's Consumer Cooperatives 585947 A 7 B7 V. Description of the invention (28) Example 1 Polypropylene melt-blown non-woven fabric with a basis weight of 50 g / m2, a thickness of 0.8 mm, and a fiber diameter of 82 // m, in which the interwoven fibers are heated by rotating waste heat and 140 cm3 / Cm2 / seC air flow. Knot. The punched cylinder is formed by injection molding of polypropylene, and has an inner diameter of 30 mm, an outer diameter of 34 mm, and a length of 250 mm, and has 180 holes of 6 mm2. The melt-blown nonwoven fabric was torn into a nonwoven fabric tape having a width of 2.5 cm. The cloth tape is collected through the reciprocating holes of the winding machine and wound around the punched cylinder with a winding number of 4.426 until the outer diameter reaches 62 mm to obtain a columnar thick core 7 as shown in FIG. 8. Example 2 Except that the polypropylene melt-blown non-woven fabric used has a basic weight of 20 g / m2, a thickness of 0.2 mm, and a fiber diameter of 3 # m, the same columnar filter element as in Example 1 is used, in which the interwoven fibers use the waste heat of rotation And 38 cm3 / cm2 / sec air flow for thermal junction. Compared with the filter element described in Example 1, the filter element has higher filtering accuracy. Example 3 The same polypropylene as in Example 2 was used to melt blown non-woven fabric, and spun a basic weight of 20 g / m2, a thickness of 0.2 mm and a fiber diameter of 1 8 // m at an air flow rate of 560 cm3 / cm2 / sec. Long acrylic fiber non-woven fabric. The melt-blown non-woven fabric and the spun long fiber non-woven fabric were laminated, and the interwoven fibers were thermally entangled with a hot embossing roll at a thermal adhesion area ratio of 13%. Except for the non-woven cloth, the paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page)

、 1T Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and printed by the 8th Industrial Cooperative Cooperative 585947 A7 B7 V. Description of the invention (29) The material is made into a 5 cm wide non-woven fabric tape. Way to produce a columnar filter. Compared with the filter element described in Example 2, this filter element has almost the same filtration accuracy and superior filter life. Example 4 Hot-embossed rolls are used to thermally entangle interwoven fibers at an air flow rate of 490 cm3 / cm2 / sec at a 13% thermal adhesion area ratio. The spun basic weight is 20g / m2, the thickness is 0.19mm, and the fiber diameter is 18 // m. Long polypropylene fiber non-woven fabric. The same punched cylinder as in Example 1 was used. The spun long-fiber non-woven fabric was cut into a 5 cm wide non-woven fabric tape. The cloth tape does not pass through the convergence. Using a spinning machine, the number of windings is set to 4.429, and it is wound on a punched cylinder until the outer diameter reaches 62 mm to obtain a cylindrical filter element. Example 5 Use the same non-woven fabric tape and punched cylinder as in Example 1. Converge the non-woven fabric tape through the transverse reciprocating holes on the threading machine. It was wound on a punched cylinder under the same conditions as in Example 4 to obtain a filter element. Compared to Example 5, this filter element has lower filtration accuracy, better liquid flow characteristics and longer service life. Example 6 A filter element was produced in the same manner as in Example 5 except that the material was changed from a spun long fiber nonwoven fabric to a polyethylene terephthalate resin. This filter element and the filter element described in Example 5 show almost the same filtering energy. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) --------- Shame ----- 1T-- ---- ^ # 1 (Please read the precautions on the back before filling this page) -32 · 585947 A7 _B7_ V. Description of the invention (30). (Please read the precautions on the back before filling this page} Example 7 Except changing the material from spun long fiber non-woven fabric to Nylon 66, use the same method to make a filter element. This filter element is the same as that described in Example 5. The filter element shows almost the same filtering ability. Example 8 Except the use of high density polyethylene as the low melting point component and polypropylene as the high melting point component and a weight ratio of 5: 