# US 2014/0154482 A1 · Camouflage fabric having near infrared ray reflectance adjusting characteristics > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0154482 A1 - Document ID: US20140154482A1 - Status: Published application - Kind: A1 - Application number: 14/232,311 - Filed: 2012-07-10 - Published: 2014-06-05 - Earliest claimed: 2011-07-11 - Inventors: Rae Young Jang - Web page: https://patentgrep.com/patent/US20140154482A1 ## CPC - D03D 1/0047: {Camouflage fabrics} - D06M 11/42: Oxides or hydroxides of copper, silver or gold - F41H 3/00: Camouflage, i.e. means or methods for concealment or disguise (for vessels B63G8/34, B63G13/02 {; sound camouflage, i.e. simulating gun fire noise, F41A33/04; dummy or decoy targets F41J; chaff per se F41J2/00; ammunition for dispensing chaff F42B5/15, F42B12/70; radar absorbing fabrics H01Q17/005}) - F41H 3/02: {Flexible, e.g. fabric} covers, e.g. screens, nets {characterised by their material or structure}(making thereof, see the relevant classes, e.g. D04) - D10B 2401/16: antistatic; conductive - Y10T 428/2481: including layer of mechanically interengaged strands, strand-portions or strand-like strips - Y10T 428/249921: Web or sheet containing structurally defined element or component - Y10T 442/3065: Including strand which is of specific structural definition - D03D: WOVEN FABRICS; METHODS OF WEAVING; LOOMS - D06M: TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS - F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL - D10B: INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The present invention relates to a camouflage fabric having near infrared ray reflectance adjusting characteristics. The aim of the present invention is to achieve semi-permanent durability so as to significantly ameliorate problems of inferior durability which occur in an existing method for manufacturing a camouflage fabric, i.e. applying carbon and a pigment absorbing near infrared rays to a synthetic fabric, and to enable near infrared ray reflectance in a near infrared ray spectrum having an infrared ray wavelength band of 720 nm to 1500 nm so as to exhibit little or no difference from the near infrared ray reflectance of the natural background of each terrain, thereby achieving predetermined camouflage effects. In addition, copper sulfide nanoparticles, or metal sulfide nanoparticles containing copper sulfide, have antimicrobial properties and conductive properties, and the camouflage fabric for military use, which has superior physiochemical properties and naturally exhibits antimicrobial properties and antistatic properties even without a separate post-treatment, can be provided for effective use in clothing, equipment, tents, military supplies, etc. To achieve the above-described purposes, the camouflage fabric having the near infrared ray reflectance adjusting characteristics according to the present invention is characterized in that conductive synthetic polymeric materials in which copper sulfide nanoparticles, or metal sulfide nanoparticles containing copper sulfide, which fundamentally have near infrared ray reflectance adjusting characteristics, are coordinate bonded to a polymeric substrate and are then designed and woven such that the near infrared ray reflectance in a near infrared ray spectrum having the infrared ray wavelength band of 720 nm to 1500 nm exhibits little or no difference from the near infrared ray reflectance of an object existing in the environment. ## Claims ### Claim 1 A camouflage fabric with near infrared ray reflectance adjusting characteristics, comprising a conductive synthetic polymer material that is coordinate-bonded to polyamide reformed such that metal sulfide nanoparticles comprising copper sulfide or copper sulfide nanoparticles have a metal capturing functional group by a silane coupling agent containing imidazole and mercapto group, wherein contents of the conductive synthetic polymer material comprise about 0.1 wt % to about 3 wt % element copper and element additional metal with respect to a total weight thereof such that a near infrared ray reflectance of the conductive synthetic polymer material is equal or similar to near infrared ray reflectances of surrounding objects in a near infrared ray spectrum of about 720 nm to about 1,500 nm. ### Claim 2 (depends on 1) The camouflage fabric of claim 1, wherein the conductive synthetic polymer material, which contains metal sulfide nanoparticles comprising copper sulfide or copper sulfide nanoparticles in addition to the polyamide polymer matrix improved so as to have the metal capturing functional group by the silane coupling agent containing the imidazole and mercapto group, and a conductive metal sulfide nanoparticle composition comprising the copper sulfide or the copper sulfide nanoparticles comprises about 1 wt % to about 30 wt % copper sulphate salt, nickel sulphate salt and zinc sulphate salt, about 0.05 wt % to about 5 wt % hydroquinone, about 0.05 wt % to about 1.5 wt % mercaptoacetic acid, about 0.1 wt % to about 10 wt % ethylene diamine, about 0.1 wt % to about 10 wt % sodium thiosulfate, about 0.01 wt % to about 1 wt % hydroxylamine sulfate, and about 2 wt% to about 5 wt % pH-conditioning agent with respect to 100 wt % of the reformed polyamide fiber to be coated. ### Claim 3 (depends on 1) The camouflage fabric of claim 1, comprising: a conductive multifilament yarn of about 30 denier to about 150 denier containing metal sulfide nanoparticles comprising copper sulfide or copper sulfide nanoparticles, which controls the near infrared ray reflectance characteristics by allowing the metal sulfide nanoparticles comprising copper sulfide or copper sulfide nanoparticles with near infrared ray reflectance adjusting characteristics to be coordinate-bonded to the polyamide reformed so as to have the metal capturing functional group by the silane coupling agent containing the imidazole and mercapto group; and two types of synthetic polymer multifilament yarns comprising: a first multifilament yarn of a total of about 250 denier to about 350 denier in which a multifilament yarn of a polymer matrix of about 150 denier to about 350 denier without a component capable of controlling the near infrared ray reflectance characteristics is twisted at about 300 T/M to about 400 T/M using a twisting machine; and a second multifilament yarn of a total of about 250 to about 350 denier which does not substantially comprises the component capable of controlling the near infrared ray reflectance characteristics. ### Claim 4 (depends on 3) The camouflage fabric of claim 3, wherein the two type of filament yarns are woven in warp and weft directions so as to have a specific near infrared ray reflectance of about 25% to about 70% according to a blending ratio of the first multifilament yarn and the second multifilament yarn in a near infrared ray spectrum region of about 720 nm to about 1,500 nm. ### Claim 5 (depends on 3) The camouflage fabric of claim 3, printed with a dye so as to have certain pattern and color in a visible ray spectrum.