Attachment J3 - Theater Curtain Specifications.pdf
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- Solicitation number
- 030ADV25Q0103
- Issued by
-
Library of Congress
About this file
This document is a detailed specification for theater curtains, providing comprehensive requirements for fabric, fire performance, and fabrication. The specifications mandate woven cotton velour curtains in Merlot color, with a minimum width of 54 inches and weight of 21 ounces per linear yard, treated with "Scotch Guard" at the mill. Fire performance requirements include a flame spread rating of no more than 25 per ASTM E84, flame retardant compliance with NPS 701, and specific standards for abrasion and colorfastness.
The fabrication guidelines are intricate, specifying 100% fullness, prohibiting horizontal seams, and detailing precise hem construction. Requirements include using first-quality mercerized thread matching the fabric color, creating 6-inch vertical hems with 1-inch tucks, double-stitching, and installing heavy jute webbing on top hems. Bottom hems must include canvas chain pockets with zinc-plated chain, and side hems are to be lined with half-width fabric. Additional specifications cover pleating, grommets, turnbacks, and lining, with the finished curtain length determined by the distance from the track's underside to one inch above the finished floor.
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THEATER CURTAINS
Fire performance:
1. Flame spread rating of not more than 25 when tested in accordance with ASTM E84.
2. Flame retardant in accordance with NPS 701.
3. Abrasion: ASTM D1175 G4T.
4. Colorfastness: AATCC 16 A.
Fabric:
1. Woven Cotton Velour: Napped fabric of 100 percent cotton; 54-inch minimum width.
2. Weight: Not less than 21 ounces per linear yard before fire treatment.
3. Treat fabric with "Scotch Guard" at mill.
4. Lining: Yarn-dyed denim cloth of 100 percent cotton, woven in a warp-faced twill; 54-inch minimum width.
5. Color: Merlot.
6. Labels: Provide permanently attached labels to each curtain at off-stage bottom hem indicating fabric type, curtain manufacturing date, dimensions.
Curtain Fabrication:
1. Fabricate according to manufacturer' s fabrication guide for specified heading system, to provide not less than 100% fullness.
2. Horizontal seams and fabric less than half width are not permitted.
3. Thread:
a. First quality mercerized cotton, rayon or dacron thread.
b. Color: Match selected color of fabric.
4. Vertical hems: Not less than 6 inches wide, with 1 inch tuck, double-stitched and machine sewn with no selvage material visible from front of curtain.
5. Top hems: Double-stitch 3-1/2 inch wide heavy jute webbing on top edge, with minimum 2 inches of face fabric turned under.
6. Bottom hems:
a. Not less than 6 inches deep, with separate interiors with heavy canvas chain pockets and zinc plated, 3/16 inch, No. 8 chain.
b. Stitch chain pockets so chain rides 2 inches (50 mm) above bottom edge of curtain.
c. Double-stitch hems parallel and machine with no selvage material visible from front of curtain.
2. Side hems:
a. Line traveler curtains with ½ width face of fabric turned back at leading edge.
b. Other side hems: Two inches.
3. Pleats:
a. Provide fullness in curtains by sewing 6 inches of additional material into box pleats spaced 12 inches (300 mm) on center along top hem reinforcing.
b. Grommets: Not less than No. 3 brass spaced at 12 inches (300 mm) and centered on box pleats, for tie lines of "S" hooks.
c. S-hooks: 1-7/16 inch (37 mm) No. 105, to attach curtain to track system.
4. Turnbacks:
a. Where curtains overlap at center of stage and where otherwise specified, provide turnbacks formed by folding 24 inches of face fabric back at each end of panels and securing by sewing across top hem and grommeting through both layers of fabric.
b. Do not sew turnbacks vertically.
5. Lining: When required, provide lining in same fullness as face fabric, 2 inches shorter than face fabric and attached to face fabric along bottom hem at seams by 4 inch long heavy woven cotton tape.
6. Finished length of curtains to be distance from underside of installed track to one inch above finished floor.
File details come from the government source that posted it. Updated .