JPH04500987A - Cut-resistant yarns, fabrics and gloves - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This is a partial continuation of Application No. 140,530 filed on January 4, 1988. Yes, Application No. 140.530 is Application No. 87λ66 filed on June 12, 1986. This is a partial continuation application of No. 9. Background of the invention The first embodiment of the present invention is applicable to ropes, webbing, straps, inflatable products, etc. Regarding cut-resistance jackets for It consists of a break-resistant jacket, and the jacket is made of yarn fabric. Li.

The yarn has a tensile strength of at least IGPa and is a long, high-strength fiber wrapped fiber. Relating to cut-resistant products consisting essentially of strands.

A second embodiment of the invention provides a cut resistant yarn and a protective garment. Regarding their use. Such protective clothing has many uses. sharp knife Meat processing workers who are exposed to While handling materials This is how people who handle metal and glass must be protected from sharp edges. Protective clothing can be used. Exposure to scalpels and other sharp instruments Health care workers are protected by the use of such clothing.

Manufacturing cut-resistant fabrics for gloves used for safety in the meat cutting industry It is publicly known. For example, U.S. Patent No. 4,470,251, U.S. Patent No. 4,384 , 449, and U.S. Pat. See OO4,295, these All patents are incorporated herein by reference. cores of different tensile strength and elongation as in patent no. 4.321.654 and Producing a composite line containing two slag filament materials as jackets It is also publicly known. Composite strands, cables, yarns, ropes, fabrics, filaments It is also known in other prior US patents not listed here.

)” aramid fibers are worn out by meat processors. It is suggested that this material can be used in cut-resistant gloves. U.S. Patent No. 3,953.89 No. 3 teaches the use of aramid fibers in cut-resistant aprons.

U.S. Pat. No. 4,004,295 discloses that yarns of metal wire and e.g. Gloves made of non-gold fibers, especially for cutting with a knife in butchering. It suggests its use as protection from damage. U.S. Patent No. 4,384,449 and No. 4,470.251 also describes the use of metal wire in combination with aramid fibers. There is.

U.S. Pat. No. 4,651,514 discloses at least one aramid fiber strand. A monofilament nylon core wrapped by a nylon contact strand and It is suggested to use a yarn consisting of: For example, in U.S. Patent No. 4,004,295 Outweighs the suggested benefits. The stated advantages of this yarn are The main reason is that the conductor is non-conductive.

Ultra-high molecular weight means 300,000 to 7,000,000. Usually the molecular weight is It is less than 30o, ooo.

Fibers referred to here include multi-fibers, such as threads and filaments, singly or in groups. a continuous or short length of filament, e.g. stable means.

The yarn described herein and H, having a denier of less than 10,000, plating (braiding) + waving (w6aving) + fusion bond, tufting - for further processing into fabrics such as knitting suitable for means a continuous length of fiber wrapped with similar or different fibers do.

The strands mentioned herein have a denier of less than 2000 and are preferably threaded. Continuous fibers or spun staple fibers that cannot be used, or only for the first implementation a continuous length of multifilament end of metal less than 0.01 inch in diameter or means the monofilament end.

Cut-resistant garments manufactured using prior art techniques are undesirable for many applications. Having a drawback or limitation. Manufactured using only high-strength polyethylene and other fibers. Protective clothing improves the level of cut protection. However, 2. For example, a newly sharpened knife. The very sharp edges also cut very cut resistant fibers with only moderate cutting forces. Can be cut. A metal wire is added to a yarn containing one of the above high-strength fibers. This can improve the cut resistance of the yarn. Very sharp edges are also aramid It is difficult to completely cut the yarn made from the metal twill and the metal twill. but , such rings are very inflexible due to the rigidity of the metal. I have clothes If it is too stiff, the wearer will get tired from using it or In extreme cases, clothing may be removed and the desired protection lost. The fabric of this clothing Reuse and bending can cause the relatively rigid metal wire to break. in this case It is believed that the broken wire ends protrude from the yarn. protruding from clothing These sharp wires can scratch the wearer or the object being handled.

The use of metal wire in the cut resistant yarn makes the yarn electrically conductive. This means that Clothing made from such yarns should not be used in contact with high-voltage electrical equipment. means. Nylon monofilament instead of metal wire for cut-resistant yarn Using , conductivity problems are eliminated. However, nylon monofilament The use results in yarns with low cut resistance. Nylon has very sharp edges.

Easily cut than metal wire. Therefore, the yarn as a whole is cut easy to be

The present invention overcomes many of the limitations of cut resistant yarns made using the prior art.

The present invention has a cutting resistance equal to or equal to that obtained using yarns containing metal wires. It has better cut resistance but the stiffness or conductivity associated with metal-containing yarns. It has no gender.