5, the sheath-core composite fiber is used as the spun long fiber non-woven fabric fiber. Except for the structure, the filter element is manufactured in the same manner as in Example 5. This filter element has better accuracy than the filter element described in Example 5, and has excellent stability in terms of filtration accuracy. The particle diameter and initial capture captured at 0.2 Pa There is little change in the diameter of the particles. Example 9 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, except that linear low-density polypropylene is used as the low-melting point component of the sheath-core composite fiber. The filter is made in the same manner as in Example 8. .Compared to Example 8, this furnace core has the same furnace accuracy, but has better liquid circulation Example 10 In addition to the heat-bonding method of interlaced fibers by hot-pressing using hot-embossed rolls, the paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) ~ '-Consumption by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative 585947 A7 ____B7_ V. Description of the invention (31) In addition to the heat treatment method using a hot air circulation type, the filter element is manufactured in the same manner as in Example 9. Compared to Example 9, this filter element has a lower filtering accuracy. Example 11 A filter element was made in the same manner as in Example 5 except that the long-fiber non-woven fabric was cut into a width of 1 cm and the number of windings became 3.476. This filter element showed almost the same filtering ability as the filter element described in Example 5. However, The time required for winding is longer than that of Example 2. Example 12 Except that the long-fiber non-woven cloth is cut into a width of 9 cm and the number of windings becomes 3.714, the filter element is manufactured in the same manner as in Example 1 1. Compared to Example 1 1 The filter element described, this filter element has a lower filtering accuracy and is caused by the extremely thick material of the non-woven cloth belt. Except that the fiber diameter of the woven cloth belt was changed to 40 // m, the filter element was manufactured in the same manner as in Example 5. Compared with the filter element described in Example 5, this filter element has a lower filtering accuracy. Example 1 4 The basic weight of the non-woven fabric tape was changed to 44g / m2, and the filter element was made in the same manner as in Example 5. Compared to the filter paper described in Example 5, the paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) ) ~ -------------- IT ------ (Please read the precautions on the back before filling this page) 585947 A7 _______B7 V. Description of the invention (32) Element, this filter element Has lower filtering accuracy. (Please read the precautions on the back before filling in this page) Example 1 5 Except changing the convergence action of the non-woven fabric tape to twice i per meter, make the filter element in the same way as in Example 5. This filter element has almost the same filtering capacity as that described in Example 12. Comparative Example 1 A filter element was manufactured in the same manner as in Example 2 except that a polypropylene spinning thread made of a fiber with a diameter of 22 // m was used instead of the non-woven fabric tape. The initial trapped particle diameter of this filter element is larger than the filter element described in Example 5 and is almost the same as the filter element described in Example 12. However, compared to the filter element described in Example 12, this filter element has worse liquid flow characteristics and shorter filter life. Furthermore, foaming and fiber dropping were observed in the initial filtrate. Comparative Example 2 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, except that the filter paper No. 1 described in JIS P 380 1 (1 995) was used and cut into a 5 cm width to replace the non-woven fabric tape. Filter element. The initial particle diameter of this filter element was smaller than that of the filter element described in Example 5, but the particle diameter after the pressure increase increased significantly. In addition, the filter has a very short life and the filter material can be observed in the filtrate ° Comparative Example 3 -35- This paper size applies to