High-strength fabric and manufacturing method therefor

{
  "publication_number": "US10066326B2",
  "country": "US",
  "kind": "B2",
  "title": "High-strength fabric and manufacturing method therefor",
  "abstract": "The invention provides a high-strength fabric and a manufacturing method thereof. The manufacturing method includes: connecting at least one group of single yarns according to a certain law to manufacture a fabric body, wherein the high-strength fabric includes at least the fabric body, and each single yarn is manufactured by converging or converging and twisting an ultra-high molecular weight polyethylene thin film or strip. The high-strength fabric has the advantages of good structural integrity, simple manufacturing process, high production efficiency, high strength, high strength utilization ratio, light weight, no pollution and good bulletproof performance.",
  "claims": [
    "1. A fabric, characterized in that the fabric includes a fabric body which is formed by connecting at least one group of single yarns according to a certain pattern, wherein each single yarn is prepared by converging or converging and twisting a plurality of ultra-high molecular weight polyethylene films or strips into a whole, and the ultra-high molecular weight polyethylene film or strip has a certain width and thickness and has an integral structure without integration points or trim lines; and wherein the ultra-high molecular weight polyethylene films or strips meet at least one or more of the following conditions: a breaking strength is above 10 grams/denier; a tensile modulus is above 800 grams/denier; and an elongation at break is below 6%.",
    "2. The fabric according to claim 1, wherein the ultra-high molecular weight polyethylene film meet at least one or more of the following conditions: a linear density is above 5000 deniers; a width is above 100 mm; and a thickness is below 0.2 mm.",
    "3. The fabric according to claim 1, wherein the ultra-high molecular weight polyethylene strip meet at least meet one or more of the following conditions: a linear density is above 100 deniers; a width is 1-100 mm; and a thickness is below 0.2 mm.",
    "4. The fabric according to claim 1, wherein the fabric body is formed by two-dimensional interweaving or three-dimensional interweaving a plurality of single yarns to form a whole.",
    "5. The fabric according to claim 4, wherein interweaving comprises: weaving, knitting or machine weaving.",
    "6. The fabric according to claim 1, wherein the fabric body comprises at least one single-layer structure, and each single-layer structure is formed by sequentially performing arrangement along a direction and non-interweaving type connection of multiple single yarns to form a whole.",
    "7. The fabric according to claim 6, wherein the non-interweaving type connection comprises: binding connection, bonding or hot-pressing connection.",
    "8. The fabric according to claim 6, wherein the fabric body is formed by overlapping at certain angles multiple single-layer structures and laminating them to form a whole.",
    "9. The fabric according to claim 8, wherein a plurality of intersection angles of any two adjacent single-layer structures are the same.",
    "10. The fabric according to claim 9, wherein any one of a plurality of intersection angles is 0-90 degrees.",
    "11. The fabric according to claim 10, wherein any one of a plurality of intersection angles is 45 degrees or 90 degrees.",
    "12. The fabric according to claim 8, wherein an intersection angle between at least two adjacent single-layer structures in any one of a plurality of various single-layer structures is different from any one of a plurality of intersection angles of other single-layer structures.",
    "13. The fabric according to claim 12, wherein the intersection angles of any two adjacent single-layer structures are gradually increased from the first single-layer structure to a last single-layer structure."
  ],
  "description_excerpt": "The invention relates to the field of application of polymer materials and particularly relates to a high-strength fabric and a manufacturing method therefor.\n\nUltra-high molecular weight polyethylene (Ultra High Molecular Weight Polyethylene, referred to as UHMW-PE) is a thermoplastic engineering plastic with a linear structure and excellent comprehensive performance, and one of important uses of the material is to manufacture a high-strength fiber on the basis of the material. The ultra-high molecular weight polyethylene fiber is a high-performance fiber, has the advantages of high strength, wear resistance, impact resistance, corrosion resistance, UV resistance and the like and can be widely applied in multiple fields, for example, the ultra-high molecular weight polyethylene fiber can be used for preparing ropes, fishing nets, various fabrics and the like in the civil field, can be applied to manufacturing of bulletproof vests, bulletproof helmets and the like in the field of individual protection products, and can also be applied to manufacturing of bulletproof floors, armored protection plates and the like in the field of national defense and military supplies.\n\nAs the ultra-high molecular weight polyethylene fiber has a silk-like structure (the fiber number of a single yarn is about 2.5 deniers), in the process of preparing the various fabrics based on the ultra-high molecular weight polyethylene fibers, the multiple fibers with the silk-like structures need to be subject to finishing, interweaving or non-interweaving type connection respectively, the process is complex, and the cost is high.",
  "cpc": [
    "D03D 15/0088",
    "D02G 3/06",
    "D03D 15/46",
    "D04B 1/16",
    "D10B 2321/0211",
    "D10B 2401/063",
    "D10B 2501/04"
  ],
  "ipc": [
    "D03D 15/00",
    "D04B 1/16",
    "D02G 3/06"
  ],
  "assignees": [
    "ZHENGZHOU ZHONGYUAN DEFENSE MATERIAL Co Ltd"
  ],
  "inventors": [
    "Changgan Ji",
    "Ruiwen YIN",
    "Junying Ma"
  ],
  "filing_date": "2013-06-20",
  "publication_date": "2018-09-04",
  "grant_date": "2018-09-04",
  "priority_date": "2013-06-20",
  "application_number": "US-201314900153-A",
  "family_id": "52103820",
  "cited_by_count": 1,
  "citations": [
    "CN1033848A",
    "US5578373A",
    "JPH0610233A",
    "JPH08151635A",
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    "CN2309353Y",
    "JP2001081648A",
    "WO2008048301A2",
    "JP2007182065A",
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  ]
}