Summary of the invention A first embodiment of the invention comprises a cut resistance jacket surrounding a low cut resistance element. It is a resistance product. The jacket is made of yarn fabric. Yarn is at least IG It consists essentially of long strands of high modulus with a tensile strength of Pa. 1 strand More strands than strands are used. Wrap this strand with fiber. fibers are long They are different from yarn.

The fibers surrounding the strands also have a tensile strength of at least I GPa7. 5; Preferred.

Low cut resistance elements include rope, sea urchin webbing, straps, Can be selected from the group consisting of hoses and pneumatic structures.

Core strands of rope, webbing, straps or pneumatic structures The fibers are nylon, polyester, polypropylene, polyethylene, aramid, super Fibers of high molecular weight, high strength polyethylene or other fibers known for this application. It's possible.

Pneumatic structures have low cut resistance with the fabric of the invention as a jacket or outer layer It is a layer. The strands used for the jacket fibers are aramid, ultra-high molecular weight. You can choose from. used to wrap long strands (or strands) Fibers are aramid, ultra-high molecular weight polyolefin fiber, carbon fiber, metal fiber. Polyamide #! polyolefin fiber, polyester fiber 9, normal molecular weight polyolefin fiber, Select from the group consisting of glass fibers, polyacrylic fibers and combinations thereof. I can do it. Fiber wrapping is a high-strength fiber with a strength exceeding IGPa. In cases where Comprised of inert fibers, carbon fibers, metal joints, glass strands, and combinations thereof. You can choose from the following groups.

The polyolefin cavity of the present invention is made of ultra-high molecular weight polyethylene or polypropylene. polyethylene, preferably polyethylene; a commercial example is 5pectra ■) 900 and Suzukutora 1000.

The fiber wrapping can also be a blend of low strength fibers and high strength fibers. like this Low-strength fibers include polyamide, polyester, glass II fiber, polyacrylic fiber, and and combinations thereof.

Articles of the invention may also include more than one jacket surrounding the low cut resistance element. Ru.

In another example of the first embodiment, the product of the present invention is characterized in that the yarns of the fabric are connected to adjacent yarns of the fabric. be present in the gaps between the fabrics of the jacket to bond and increase the penetration resistance of the jacket. Contains substances that exist.

The material used in the gap is a nydistomer, preferably a thermoplastic rubber, more preferably B. g-urethane9. +? selected from the group i- consisting of polyethylene and polyvinyl chloride; It can be a substance that

In a second embodiment, the present invention is a high cut resistance composite yarn. The yarn is at least Consists of two types of fibrous materials. All substances contained in the yarn are primarily metallic.

At least one of these materials is highly flexible and inherently cut resistant. It requires that At least one of the substances must have a high cirrhosis level. Essential. Examples of such materials are glass fibers, which are hard p-fiber materials, and flexible fibers. In combination with high-strength extended chain polyethylene fibers, which are an inherently cut-resistant fibrous material, It is based on the combination Garments made from the yarns of the invention, such as gloves, are highly cut resistant. be. They are also very flexible and non-conductive.

The present invention (σ, the prior art in that it uses a non-metallic hard fiber material as one component of the yarn) It is different from. The only hard fiber material suggested in the prior art is metal wire.

Other materials suggested by the prior art, such as nylon, are hard materials. I can't think of that.

For example, very brittle hard materials such as glass twills can be used in the composite yarn of the present invention. It is surprising how much cut resistance can be achieved without the use of a metal. Such fragile materials may break easily when the yarn collides with the cut edge, providing little protection. Usually considered. However, by using a very small diameter glass in the yarn core, it is possible to Do not protect by external wrapping of flexible fibers or coatings. It has been found that the composite yarn becomes very resistant to breakage during cutting.

More specifically, the second aspect of the present invention is a cut made of at least two types of non-metallic fibers. cut-resistant yarns, at least one of which is flexible and inherently cut-resistant and at least one other species has a high level of hardness. The hardness level is Mo's hardness. Greater than about 3 on the Mohs hardness II scale is preferable. Cut-resistant materials are described in U.S. Pat. No. 8, 223,596 (1988). Cutting weight 135 r, mandrel speed 50 r stated in pm, mandrel diameter 19mm, blade drop height 9mm, and 9 single-edged machines. Industrial laser blade for cutting It is cut resistant and will cut in at least 10 cycles with the cutting equipment used. Said The fibers have a twist of less than 2 twists per inch and are tested on a 10 gauge knitting device. Made of high strength polyvinyl alcohol, 11 oz/sq yd fabric. selected from the group consisting of lamid, high strength liquid crystal polyester and mixtures thereof. Ru. Preferred fibers with high levels of hardness include glass, lamic, carbon and and mixtures thereof. Many fasteners with high levels of hardness at least about 12 microns in diameter, with diameters ranging from about 2 to about 10 microns. It is most preferred to have a high level of hardness. Other preferred fibers are softer core material and a hard material part such as glass, ceramic or carbon It can have a coating. Multi-component twill fibers of any diameter or thickness may be used. similarly , this hard fiber has a matrix such as carbon, glass or ceramic. It is a soft material impregnated with a hard material.