China National Standard (CNS) A4 (210X 297 mm) Wisdom of the Ministry of Economic Affairs Printed by the Consumer Cooperative of the Property Bureau 585947 A7 B7__ V. Description of the invention (33) Will be divided into eight parts with a fiber diameter of 25 // m 'short fibers containing polypropylene and high-density polyethylene are woven with a carding machine' and will be The net-woven material is used for fiber division and high-pressure water treatment is used for fiber tangling to obtain a staple fiber non-woven fabric with a basis weight of 22 g / m2. This non-woven fabric was observed under an electron microscope and image analysis was performed, showing that 50% of the total fiber weight was divided into fibers with a diameter of 9 // m. A filter element was produced in the same manner as in Example 5 except that the above-mentioned non-woven fabric was cut to a width of 5 cm to replace the non-woven fabric tape. The initial trapped particle diameter of this filter element is smaller than that described in Example 5, but the particle diameter captured at 0.2 MPa is larger. Furthermore, a few bubbles were generated in the initial filtrate and fiber dropping was observed. Comparative Example 4 Except for polypropylene melt-blown non-woven fabric with a basis weight of 100 g / m2, a thickness of 1.5 mm, and a fiber diameter of 1 40 // m, the interwoven fibers are thermally bonded using rotational waste heat and 1400 cm3 / cm2 / sec air flow. Except that, a filter element was produced in the same manner as in Example 11. Since it is difficult to closely wrap this non-woven fabric around a perforated cylinder, it is impossible to measure the filtration accuracy. Comparative Example 5 Except for polypropylene melt-blown non-woven fabric with a basis weight of 140 g / m2, a thickness of 0.5 mm, and a fiber diameter of 90 μm, the interwoven fibers are thermally bonded using rotating waste heat and 600 cm3 / cm2 / sec air flow. Except that, a filter element was produced in the same manner as in Example 11. Similar to the case of Comparative Example 4, this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 cm); IT ^ 1 ~ (Please read the precautions on the back before filling this page} -36- 585947 A7 B7 V. Description of the Invention (34) It is difficult to densely wind the non-woven fabric around the perforated cylinder, so it is impossible to measure the filtration accuracy. (Please read the precautions on the back before filling this page) Comparative Example 6 Using heat The embossed roll is' compressed with an air flow rate of 1000 cm3 / cm2 / sec at 13% of the heat-adhesion area to interweave the interwoven fibers' spun basis weight 9 0 g / m2 'thickness 0.80mm and fiber diameter 80 // m polypropylene Spun long-fiber non-woven fabric. Cut the spun long-fiber non-woven fabric into a 5 cm wide non-woven fabric tape. Use the same perforated cylinder as in Example 1. The fabric tapes are collected through the reciprocating reciprocating holes of the winder and wound. The number is set to 4.429, wound on a punched cylinder until the outer diameter reaches 62mm to obtain a cylindrical filter element, as shown in Figure 8. This example can not satisfy Equation (A) and Equation (B). Compared to Example 4, it has initial trapped particles High accuracy of diameter 7 // m, This filter element initially captured particles with a diameter of 〇3 # m, which proves that it cannot capture fine particles. Comparative Example 7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, using thermal relief light pressure, at an air flow of 3000 cm3 / cm2 / sec Polyester spun long-fiber non-woven fabrics with a basic weight of 50 g / m2, a thickness of 0.86 mm, and a fiber diameter of 500 // m were entangled by thermocompression interweaving fibers at a thermal adhesion area ratio of 13%. The non-woven fabric is cut into a 5cm wide non-woven fabric tape. The same perforated cylinder is used as in Example 1. The fabric tape is collected through the reciprocating hole of the horizontal rewinding machine, the number of windings is set to 4.429, and it is wound on the perforated cylinder until the outer diameter reaches 62mm to obtain a cylindrical filter element, as shown in Figure 8. This example can not meet the equation (A) and equation (B). Compared with Example 4, the paper size has an initial capture paper size applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) ) -37- 585947 A7 B7 V. Description of the invention (35) High precision of catching particles with diameter of 7 // m. This filter element initially captures particles with a diameter of 3 49 vm, proving that it cannot capture fine particles. (Please read the back Please fill in this page for further information.) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-38- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) 585947 A7 B7 V. Description of invention (36) Wisdom of the Ministry of Economic Affairs Printing example of employees' cooperative of property bureau 1-inch PP 18 spun embossed 20 5 0.19 490 A 壊 ^ § 〇〇 ^ &lt; &lt; 〇cn tg + position—OO ~ Converged 81 8 0.025 9 30 AA Converged 80 8 0.025 9 20 AA f—Η PP 82 Melt-blown residual heat 50 2.5 0.8 1400 A Converged 78 80 0.001 80 &gt; 1000 AA 8 00 醅 ^ t # ε &lt; fe b chain_ls 1 * 1 QQ s 琚 枳 lai is following ling ling ling 柃 嫉 嫉 嫉 哉 以! With _ W Si ： Coding ^ jil m ^ _Zhiyi · § m ^ r § II m ^ h ^ Ling 蹿 lai tong j £ 蹿I ’m going to take a look at it, I ’m going to take it, I ’m going to choose it, and I ’m going to choose it. ” Applicable to China National Standard (CNS) A4 specification (210X297 mm) -39- 585947 A7 B7 V. Description of invention (37 printed by employee consumer cooperative of Intellectual Property Bureau of Ministry of Economic Affairs «Ei-handed paradigm billion ω early double. ο 〇1- ON LLDPE / PP 18 Spinning! Embossing 20 5 0.19 470 A Converging 80 12 0.002 12 220 AA 〇〇loofii ^ Ol〇2〇 &lt; Converging 80 12 0.003 12 220 AA Nylon 66 16 Spinning Embossing 20 5 0.23 580 A 1-II_2§ &lt; &PET; PET 15 spun embossed 20 5 0.27 600 A 1- 8 〇〇Input ^ _ ε -ε &lt; rate-Lang μ ° 1t \ fe _ 怪 系 _ s | _lTiple Cui Biji_] us The punishment of the Yue system is based on the creation of ε ^ ㈣ m ^ | g staphylococcus.s g hanging gUKg ε dishes; Guoyi Beta Box Tantalum® ϋ m ^ hmg 梅 赖 _ ^ 蹿 Avoid _ baht 宓 g Yun Yun g enrollment-r -------- i ^ · ------ IT ------ 00— (Please read the precautions on the back before filling this page) This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) -40-585947 A7 B7 V. Description of invention (38 employees of the Bureau of Intellectual Property, Ministry of Economic Affairs Example of a CN printed by a consumer cooperative 1-inch 丨 PP 18 spun relief 44 2.5 0.39 260 A 1- ^ §22§ &lt; &lt; m τ—Η Convergence 82 30 0.001 30 &gt; 1000 AA CN 22 1 2 § &lt; &lt; PP 18 spun relief 20 1 0.19 490 A | g-| -2 &lt; &lt; 8 CO g Bi ~ J ^ Ife = _ ε &lt; Lo-Lang M ° 1ΤΑ Seven: _chain key _ s 1 _ι title system is the side of the sect, Uf, Fujian, Jihu, ww ft to create a snail a ^ -jgl _ from g. Drama ^ M $ Negotiable. 1 ^ m quinoa S tantalum fenfe ^ ^ ^ 1ft 雒 _ 蹿 个 MU go 骓 拎 irrigation 拎 dawn_ Gong Ba: S g outfit is parrot black! 宓 运 运 S black! Ii—ii- r (please read the notes on the back before filling this page) The paper size of the booklet is applicable to China National Standard (CNS) A4 (210X297 mm) -41-585947 A7 B7 V. Description of the invention (39 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs § ^ Example un PP 90 Melt-blown residual heat 140 1 0.5 600 C Convergence inch PP 140 Melt-blown residual heat 100 1 1.5 1400 C Converged HDPE / PP 9 (fiber blending) (high pressure Water) 22 5 0.2 150 A Convergence 77 10 0.010 13 80 BC CN1 (filter paper) cellulose 90 1.5 0.2 壊 P ^ &lt; U 〇r ™ Η (spinning) PP 76 18 0.005 22 280 CCC / D input ^ t # ε -g &lt; 銮 _ a lang μ ° 1κ # b _chain ti_ s 1 _ dance 鹱 _ bismuth change_ u螺 螺 m ^ 蛔 蕤 蛔 .s 魆Gown gliKg ε gH m ^ h ^ Following 蹿 Lai Yan 1 £ 蹿 澉 (Please read the precautions on the back before filling this page)

、 1T This paper size applies Chinese National Standard (CNS) A4 specification (210 × 297 mm) -42- 585947 Α7 Β7 V. Description of invention (40) Example 16 (Please read the precautions on the back before filling this page) Use of spun Non-woven polypropylene long-fiber fabric is manufactured by the method. The heat-entangled fiber was entangled by the heat-embossing method using heat-embossing rollers. Non-woven fabrics have a basic weight of 22g / m2, a thickness of 200 // m, and an average fiber diameter of 17 # m. The long-fiber non-woven fabric was cut into a width of 50 mm to make a non-woven tape. In addition, injection-molded polypropylene was used, which had an inner diameter of 