1、I , i- - . . i- - z MILITARY STAMIARD . MIL-STD- 1 June 1970 GLOSSARY OF CLOTH COATING IMPERFECTIONS FSC 8305 THIS DOCUMENT CONTAINS I PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- STD- 148 7 DEPARTMENT OF DEFENSE WASHINGTON, D. c. 2030
2、1 Glossary of Cloth Coating imperfections MIL-STD- 1487 1. Agencies of the Department of Defense. 2. to U. S. Amy Natick Laboratories (GL), Natick, Massachusetts This Military Standard is mandatory for use by all Departments and Recommended corrections, additions, or deletions should be addressed 01
3、760. ii Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1. Government procurement agencies and their contractors. a need for a glossary of coating im-perfections for all coated cloths. The pul-pose of the standard is to furnish a common vocabulary fo
4、r use by It is designed to fill 2. quality of the basic materials and variation inmanufacturing processes and finishing operations. This standard, however, does not attempt to pin down the cause o the defects but merely to identify the defect in the finished product. Defects are likely to occur from
5、 many causes such as variation in the 3. Contributions by the Coated Fabrics Industries are acknowledged as are comments submitted by agericies that reviewed the draft of the standard. are requested to submit to the preparing activity comments, new terns and de- finitions that are considered applica
6、ble to this standard. Users iii Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1. 1.1 1.2 2. 3. 3-1 3 *2 iv Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-STD-Lq87 3 77777LL 0082251 O MIL-STD-
7、i48 7 1. SCOPE 1.1 General.- This standard establishes definitions for the words, terms and expressions for defects peculiar to the general field of coated cloths. A.2 Application.- source of defects in the preparation of visual examination sections of coaked cloth specification. It is anticipated t
8、hat this standard will serve as a 1.2.1 This standard is not intended to take the place of a particular in- spection procedure aid which may be provided for inspectors to verify conformance with a particular specification. The quality requirements specified in the basic specification are governing.
9、1.2.2 This standard covers only visual defects for coated cloth material, more specifically, defects applicable to the coating and coating material. Defects applicable to the cloth to which coating is applied are covered in FED-STD-4. FEDERAL FED-STD-4 - Glossary of Fabric imperfections (Copies of s
10、pecifications, standards , drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer). 3. GLOSSARY OF Tm 3.1 Introduction.- Defect terms are arranged alphabeticahy. Synon
11、ymous and similar terns are cross referenced, “See, I . . 3.2 Definitions.- Abraded area Abrasion Abrasion exposing base -An area of cloth worn away by rubbing or -Coating friction worn, reduced in gauge, -Coating worn through to base cloth. scraping. frequently surface roughed. cloth Abrasion mark
12、-_ - -An abraded spot. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-LLI87 83 M 9999933 0082252 2 M Adhesions Air pocket Air streak Bald spot Bar Bar mark Bare back Bare spot EUeeding Blister Blocking Bloom, blooming Blotchy Boardy Brittle
13、coating Broken edge (selvage) Build-up in roll Bruise Burn Burned gum -,See “Blocking“. - Se e “Bli st er “ -Streak caused by air trapped between cloth and compound or by air entrapped between calender roll and coating film as applied to cloth. -Waviness in material; inability to lie flat due to dis
14、tortion of cloth or uneven tension in coating. (See “Railroad tracks I). -A deficiency of firish in a small area. -A mark caused when coating machine is stopped or operated with an uneven or jerky motion. -Surface mark or indentation by the bars of a festooning oven or chamber used for suspension of
15、 the coated cloth during vulcanization or similar operation where material is allowed to rest temporarily on a heated bar or pipe, . e.g., on heating pipes on spreader steam table. -A cloth face which is free of any coating or covering. -Uncoated-area in the cloth. See “Bald spot. -mgration of an in
16、gredient to surface to form an oily film or beads; term usually used for liquid materials. Exudation, sweating. -Raised bubble or peak-out of surface coat; raised spot or void. -Tace, ability to adhere to self; adhesion between touching layers of material. does not unroll readily. -Coating compound