It can be a composite fiber of any thickness. Mixtures of any of the above rigid p-fibers are also useful. It is believed that there is. Covering fiber with high hardness with elastomer coating be able to. A second embodiment is a fabric and an example produced from yarns of the above-mentioned composite fiber. For example, there are clothing such as gloves made from such fabrics.

Description of preferred embodiments Yarn for jacket fabric (first embodiment) Protective jacket of the first embodiment of the present invention The yarn used to produce the fabric was made of stainless steel wire with a diameter of 0711 mm. Long strands of books and tensile strength of 3 GPa.

-V-Joule 171 GPa, elongation 2.7%, 650 denier and 1 strand Ultra-high molecular weight polyethylene wire with 4 or 120 filaments per yarn It is manufactured by wrapping one parallel strand of fiber. This yarn is Allied Corporation (A11ied Corporation) as Tora 01000 ation). The wrapping furnace has a tensile strength of 1.00 GPa, modulus 13°2GPa, and elongation 14 inches. 500 denier , 700 filament/strand polyester. For yarn A, the above A double-layered wrap of polyester fibers is used to wrap the wire and high-strength polyethylene. Wrap the row yarn.

For yarn B, wrap the ultra-high molecular weight polyethylene tightening section around the strand. Used as the innermost layer. The outer layer is polyester twill.

Alternatively, aramids such as Kevlar can be strung into ultra-high molecular weight polyethylene instead. It can be used as fiber or wrapping fiber.

Comparative yarn C-3600 denier, tensile strength I GPa, modulus 13. Polyester with 2 GPa and 14% elongation, without wrapping.

This wrapped yarn (A or B) or Comparison yarn C is then braided, knitted, woven or Fabrics for use as jackets of the present invention can be manufactured in other ways.

This jacket can then be used with ropes, weppings, straps, and pneumatic structures. It can be used to surround structures, etc. The jacket is a braider device. 1 per carrier in Manufactured from more than one thread of yarn. braided strand Alternatively, a complete or partial covering of the core of parallel strands can be provided.

The yarn of the fabric used in the jacket of the present invention is, for example, a strand of high strength F# fiber. in a simple wrapping manner or by core spinning or by Tazalanization (Taza lanizing) or otherwise wrapped to form a strand or A wrap of yarn can be applied around the strands.

Cut-resistant yarn (second embodiment) The yarn of the second embodiment of the invention comprises at least 2 BK fiber material and at least Both types are flexible and cut resistant in one type, and have a high level of cut resistance in at least one other type. If it has the hardness of Le, it is strong. Advantages of using this particular combination of substances Desirability is a sharp edge cutting operation for various fibrous materials. By carefully observing the material, it was revealed that a certain fibrous substance that is unique to the It is known to have cutting resistance at a special level. For example, "Kevlar" Aramid fibers are more difficult to break than most other synthetic fasteners - for example: Assuming that the sharpness of the cutting edge is the same in both cases.

To completely cut the aramid 9 fibers, it is necessary to completely cut the same amount of polyester fastener. It also requires a lot of force.

For example, extended chain polyethylene (ECPE) #fibers such as “Suzukutra” are also uniquely cut. It has been observed to be cut resistant. E CP E* fibers are highly cut resistant Besides being extremely wear resistant and flexible, it has excellent cut resistance Form the yarn.

The present invention is not limited by the type of twill material of the yarn.

Flexible and uniquely cut like aramid fibers or FiE CP EII fibers Requires a resistant substance.

For example, materials such as aramid furnaces and ECPE fibers are cut resistant.

These fibers also use extremely sharp edges during cutting, and this edge is If pulled through, complete severance can be achieved with relatively moderate force.

During the development process of this invention, we incorporated rigid fibers into flexible and inherently cut-resistant materials. It has been found that the cut resistance of the yarn increases appreciably. this hard substance blunts the cutting edge during the cutting process, thus making the cutting edge more difficult to cut. It was discovered that

The assumption that hard substances blunt sharp edges and make yarn difficult to cut is second-order. Proven by simple tests. ECPE knitted fabric (knittedEcPE) A sample of fabric was cut with a scalpel blade that had never been used before. did.