30mm, an outer diameter of 34mm, and a length of 250mm, and was provided with 180 punched cylinders with 6mm square holes. The winding number (W) of the winder is set to 3.1 875 (in this example, M2 is 8 in Equation 3). The non-woven fabric tape was guided by a reciprocating reciprocating guide in a transverse direction to be gathered and wound on a punched cylinder until the outer diameter reached 60 mm to obtain a cylindrical filter element. The two end surfaces are heated and welded with a hot plate with a surface temperature of 17 5 ° C for 5 seconds to form a columnar filter element, as shown in Figure 8. There is no blistering or falling of the filter media, and the pressure loss is very small, so the excellent quality of the filter element can be guaranteed. Examples 1 to 2 1 In addition to setting the number of windings (W) to 3.2778 (Example 17), 3.2917 (Example 18), 3.3847 (Example 19), 3 · 4 1 1 8 (Example 20) and the intellectual property of the Ministry of Economic Affairs Except for the printing of 3 · 1 8 8 5 (Example 2 1), employees of the Bureau used the same method as in Example 16 and the same non-woven fabric tape and perforated cylinder to make the filter element. When the number of windings (W) 2_ fold 値 (2W) is approximately the denominator (Md is a fraction of two digits or less, the denominators are 9, 12, 13, 17, and 61. When these filter elements have large At M 2, the diameter of the initial captured particles becomes smaller. Therefore, M 2 値 is related to the diameter of the initial captured particles. When the approximate denominator (M3) of 2W is a three-digit fraction or less, the diameter of the initial captured particles does not vary with The denominator (M3) is proportional to the size of the paper. The paper size applies the Chinese National Standard (CNS) A4 specification (210 × 297 mm) -43- 585947 A7 _B7 5. The invention description (41) is less. For example, the M of example 20 is better than that of example 21 Large, but the initial trapped particle diameter of Example 21 is small. It is proved that the initial trapped particle diameter does not increase proportionally with the number of windings W. Compared to other filters, the filter of Example 21 has a considerable pressure loss and Slightly poor liquid flow characteristics. Examples 22 and 23 Except that the width of the non-woven fabric tape was changed to 2 cm (Example 22) or 3 cm (Example 23), a columnar filter element was produced in the same manner as in Example 19. Compared to The filter element described in Example 19, 24 Except using melt-blown non-woven fabric with an average fiber diameter of 2 // m, a basis weight of 22 g / m2, and a width of 5 cm as a non-woven fabric tape, a columnar filter element was produced in the same manner as in Example 19. Compared to The filter element described in Example 丨 9 This filter element has a small initial trapped particle diameter. Example 25 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). Laminated non-woven fabrics made by thermocompression bonding are used as non-woven fabric tapes, which include three types of non-woven fabrics: polypropylene long-fiber non-woven fabrics with a basis weight of 5 g / m2 and a fineness of 2dex using the spun method, with an average fiber diameter of 2 # m, basic weight 22g / m2, melt-blown non-woven fabric with a width of 5cm, and polypropylene long-fiber non-woven fabric with a basis weight of 5g / m2 and a fineness of 2dex using a spun method. In addition, other The same method is used to make a columnar filter element. Compared to Example 19, this filter element has

-44- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 585947 A7 B7 V. Description of the invention (42) Lower initial trapped particle diameter. Comparative Example 8 Polypropylene staple fibers with a fineness of 2dex, a cross-section length of 51mm, and a number of crimps of 14 were formed using a conventional melt-spinning technique and spun into a spun yarn. The number of windings (W) was set to 3.2252, and the spun yarn was wound on the same perforated cylinder as in Example 16 to obtain a filter element. The two end surfaces were welded by a hot plate with a surface temperature of 1 75 ° C for 5 seconds to form a columnar filter element. This filter element has an uneven end face and poor end face sealing characteristics. The