17、ingredients surfacing, generally detrimental to .ahesion or cement- ing; blush or discoloration; non-uniform appearance. Cloth -See “Mottled“. -A stiff or tinny effect. -Cracks when flexed, -Fractured. -Uneven thickness of coated cloth roll result- ing from curled, doubled, folded or rolled edges or
18、 uneven application of coating. -A scar caused by an uncrued artfcle striking a non-coated abject. -Cloth charred by excessive heat; singe; scorch. -Coating that has been carbonized or deteriorated resulting from excessive heat. This condition may also be caused by incornpatability of com- pounding
19、ingredients or improper mixing of compound. Overvulcanization. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Burnt areas Burnt stock Chafe mark Charred areas Checked coating Cold check Contamination Crack Cracked coating Crac king Crazing Crater
20、Crease Crows feet Curled cut Delamination Depression Dimple Dirty Discoloration Double Doubling crease Dry areas pleat; doubling of surfaces that do crease. opposite appearance of a blister. not adhere to one another and that cannot be corrected by manual pressure. -Radial lines and marks of pattern
21、 indicated by the name. -Undulated. -An opening made with a sharp edged object. -Surface coat removed, scraped, peeled or otherwise taken avay from the cloth; separation of coating from base cloth; separation of one cloth; separation of one cloth from another in a plied material. -Holmr in a surface
22、. See “Crater“. -Small surface depression; collapsed blister. -Uncleanness -Color other than specified, entirely or in part. -Edges or selvages curled to the extent that material folds on itself. -A crease folded back on itself, -Excessive heat applied in vulcanization process. -A crease permanently
23、 set into the material. -Inclusion; foreign matter which on removal leaves an uncoated, poorly coated area or a through hole. -Heavy deposit of dusting material. -Area that has a heavier coating than the surround- -Finish coat leaves uneven appearance. -Finish does not cover entire sheet. -Finish co
24、at applied to surface that leaves streaks. ing area or characterized by lumps or ridges. 3 ._ * ,- Y. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - .I MIL-STD-1487 83 W 797791L 0082254 b H MIL- STD- 148 Fish eye Flat embossing Folded Foreign mat
25、erial Globs Grain depth Heavily beaded Hole Indistinct Insufficient coating Light area Liner impression Linty Luster Mark- off .- Mottled Not as specified Not smooth Not straight -Non-uniform release of coating film from calender rolls causing pits in coating surface. (This condition could also be c
26、aused by solvents in spreading), -Embossed finish too smooth. -Material is bent or pressed so that one part is over another (see “Doubled“). -Any extraneous matter (lint, dirt, grease, etc.). - See “Lump I . -Too deep, too shallow, uneven. accordance with stated requirement. -Referring to edges and
27、selvages. cannot be rolled in uniform layers. -An opening of undetermined cause. covered by base cloth and coating compound. -Finish or grain not clearly evident. -See “Thin area“. -See “kin area“. -See “Mark-off I. Not in Material Area not - -Pick off of lint from back of cloth on to surface coatin
28、g or from lint in atmosphere in coating area. -An agglomerate of coating compound; undilused coating stock; imbedded foreign material; surface protrusion usually of the base coating material as distinguished from imbedded foreign material. -A characteristic of the finish, i.e., the dull- ness, brigh
29、tness, glossiness of the finish. -imprint of the back of material onto the face when the material is rolled. -Blotchy or spotted appearance of cloth; marble-like appearance caused by undiffused stock feeding into calender bite at the same time. -When referring to color, shade, finish or not in accor
30、dance with stated requirements; does not match standard sample within established color and shade tolerances when standard sample is available. -Material is rough in appearance or to touch. -Referring to edges or selvages. Self-descrip- tive. - 4 Provided by IHSNot for ResaleNo reproduction or netwo
31、rking permitted without license from IHS-,-,-MIL- STD- 1487 Not uniform Objectionable odor Off shade Paper picks PicK-of f Pick-up Pigmentation missing Pigment streaks Pinch Pinched coating Pinhole -Material varies in width, thickness, color, -Odors of chemicals commonly-used in coating shade finish