Apply sufficient force in your hand as you pull the scalpel through the fabric to completely cut the fabric. I added. Next, similarly, an unused scalpel blade was wrapped in 25 denier glass fiber. brought into contact. The cut edge of the scalpel was pulled over the glass fiber under moderate hand pressure. child The pressure of It was a pressure that made him touch her. Next, use this scalpel to cut the ECPE fabric. I cut it off. The force required to completely cut the fabric can greatly increase in this case. found. It is clear that drawing the edge of the scalpel over the glass fiber reduces the sharpness of the edge. It was clear. If the edge of the scalpel is brought into contact with the glass contact repeatedly, the edge may become unreliable. to such an extent that the ECPE fabric no longer cuts even under the pressure of Bell's hand. It turned out that it was slowing down. On the other hand, using an unused scalpel When cutting ECPE fabric repeatedly, the force required for cutting increases with the number of cuts. I didn't. It is clear that ECPE does not appreciably blunt the female margin. It was.

For purposes of the present invention, non-metallic hard fiber materials can be used. glass fiber fibers and ceramic fibers were common examples of such materials. For the purposes of the invention Therefore, the "hard material" has a hardness level that can significantly reduce the sharpness of the cutting edge. It is a substance that has bells.

The shape that hard materials take can vary considerably. Hard fibrous materials have a uniform composition.

For example, it has a continuous length, such as continuous filament glass #'# miscellaneous. hard Fiber materials are non-continuous, such as chopped glass fibers. It can also be length. It can also be of non-uniform composition. For example, E# fiber material can be constructed from organic fibers coated with a layer of ceramic material. Other examples are Examples of organic fibers filled with ceramic particles or fibrils. The above example is They are listed for clarity only; many modifications can be easily made by those skilled in the art. Ru.

One assumption that can be made by those skilled in the art is that the hard fibers used as part of the present invention It is extremely brittle, which limits its use in clothing. In fact, use hard materials The fragility of is not an important issue. Glass fiber or ceramic commonly used in the present invention The fibers have an extremely small diameter. If a larger diameter is required, use the above-mentioned cover 9. Alternatively, impregnated fibers can be used. As a result, these hard materials are still very It can be bent around objects with a very small radius without breaking.

Preferably, the hard fiber material is incorporated into the core of the composite yarn. In this way, The hard material is exposed to minimal stress during yarn bending. In addition, hard materials can be yarn By putting a flexible and inherently cut-resistant material into the core of the material, it becomes more brittle. Helps protect core materials.

In many cases it is preferable to enclose a rigid fibrous material with a continuous layer of elastomeric material. stomach. This subject I3. F′i has several important functions. Hard material is multifila In the case of ment fibers, the υ holds the f# fibers together and keeps the fibers in the composite yarn. The fibers are protected from stresses that occur during handling before entering the fibers. Coverage is physical chemically protects hard materials. In addition, hard materials are used In case of breakage, the coating traps the hard material and does not leave the yarn structure.

A cutting test device useful for measuring the cut resistance of the fibers and yarns of the present invention is as follows.

The same, filed on July 25, 1988, which is hereby incorporated by reference in its entirety. No. 223,596, currently pending. For the purposes of this invention: "Cutting test device" means the device described above.

Example 1 Test on rope (first embodiment) Jacket made of cut-protective fabric I attached it. Three standard ropes were tested for cut resistance. 3 types of regular A 1/4 inch (0,6 cm) trunded rope is manufactured and this rope core is A specific braided yarn fabric is used to enclose it as a blanket. fabric) was used. The jacket is formed separately and placed over the rope core. Alternatively, it can be formed around the core during one of the manufacturing steps.

Comparative sample 1 has a jacket made of braided fabric from comparative yarn C. It was nine Kevlar stranded ropes. Comparative sample 2 is made from comparative yarn C. Attached is a jacket made of laden fabric. Ultra high molecular weight high strength polyethylene ( Spectra”900) was a stranded rope at the tightening part.Sample 3 of the present invention Example The above ultra-high molecular weight polyethylene is surrounded by a braided jacket from Niyan A. Ren (Suwa Kutra □”) #Vi Strandroso was.

Guillotine te with three types of ropes with Jahut st) Tested by K. In the guillotine test, the rope is held in a fixture and restricted its movement. A clamp prevents the rope from moving along its axis and The rope was passed inside the two pipes to prevent the rope from deflecting during cutting. the blade cuts When doing this, the two pipes were separated very slightly. To completely cut the rope The maximum force required for this was determined to be 1lllj.

In the second test, the cut damage test, the rope was placed on a wooden surface and no other restraints were applied. Ta. Next, put the blade in the rope for 250. ? It was pushed in with the force of F. (113.6 kg). . The damaged rope was tested for retention strength. In both tests, each test sample A new Stanley blade (Stanley blade) 41992 for the Using. The test results are shown below.