initial trapped particle diameter was between Examples 19 and 20, but compared with Examples 19 and 20, it had larger pressure loss and poor liquid flow characteristics. In addition, foaming and filter media fiber dropping were observed in the filtrate, so it was not suitable as a filter element. Comparative Example 9 A filter element was manufactured using the same method and material as in Example} 6 except that the number of windings (W) was changed to 0.65 38. Non-woven fabric tapes are easily detached from the filter element and are therefore unsuitable as a filter element. Comparative Example 1 〇 A filter was made using the same method and material as in Example 1 except that the number of windings (w) was changed to 1 0 · 1 9 2 3. Non-woven fabric tapes are easily detached from the filter element and are therefore unsuitable as a filter element. Comparative Example 11 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 771 ^^-IT, ^ ~ (Please read the precautions on the back before filling this page) 585947 A7 B7 V. Description of the invention (43 ) ~ &quot; &quot; Use short fibers as the fiber structure of the non-woven fabric belt, including polypropylene and local currency polyethene 'fiber cross section can be divided into 8 parts, with a fineness of 2dtex and a fiber length of 64mm. This split short fiber was woven with a card machine, and the woven material was rolled with a hot embossing roll to produce a non-woven fabric. The non-woven fabric was treated twice with a water-jet device, and the fibers were divided into non-woven fabrics with a basic weight of 22 g / m2 and a thickness of 210 // m. This non-woven fabric was cut into a width of 50 mm to make a non-woven fabric tape. Furthermore, the winding number (w) of the winding machine is set to 3.1 875 (in this example, M2 is 8 in equation (3)). The non-woven fabric tape is gathered through the transverse reciprocating guide hole of the winding machine, and is wound around the punched cylinder until the outer diameter reaches 60 mm to obtain a cylindrical filter element. The two end surfaces were welded by a hot plate with a surface temperature of 1 75 ° C for 5 seconds to form a columnar filter element. Compared with Example 16, this filter element has lower filtering and filtering accuracy. Less foaming and falling of filter media were found in the filtrate and large pressure loss. In addition, the filter element is easily deformed, so special attention must be paid to high-pressure use. Comparative Example 1 2 The same polypropylene spun long fiber nonwoven fabric as in Example 16 was used. This fiber was divided into a 5 cm wide non-woven fabric tape. Use the same punched cylinder as in Example 16. The tape is gathered through the transverse reciprocating guide holes on the winding machine and wound around a punching cylinder. The number of winding machines is set to 0.8077 until the outer diameter reaches 62 mm to obtain a cylindrical filter element, as shown in FIG. 8. Compared with the filter element with an initial capture particle diameter of 59 // m in Example 16, this filter element initially captures a particle diameter of 300 // m, which proves that it cannot capture fine particles. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling out this page} Order printed by the Intellectual Property Bureau of the Ministry of Economy's Consumer Cooperatives -46- 585947 A7 ____B7 V. Invention Explanation (44) Comparative Example 1 3 The same polypropylene spun long fiber non-woven fabric as in Example 16 was used. This fiber was divided into a 5 cm wide non-woven fabric tape. The same perforated cylinder as in Example 16 was used. The tape is gathered through the transverse reciprocating guide holes on the winding machine and wound around a punching cylinder, and the number of winding machines is set to 1 0.038 1 until the outer diameter reaches 62 mm to obtain a cylindrical filter element, as shown in Figure 8. Compared to In Example 16, a filter element with an initial particle diameter of 5 9 // m was captured. The initial particle diameter of this filter element is 500 μm, which proves that it cannot capture fine particles. (Please read the precautions on the back before filling out this page) Wisdom of the Ministry of Economy Printed by the Consumer Affairs Cooperative of the Property Bureau -47- This paper size applies to the Chinese National Standard (CNS) A4 (210X297 mm) 585947 A7 B7 V. Description of Invention (45 Member of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperatives. Basic weight g / cm2 Csl CO C &lt; 1 csi CO CNl CNl Csl CNl CO csi Oi Csl csi CN CN cn 1 CN Csl Οί CN CN 03 Width cm uo un wn un un VO vn cn 〇vn un wn Non-woven cloth oo 00 GO Ln 00 00 lc CO SMS spun yarn GO 00 split yarn 〇〇On CN i H inch CO oo cn cn un inch VO inch un inch 5 cn cn On CN OO cn τ—H oo yi ^ |! 