32、 or grain. compounds shall not be regarded as objection- able. (Choice of curing agents, plasticizers etc. should be such that ordinary odors from such ingredients are minimized to an accept- able degree). side to side, side to center. -Not within established shade tolerance, shaded -Particles of pa
33、per adhering to film surface. See “Foreign material“. -An area where coating is delaminated from its base and either torn off completely or remain- ing attached as loose flap. herence to calender roll or to back of material in a roll. -This occurs when an additional substance is picked up from a cal
34、ender roll or the back of material; opposite of pick-off. Caused by ad- -Poor distribution of pigments. -Visible streaks of pigment variation in coating. -A crease where surfaces adhere. -A ridge or wrinkle in the coating. -A pinhole is defined as any transparent or semitransparent opening observed
35、in the cloth under through-light i/ conditions which may or may not be vizible when the coated cloth is viewed at the same distance in average daylight or the equivalent thereof; a point presenting an opening large enough to allow penetration of a pinpoint of light in through lighting. i/ The throug
36、h-light inspection shall be performed in a darkened area using the lighting table described as follows: clear glass top an6 fluorescent tubes. glass top and 6 to 8 inches from the sides and ends of the light housing. The spacing between %ubes shall be 5 to 6 inches and the interior of the light hous
37、ing shall be white. During the examination when the surface of the coated cloth is in contact with the light table, the illumination in the darkened room shall be 20 + 5 foot candles of natural or artificial The light table shall have a shaU,be illuminated with a minimum of two 25-watt The tubes sha
38、ll be positioned 9 to 10 inches below the . - - - - 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1487 83 79777L1 0082256 T MIL-STD- 1487 Footnote to lfPlnhole“ (cont d) light. An instrument for measuring li dual parallel im- pressions in
39、 warp direction, varying lengths. cloth. (May also be caused by improper -Depression in surface forming a pattern -Having the bad smell of stale fats or oils. -Material where defect is corrected by patch, sewing or other means. -Having or rising in a ridge or ridges. -Cut or torn apart roughly. -Res
40、embling small waves. -Edges folded over. -See “Not smooth“. -Compound does not cover cloth. -Characterized by scallop-like ridges. -Marking or scraping in the material. -Damage to surface due to rough hancLing. -See “kaminat ion“. -Uncured coatings that have cured during transit and/or s torage. -Re
41、ferring to edges ox selvages. Self-des- criptive. -Area of no coating. -Self-descriptive, usually resulting from inadequate curing. -Spots of foreign material from back of cloth, atmosphere, coating operation or manual handling etc. See “Dirty“ and “Foreign material“. -Bright spots in the finish. -T
42、wo cloths joined together and coating extended -An area of discoloration on the surface of the -See lfSpotl. over joint. cloth Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - MIL-STD-3487 83 7777733 0082257 3 W - Stitch mark Stop mark Streak Strik
43、e through Swirls Tacky Tear Thin area, thin spot, thinly coated Tight Tunnel Two-tone Unc oat e d Uneven coating Uneven dust wavy Weak spot Wrinkle Custodians: Army - GL Navy - SA Air Force - 11 Review activities: Navy - AS, SA, MC Air Force - 11, 45, 62 User activities : Army - MD, AV, ME Navy - OS
44、, SH, YD MIL- STD- i487 -In spliced cloth, an impress.ion in coating -Characterized by thin or heavy area. -A line or long thin mark; stripe or smear, caused by splicing thread. generally differing in colos or texture from the surrounding area. side of cloth, specified. -Coating compound shows throu
45、gh on uncoated Undersirable only if so -Coating in a swirl pattern. -Sticky. -Split; pulled apart. See “Rip”. -Thiclmess of coating is less than specification requirement. Varies from overall thickness. -Referring to edges or selvages, Causing curl, puckering or waviness. -An elongation area between
46、 coatirigs on a multiple coating job or between the cloth and coating. -%o distinct shades of color. -No visible coating applied. -Variation in gauge in same finished coated cloth. -Dusting material not evenly applied over entire coating. -Characterized by wave-like appearance. See “Baggy I. -Usually an area where material is missing or undergauge -See “Crease ”. Preparing activity: Army - GL Project No. 8305-0952 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