Guillotine test results cutting pound 2 139 (61,8) 335 (152) '638 (290) 3 144 ( 65,5) 286 (130) 616 (280) Average 138 (6Z7) 2 82 (128) 646 (294) Cutting damage test results, retention strength A3 85 97 Cutting Damage Test (“Abused J”) Rope Observation - It was shown that the loop was cut smoothly halfway. Sample 20- Puji Yaketsu The filament was also partially cut, but the filament was not cut smoothly. sa Sample 30-P showed only dents where the blade had pressed. Even the jacket was cut off For this reason, only 30-500. + ? Tested in a cutting damage test at the Endoka. This retains 92% strength, Jacket cutting remains unproven Example 2 Wear resistance (first embodiment) Comparative sample 2 and sample 3 (invention) were tested to determine the wear resistance of the jacket. tested for gender. Sample 3 has a jacket made of Yarn A braided fabric. Ta. It was a 1/4 inch (0.6 cm) stranded rope.

In the test, each sample rope was placed on a 10 inch (25,3 cm) diameter abrasive wheel (ab bent at a 90 degree angle on the rrgive wheel). 180 pounds on the rope (81.8 kg) and rotate the grinding wheel at 3 rpm. A reciprocating motion was made throughout the stroke (7.6 cm). jacket completely worn out I finished the exam on time. The number of strokes (cycles) for each sample is the comparison sample 2. was 8, and sample 3 was 80.

Example 3 Braided rope (first embodiment) 4 types of 1/4 inch (0.6 cm) Braided ropes were tested with various jackets. Comparison sample 40-p is made of the above-mentioned high-strength ultra-high molecular weight polyethylene yarn, and the jacket is made of 1 000 denier, 192 filament/strand, tensile strength 1.05 GPa, mo Braided from polyester yarn with duress of 15.9 GPa and elongation of 15 inches It became.

Sample 50-P is 1875 denier, tensile strength 153 GPa, modulus The blade was made from Kevlar yarn with a pressure of 60.4 GPa and an elongation of 3.5%. jacket The sample was the same as sample 3.

Sample 60-P was also made from the above-mentioned high-strength, ultra-high molecular weight T-polyethylene yarn under low tension. I made it into a blade and got "Soft) (5oft)' J rope.The jacket I used was It was the same as Example 3. Sample 70-P was tested by applying more tension during rope braiding to create a “harder” rope. (Hard) Same as sample 6 except that J rope was formed.

A constant load was applied to the rope in Example 1 and @I. When the rope is stretched taut under the knife There was almost no difference in cut resistance between the ropes. In the cutting damage test, the results are below. It was like this.

best format The best form of the first embodiment of the invention is described below.

Most cut resistant structures, ropes, urchin rubs or straps have maximum tensile strength Strong ultra-high molecular weight polyethylene embroidery M (Spectra 1000) strand Yarn with internal strands of 0.11 mm stainless steel arranged parallel to the Manufactured from. It is preferably covered by a braided jacket. Bu The above ultra-high molecular weight polyethylene as the core as braided or strands It is thought that the strands (low tensile strength polyethylene fibers) are used. Polyester fibers as described in Yarn B above It is wrapped by an external wrap.

Laboratory studies of 11 lines were carried out by independent laboratories to establish deep sea mooring lines and The fish bite resistance Jlij (degree eoffishbite resistance) was confirmed. Composition of lines In addition to general considerations based on structure and structure, we objectively measure puncture resistance and cut resistance. Three types of laboratory tests were used to find out. The test was carried out under stress relief and under service load. It was carried out for

line structure All of the test lines had cores made of parallel synthetic fibers. 6 lines are polyester It has a luline core. 3:) The in has a Keplerian fiber core and the l line The system had a Kutra ■900 line.

The core of a line with a polyester core is wrapped with polyester cloth tape and The ester cloth was covered with a braided polyester cover. Other sauce (80ur The core of the rope from ee) had a wrapping that appeared to be identical. 1st The table contains a summary of information about the test line. Sample 9 uses polyurethane in the gap. The first embodiment of the present invention used will be described. All other samples are comparative examples. Two ways to improve penetration resistance using a sharp tip: (1) Durometer (Du using the Shoreo scale (ASTM method +2240) Ru. or (2) [Deep Sea Line Fish Bite Manual (Deep-3ea Lines Fiahbite Manual) J [Prindle & V Prindle & Walden 1975] Measurements were made by piercing with a simulated shark tooth of hardened steel. Penetration test force/ Each data point represents five measurements of the force required to pierce the line surface at a distance of 1. It is the average value of For stress relief line samples using Baldovin universal testing equipment, Force to cut test The tests were carried out as described and explained in the "No. 2 Lite Manual".