6 and 3/8 | 6 and 5/9 6 and 7/12 6 and 347/451 6 and 691/839 6 and 118/313 6 and 347/451 6 and 347/451 6 and 347/451 6 and 347/451 6 and 168/373! 1 and 255/829 20 and 5/13 6 and 3/8 oo ON mm cn CO m cn m cn oo p π _ 6 and 3/8 6 and 5/9 6 and 7 / 12 6 and 10/13 6 and 14/17 6 and 23/61 6 and 10/13 6 and 10/13 6 and 10/13 6 and 1 (V13 6 and 9/20 1 and 4/13 1 20 and 5/13 6 and 3/8 3.1875 3.2778 3.2917 3.3847 I 3.4118 1 3.1885 1 3.3847 1 3.3847 3.3847 | 3.3847 | 3.2252 0.6538 _1 10.1923 3.1875 Example 16 Example 17 Example 18 Example 19 Example 20 Example 21 Example 22 Example 23 Example 24 Example 25 Comparison 25 Example 8 Comparison Example 9 1 Comparison Example 10 Compare Example 11 ^^ 跃 # 初 11 ^ _! 1 # Bismuth helmet 8 mist ^ Linglai Basis sisi Gong Ling Lingshu Bismuth Equipment: W ^ —Ια—. · ^ Order line. ^ V ~ (Please read first Note on the back, please fill in this page again.) This paper size applies Chinese National Standard (CNS) Α4 size (210X 297 mm) -48- 585947 A7 B7 V. Description of invention (46 Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs ( Μ) ε Deformation &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; PQ 1 1 u Filter material drop &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; U 1 1 PQ foaming &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; &lt; U 1 1 PQ pressure loss MPa 0.003 0.004 0.018 0.006 1 0.020 1 0.030 0.005 0.00 0.006 0.006 0.030 1 1 0.004 80% capture particle diameter // m ON un On cn CO od CN un un oo CN 〇1 1 Air hole ratio% oo csi oo 5S 53 oo 53 53 o 1 1 oo Width X basic weight cmxg / cm2 0 1 _ i丨 0 1 ior— &lt; o, H 〇i Ή VO ο 1 1 'i ο 1 ο ii ο ι—Η 〇T-—H Example 16 Example 17 Example 18 Example 19 Example 20 Example 21 Example 22 Example 23 Example 24 &lt; jnir ratio Compared to Example 8 Comparative Example 9 Comparative Example 10 Comparative Example 11 ----- "--- rlM0 ----- IT ------ (Please read the precautions on the back before filling this page) This paper size Applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) -49 585947 A 7 B7 V. Description of the invention (47) The benefit of the invention is compared with the conventional winding reel winding type core killer. The filter element of the present invention has local filtering accuracy, Long filter life and excellent liquid flow characteristics, where the diameter of the initial trapped particles changes little, the pressure loss is small, and no foaming and filter material drop are generated. --------------- IT ------ 00— (Please read the notes on the back before filling out this page) Printed by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-50- This paper size applies to China National Standard (CNS) A4 (210x297 mm)

Claims (1)

585947 A8 B8 C8 D8 Printed by employees of the Intellectual Property Office of the Ministry of Economic Affairs, Cooperative, and applied for a patent application No. 90 1 0994 No. 1 Patent Application Chinese ·· Application for Patent Scope Amendment May, 1992 Amendment 1. A filter element , Which is made by winding a non-woven fabric tape containing thermoplastic fibers on a perforated cylinder using a twill winding method, wherein the non-woven fabric tape satisfies the equation (A): logio Y &lt; 3.75- 0.6 (logi〇X) (A ) Where X (cm3 / cm2 / sec) is the air flow rate measured according to JIS L 1 096-A (1 990), and Y (g / m2) is the basic weight; and the thermoplastic fiber is made of at least one thermoplastic resin And formed, and the thermoplastic resin may be selected from the group consisting of a polyester tree, a polyamide resin, a polyethylene resin, and a polypropylene resin. 