Ditgreen Co. Ltd.

Republic of Korea

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2023 1
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IPC Class
D03D 15/513 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof 2
A47C 27/12 - Spring, stuffed or fluid mattresses specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton 1
A47C 31/00 - Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets 1
B02C 18/00 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like 1
B02C 18/18 - KnivesMountings thereof 1
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Found results for  patents

1.

Cloth for mattress and method for manufacturing the same

      
Application Number 17901076
Grant Number 12037723
Status In Force
Filing Date 2022-09-01
First Publication Date 2023-01-19
Grant Date 2024-07-16
Owner
  • KANEKA CORPORATION (Japan)
  • DITGREEN CO., LTD. (Republic of Korea)
Inventor
  • Park, Soon-Yong
  • Chang, Hyo-Sup
  • Lee, Woo-Hyung
  • Jung, Mi-Young
  • Ohzeki, Tatsuro

Abstract

A cloth for mattress including a knitted fabric that is knitted from blended yarns contains flame retardant rayon fibers, modacrylic fibers, polyimide fibers, and low-melting polyester fibers. The cloth for mattress can be obtained by producing blended yarns containing the flame retardant rayon fibers, the modacrylic fibers, the polyimide fibers, and the low-melting polyester fibers, and producing a knitted fabric by knitting the blended yarns. The cloth for mattress has excellent flame retardancy, ensures easy handling when used to cover a mattress, is resistant to pilling without reducing the strength of the blended yarns, and is also safe for contact with the human body.

IPC Classes  ?

  • D04B 1/16 - Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
  • D04B 21/16 - Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threadsFabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
  • D04B 21/18 - Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threadsFabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
  • D03D 15/513 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof

2.

Flame retardant non-woven fabric for mattress and manufaturing method thereof

      
Application Number 17344421
Grant Number 12042055
Status In Force
Filing Date 2021-06-10
First Publication Date 2022-11-17
Grant Date 2024-07-23
Owner DITGREEN CO., LTD. (Republic of Korea)
Inventor
  • Park, Soon-Yong
  • Moon, Jae-Ryong
  • Choi, Yong-Dug
  • Chang, Hyo-Sup
  • Park, Yong-Seok
  • Lee, Woo-Hyung
  • Cha, Bo-Gyeong

Abstract

The present invention relates to a flame-retardant nonwoven fabric for a mattress, and a flame-retardant nonwoven fabric for mattresses comprising flame-retardant rayon (FR-Rayon) staple fibers of 20 to 50% by weight; modacrylic staple fibers of 30 to 60% by weight; polyimide (PI) staple fibers of 10 to 30% by weight; and low melting polyester (LM PET) staple fibers of 5 to 20% by weight provides enhanced flame retarding and mechanical properties.

IPC Classes  ?

  • A47C 31/00 - Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
  • D04H 1/06 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated man-made fibres by treatment to produce shrinking, swelling, crimping or curling of fibres
  • D04H 1/4258 - Regenerated cellulose series
  • D04H 1/435 - Polyesters
  • D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
  • D04H 1/46 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
  • D04H 1/485 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding

3.

CLOTH FOR MATTRESS AND METHOD FOR MANUFACTURING THE SAME

      
Application Number JP2021006791
Publication Number 2021/182102
Status In Force
Filing Date 2021-02-24
Publication Date 2021-09-16
Owner
  • KANEKA CORPORATION (Japan)
  • DITGREEN CO., LTD. (Republic of Korea)
Inventor
  • Park, Soon-Yong
  • Chang, Hyo-Sup
  • Lee, Woo-Hyung
  • Jung, Mi-Young
  • Ohzeki, Tatsuro

Abstract

The present invention relates to a cloth for mattress including a knitted fabric that is knitted from blended yarns containing flame retardant rayon fibers, modacrylic fibers, polyimide fibers, and low-melting polyester fibers. The cloth for mattress can be obtained by producing blended yarns containing the flame retardant rayon fibers, the modacrylic fibers, the polyimide fibers, and the low-melting polyester fibers, and producing a knitted fabric by knitting the blended yarns. The cloth for mattress of the present invention has excellent flame retardancy, ensures easy handling when used to cover a mattress, is resistant to pilling without reducing the strength of the blended yarns, and is also safe for contact with the human body.

IPC Classes  ?

  • D03D 15/513 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
  • A47C 27/12 - Spring, stuffed or fluid mattresses specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton

4.

Waste carpet and felt scrap recycling apparatus and method thereof

      
Application Number 14966222
Grant Number 10279509
Status In Force
Filing Date 2015-12-11
First Publication Date 2016-12-22
Grant Date 2019-05-07
Owner
  • Hyundai Motor Company (Republic of Korea)
  • DITGREEN CO. LTD. (Republic of Korea)
Inventor
  • Koo, Hong Mo
  • Hong, Byeong Kwon
  • Park, Bong Hyun
  • Ha, Jae Woong
  • Park, Soon Yong

Abstract

A wasted carpet and felt scrap recycling apparatus is provided. The waste carpet and felt scrap recycling apparatus includes a feeding unit that feeds a cut scrap while forming a feeding path and a supply unit that is connected to the feeding path and supplies the scrap that passed the feeding unit along the feeding path while pressing the scrap. A separation unit is spaced apart from the supply unit, and provides a frictional force to one surface of the scrap supplied from the supply unit through rotation of the supply unit and separates the scrap into fiber and recycled material.

IPC Classes  ?

  • B03B 9/06 - General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
  • B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
  • B09B 5/00 - Operations not covered by a single other subclass or by a single other group in this subclass
  • B02C 18/00 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like
  • B02C 18/18 - KnivesMountings thereof
  • B02C 18/22 - Feed or discharge means
  • B02C 23/10 - Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
  • B29B 17/02 - Separating plastics from other materials
  • B29L 31/00 - Other particular articles