Under constraints of time and material availability, the puncture and cut tests were completed at 1125 lbs. The test was repeated for the line under tension. A weight is attached to the test line. The load was applied by lifting t). Both ends of most rope test specimens are , insert the end of the test line inside the hollow braided rope, and when tension is applied, it will wear out. Rubbing secures the end of the rope [Chinese finger] It was fixed by the finger) method. Durometer and puncture test are normal However, the force test required for cutting was performed by pulling the blade against the test line. The cutting blade attached to the stirrup (5tirrup) used for It was carried out. This method uses a deep-sea line fibre, which cuts the lower jaw of the shark, as a cutting tool. It is also explained in the "Shu Baito Manual".

All of the cutting force data are the results of one cut against the indicated line. The test was about 70 or below. and conducted on line samples at ambient conditions of variable relative humidity.

Laboratory test results Three previously tried types, both unprotected and armored A 13,723" diameter polyester rope tested was included as a standard for reference.

Among the two types of armor, acetal copolymer (Celco n M2S-04) Gives Il- a high degree of bite resistance. When tested at sea , this means that the line is sufficiently strong under a strong bittihg attack. 75: Proven. Unfortunately, Cercon M25-04 composition is Although it is not a practical armor because it cracked during handling, it has the necessary toughness. This is an example of a substance that is useful in this case. The second reference line is nylon 6/6 [ Protected by Zytel ST 801). This is good handling However, it has lower bite resistance than acetal copolymers. This is typical of plastic coating lines. This is the range of substances that are accepted. It is considered to be the limit fish bite armor representing the bottom of Ru. The jacket has lower puncture and cut resistance than nylon 6/6. If so, this jacket is reliable against fish bite damage under all conditions. It is considered not to be a reliable barrier.

Summarize the results of laboratory tests. Fiber and plastic jars, if available. The generic name of KET and the product name are also listed in Table ■. . The thickness of the plastic jacket was measured on a small piece taken from the test line and Write it in parentheses after the title. Some data are missing, and samples ≠ 1. If the obtained sample is destroyed, the +6 is repeated by a heavier jacket. be. The problem of finding sufficient results for liner 10 will not be solved in time for this report. These were not tested under tension, as this was not determined.

Line evaluation Clear success in all categories thanks to the diversity of line structures and test methods ■ The table describes the data obtained by the durometer and raised by this test Protected reference line i.e. acetal when tested under tension when any of the lines Clearly not equal to either copolymer (AC) or nylon (N) It is. Protected by the best line ij47mil ionomer in the test line. +6 and 114 protected by 41.76ml ionomer protected 10 mils of polyester. The remainder requires further consideration. It fell short of the level that seemed necessary. However, the blade Therefore, some mention should be made about protected samples. These are poly ÷7. protected by olefin and aluminum blades. kevlar blade Protected by≠8. +9 protected by polyurethane and metal blades It is. These three types all rank low in the durometer test, The reason for this is that the conical tip of the durometer slips between the strands of the blade. This seems to be because of this. The final rank in this test, 8, is cut resistance. was ranked number one. Therefore, the durometer test is a useful measure of the toughness of a material, but when used on objects with discontinuous coverage, It seems that it does not represent the whole story (5 stories).

In every case the line was tested under stress relief (5lack) and again under stress, The durometer readings should be the same or line up within experimental error. Increased when placed under power.

Pierce test The single-tooth stick test is similar to the chelometer test in that the tip is pressed into the line. The same is true, but in this case there is an additional possibility of cutting due to the edge of the tooth.

Table 1 shows the relative resistance of the lines under this test.

When the line was tested under stress relief, the acetal copolymer (AC) again It had great resistance and required 63 bonds to penetrate. 2nd place is 114ml Polyester It was +10 protected by tell. This is the resistance of the acetal copolymer reference line. It had 7Q% resistance and was superior to the nylon 6/6 (N) reference standard. next order The number of items protected by polyurethane and blades was ≠9. The next few steps The pot has items ≠ 1, 5, 6 and 7, which are marginally accepted na It had only 71% of the puncture resistance of Iron 6/6 coated line.

Tension produced significant changes in the ratings. ÷ 1 spot is item ≠ 9 (urethane/button) raid armor), which increased from 35 bond resistance to 58 bond resistance.

Under tension, this was essentially equivalent to the acetal copolymer under stress relief conditions. . By tension, it is the same as the acetal copolymer reference line and has a 31 lb. The nylon 6/6 protective line is also good, ranking second at the level of about 38 bond. There were three closely competing lines. All 3y type blade coating lines are tension negative. It showed an increase in puncture resistance when loaded.

cutting force Unlike the middle test, the cutting force test only applies when the armor and fibers are cut. , the cutting edge can be advanced. The test results shown in Table V are completely different. be.

Four lines in the test line had 2epsilon under both stress relief and stress conditions. It was more highly cut resistant than In.