2. —A kind of filter element, which is made by winding a non-woven fabric tape containing thermoplastic fibers on a perforated cylinder using a twill winding method, wherein the non-woven fabric tape satisfies the equation (B): logio Y &lt; 3.75-0.75 (logi〇 X) (B) where X (cm3 / cm2 / sec) is the air flow rate measured according to nS L 1 096-A (1990), and Y (g / m2) is the basis weight; and wherein the thermoplastic fiber is composed of at least A thermoplastic resin is formed, and the thermoplastic resin can be selected from the group consisting of polyester resin, polyurethane resin, polyethylene resin, and polypropylene resin. The paper size is applicable to China National Standard (CNS) A4. (210X297 mm) —— ~ Γ — (Please read the notes on the back of the ministry before filling out this page) 1Fill in this order 585947 Α8 Β8 C8 D8 The staff of the Intellectual Property Bureau of the Ministry of Economic Affairs printed the badge and applied for the patent scope group. 3 · —A kind of filter element, which is produced by winding a non-woven fabric tape containing thermoplastic fibers on a perforated cylinder in a twill winding manner, wherein the non-woven fabric tape is wound in a twill winding manner from one end to the other end along the longitudinal direction of the perforated cylinder The number of windings (W) is 10 turns per 250 mm; and the thermoplastic fiber is formed of at least one thermoplastic resin, and the thermoplastic resin may be selected from polyester resin, polyamide resin, polyethylene resin, and polymer. A group of acrylic resins. 4. The filter element according to item 3 of the scope of patent application, wherein when the number of windings (W) 2-fold 値 (2W) is approximated by having an irreducible denominator with two digits or less, the denominator 値 is between 4 and 40. 5. The filter element according to any one of claims 1 to 3, wherein at least a part of the interwoven fibers are fixed in a thermal knot manner. 6. The filter element according to any one of claims 1 to 3, wherein the width of the non-woven fabric tape is between 0.5 and 40 cm. 7. The filter element according to any one of the items 1 to 3 in the scope of patent application, wherein the product of the width (cm) and the basic weight (g / m2) of the non-woven fabric belt is 10 to 200 008. The filter element of any one of 3 to 3, wherein the thickness of the non-woven cloth belt is from 0.02 to i.20 mm. 9. The filter element according to any one of claims 1 to 3, in which the non-woven fabric tape is formed by hot pressing using a hot embossing roller with a relief area ratio of 5 to 25%. · 1 〇 · If the filter element in any one of the scope of the application for patents 1 to 3, (please read the precautions on the back before filling this page), 1T This paper is transferred from Shicaiguanjia (CNS) A4 · (2) G x 297 directors) 585 947 A8 B8 C8 D8 6. The scope of patent application for filter and core filter material is 65 to 85%. 1 1 · The filter element according to any one of claims 1 to 3, wherein the non-woven fabric tape is a long-fiber non-woven fabric. (Please fill in this page first, and then pay attention to the notes on the back page) 1 2. If the filter element of the scope of patent application No. 11 is used, the long fiber non-woven fabric is made by the spun method. 13. If the scope of patent application is No. 1 to 3 The filter element of any one of the above items, wherein the non-woven fabric tape is a melt-blown non-woven fabric. 14. The filter element of any one of the claims 1 to 3, wherein the plastic fiber is made of a low melting point resin and a high Melting point resin composition, the melting point difference between these resins is greater than 10 ° C. 15 · —a kind of filter element manufacturing process, which is made by winding a non-woven fabric tape containing thermoplastic fibers on a perforated cylinder using a twill winding method, in which non- The woven cloth belt satisfies the formula (A) · l0gi〇Y &lt; 3.75- 0.6 (logi〇X) (A) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs where X (cm3 / cm2 / sec) is based on JIS L 1096-A (1 990) measured air flow, and Y (g / m2) is the basic weight. 1 6.-A filter manufacturing process, using a twill winding method to wind a nonwoven fabric tape containing thermoplastic fibers It is made on a hole cylinder, of which non-woven cloth The number of windings (W) of the tape along the longitudinal direction of the punched cylinder from one end to the other end is 10 turns per 250mm. This paper size applies the Chinese National Standard (CNS) A4 size (210X 297 mm)