All lines were tested under tension, with two notable exceptions: Items 8 and 9. In some cases, it has lost its cut resistance. Nylon 6/6 reference when tested under stress relief. The five lines that were comparable to the above were found to be low enough to exclude them from future consideration. The selection of line for testing in is complicated by the variables of line material and construction. . Overall, there are three types of structures as shown below: 1. Plastic-only Rope 2 protected by layers Rope 3 protected only by braids, Braids About the jacketed rope line made of a combination of braid and plastic Considering the test data presented in Tables ■, ■, and Table V together with the available information. This suggests that there is at least one rope in each category that is worthy of further research. and

Listing the lines into their comprehensive puncture-resistant and cut-resistant condylar order , the best 5 lines are as follows: Sample 10...114m11. Poly 5/8” diameter protected by ester (Hytral) Kevlar rope. This line is thick and very rigid. This line is a large It could only be handled by heavy machinery.

A method to stop this line can be completed in time for this report. However, the results regarding the stress relief line may be used for future tests. This shows that it is worth considering.

Sample 9. ...The polyurethane plus metal core yarn blend on the cutla fastening part. Spectra ■90 (1/4” diameter rope of L fiber) covered with a cord jacket. The line is flexible and has good handling properties. This line is a stress reliever. It is invulnerable to puncture when under pressure, but becomes resistant under service loads. This la Outperforms the acetal copolymer reference line in terms of cut resistance. .

Complete the information necessary to recommend this line as unsuitable for testing at sea. 15 information on susceptibility to deterioration in seawater is required to complete the process. It is Sample 7...5/1 with polyolefin and aluminum blade armor 6" diameter Kevlar rope. The armor for this line is 35 mi on Kevlar rope. l polyolefin aluminum blade Nl + 41 mil polyolefin Consists of fins. This is only slightly more rigid than other Totsuka lines. Despite that.

It had good power handling. The durometer test was performed on unfinished nylon 6/6. The puncture test against the stress relief rope was less than nylon 6/6, but the line When loaded, the acetal polymer becomes very resistant to puncture. They were almost equal. In the cutting test, it was ranked 3rd under stress relief, but under stress It was superior to both reference lines. This is a good line and at sea Worth testing.

Sample 6...76 mil ionomer [5urlyn] Jacketed 1/2” diameter polyester fiber [Syn Cor e). This line had good handling properties, but overall this line was In three types of tests, the evaluation was slightly lower than that of the nylon 6/6 reference line.

This line has the least resistance in terms of its ability to protect against fish bites. It was considered interesting for sea trials.

Sample 8...Rough texture (eoarsll) Kevlar braided jacket 5/8” diameter Kevlar with a Although it was near the bottom in terms of gender, it was ranked first in terms of cut resistance. When loaded In this case, the line is destroyed by a steel blade before the line can sustain any significant damage. It became more resistant to cutting. Try this type of line further for fish bites. You will be clearly instructed to Overall, the results show that the blade has interesting properties in cut resistance, but especially When the line is under stress relief, it is susceptible to being penetrated by sharp leads. on the other hand The plastic armor loses its cut resistance under tension. Any combination of the two has effective bite resistance under It should be researched in order to manufacture the line.

Table 1 Line 9 1/4” provided for laboratory testing for fish bite resistance The suction is Kutra urethane application blade 8 Wrapped with polyester fiber. The combination with stainless steel wire is Kutra Rei. Braid made of fiber strand yarn Table ■ Line cutting resistance and bulging resistance 1 1/2” Polyester Ionomer (47) 2 Polyurethane (56) 3 Thermoplastic elastomer 41) 4 Thermoplastic Santoprene (43) 5 Polyester (52) 6.t? Real Aramid Ionomer (76) 7 5/16” Kevlar Polyolef fin/aluminum plate.

8 3/8” Kevlar Kevlar plate.

9 1/4" Spectra polyurethane coating plate °*810 5/8" Keb Polyester (114) AC13/32” Polyester Acetyl Copo 1 Tsum (78)N Nylon 6/6 (63) O None ** See footnote to Table 1.

1st I clothes (ff) 3 23 28 11 22’ gB 145 49 52 27 36 1 o7 238 14 30 13 50 377 > 4 B.

9 46 51 35 58 22□ 300AC81,6338* 121>45* N 78 39 * 31　104〉37* 0 -- 14 2 * *1200+b for the line, tension table m AC7818O N 63 2 78 50 denier ECPE cultivated fiber (Suzukutora 1000) is placed on the yarn core without twisting. This core is wrapped in one direction with 650 denier E CP E binding fiber, and in the other direction. constructed by wrapping with other 650 denier ECPE #I fibers in the direction of Ta. It was a composite yarn denier f12900. The gloves are 7 gauge Shima Seiki. Knitted by a knitting machine. The fabric of the gloves is approximately 0.055 inch thick and approximately 18 oz. It had a weight of 1.5 ounces/square yard.

The test used to determine the cut resistance of the samples described above is co-pending U.S. Application No. 22159. It is stated in No. 6. This test sharpens the sample until it is penetrated by the cutting edge. Includes advantageous edges and repeating samples. Cutting cycle required to penetrate the sample The greater the number of contacts, the greater the reported cut resistance of the sample.

The following conditions were used during the test: cutting 135 g, mandrel speed 52 rpm, Rolled steel mandrel diameter 19 mm, cutting blade drop height 9 mm, single-edged industrial blade. User cutting blade [Red Revi brand )], 9-cut arm distance from pivot tip to blade center #6 inch, 2 types of gloves Cut the gloves from the fabric (samples A and C) and insert the fingers into the tester's mandrel. It was tested by placing it on a rail. Place band clamp on finger amputation This kept the finger on the mandrel. Woven fabric sample (sample B) Cut a 2 x 2 inch piece from the fabric and sump the sample around the mandrel of the tester. The test was carried out by rolling the tube and keeping it on a mandrel with adhesive tape.

Make sure that the woven fabric does not come into contact with the sample at the overlapped area of the fabric edge where the cutting blade is attached. , installed. The reported number of cuts is the average value of multiple tests. For each test, a new Use a fresh, unused laser blade to ensure that the cutting edge sharpness remains the same for each test. I made it.

Sample A Sample B Sample C Cutting cycle until sample penetrates 45 1 114 Fabric thickness (mil) 45 9 55 Fabric weight (oz/square yard) 13.8 8.9 18 sa cycle/thickness cycle/mil) 1.0 0.1 11 cycles/weight (cycles/oz/yard) 3.3 0.1 6.3 ECPEfi fiber (sample) Adding glass fiber to Sample C) greatly increases the cut resistance of the fiber. Shiuroko is surprising. The glass diseased fiber itself has almost no resistance to cutting. it is obvious. Glass fibers do not break during the impact of the cutting process when used alone. It's easy to get lost. ECPE IIJ fibers and glass fibers are combined to create cut-resistant yarns. A synergistic effect is observed when

For this comparative test, woven glass fabric was used due to its availability. knit It would have been desirable to test glass fabric similarly. However, glass fiber fabrics are difficult to knit due to their brittleness, and such fabrics are difficult to obtain. It is not expected to have break resistance.゛　c Procedural amendment

Claims (6)

[Claims] 1. at least two types of non-metallic fibers, i.e. at least one of the above-mentioned non-metallic fibers; type is a flexible and inherently cut-resistant fiber, and the other type of non-metallic fiber is at least one of the fibers has a hardness level greater than about 3 on the Mohs hardness scale. A method of making a cut-resistant yarn comprising combining said non-metallic fibers that are fibers. . 2. Inherently cut resistant fibers cut weight 135g, mandrel speed 50rpm , a single-edged industrial laser with a steel mandrel diameter of 19 mm and a blade drop height of 9 mm. At least about 10 cutting cycles in a cutting test device using a laser cutting blade the fibers have a twist of less than 2 turns per inch and are resistant to knitted on a large knitting machine to produce a fabric weight of approximately 11 oz/sq. Claim 1 tested as a knitted fabric consisting of 400 denier fibers. Method described. 3. at least two types of non-metallic fibers, i.e. at least one of the above-mentioned non-metallic fibers; The above-mentioned non-metallic fibers are flexible and inherently cut-resistant fibers. at least one of the other types has a hardness level of greater than about 3 on the Mohs hardness scale. the non-metallic fibers are fibers that are inherently cut resistant. The fibers are made of high-strength polyethylene, high-strength polypropylene, and high-strength polyvinyl alcohol. from the group consisting of polyesters, aramids, high strength liquid crystalline polyesters and mixtures thereof. Fibers of choice, with high levels of hardness, are used in glass, ceramic, and carbon fibers. cut-resistant yarn, which is a fiber selected from the group consisting of carbon fibers and mixtures thereof; method of manufacturing. 4. Fibers with high levels of hardness are used in glass, ceramic, carbon and other materials. A polyurethane material consisting of a soft core material coated with a hard material selected from the group consisting of a mixture of The method according to claim 1, wherein the fiber is a heavy component fiber. 5. Fibers with high levels of hardness are used in glass, ceramic, carbon and other materials. a composite consisting of a soft material impregnated with a hard material selected from the group consisting of a mixture of The method according to claim 1, wherein the fiber is a fiber. 6. Claims in which fibers with a high level of hardness are coated with an elastomeric coating The method described in item 1 of the scope.