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Cord Construction l  Packaging l Types of Cords l Brand Names l  Other Good Information
 

CORD CONSTRUCTION
• DIAMOND BRAIDED CORDS

1/16" through 3/8" diameter. #2 through #12 sizes

Diamond Braided (or Maypole Braid) is an 8-carrier over and under basket stitch construction as shown in the illustration at left. It may have a hollow core or it can be made with strands in the center core to provide more accurate size, firmness, extra strength or to eliminate stretch. Normally its breaking strength is equal to that of the solid braid

• SOLID BRAIDED CORDS

1/16" through 1/2" diameter. #2 through #l6 sizes

Solid Braid (or Sash Cord Braid) is a locked stitch construction with a smooth appearance and small vertical picks as shown in the illustration at left. Small sizes are made on 9-carrier machines, intermediate sizes on 12-carrier machines, and large sizes on 18-carrier machines. This type of cord can be made without strands in the core and still retain its firmness and roundness. However, solid braid cords are most often made with strands in the core to achieve special characteristics
• SMOOTH BRAIDED 16-C CORDS

1/16" through 1/2" diameter. #2 through #16 sizes

16-Carrier Braid is an over and under basket stitch or basket weave construction with 16 strands in the braided cover rather than 8 strands as in the diamond braid type. This smooth braided cord may be hollow, semi-flat, very soft and flexible, or it may have strands in the center core to increase firmness, size, or for other desirable reasons.

• TWISTED ROPES

1/8" through 5/8" diameter

Twisted Rope is usually 3-strand construction as shown at left. Many ends of yarn or filaments are twisted together into a single strand. Then three strands are twisted together with an opposite twist to form the finished rope. 4-strand and 2-strand ropes are constructed similarly. Twisted rope is usually stronger than braided cord of the same size because its filaments are parallel to each other at all times.

PACKAGING
Standard Put Ups. All cords and ropes can be supplied in coils, tubes, reels, spools, hanks, lapped in cartons or cut to specified lengths. Cut lengths of Nylon and Poly cords supplied with heat sealed ends.
Other special put-ups supplied if desired. See below illustrations.

 Packaging. Coils, tubes, reels and spools can be supplied un-wrapped, paper wrapped,
plastic bagged, shrink wrapped or individually boxed.
Hanks are normally paper labeled and can be supplied in shrink wrap poly bags.
All items are available with your own private brand labels .

Tubes and Coils
Reels and Spools
Hanks: we also cut lengths to order


The Cord Making Process at Rocky Mount Cord Company
• SPINNING INTO YARN

Selected raw cotton, and blends, purchased especially for cord production, is carded and spun into yarn in ROMOCO'S spinning mill. The quality and size of yarn is carefully controlled to assure the best of its type for the specific cord or rope it produces. There is never a question of shortage of yarn as ROMOCO spins its own supply.
• BRAIDING INTO CORD

Actual braiding of ROMOCO cordage is carefully controlled by skilled textile personnel. The many types of braiding machines maintained offer a wide variety of braids and color designs. After braiding,
exclusive forming machines assure uniformity of size and even polishing.

Properties of Cordage Fibers
Used by Rocky Mount Cord Company
Cotton
(Spun Yarn)
Nylon
(Multi-filament)
Polyester
(MultIifilament)
Poly-propylene (Multi-filament)
Poly-propylene (Mono-filament)
Glass
(Fiber Glass)
Aramid
(Kevlar)
BREAKING
TENACITY
(Grams per
denier)
3 to 5 gpd
5.7 to
9.5 gpd.
6.0 to 9.5 gpd.
2.5 to
8.0 gpd.
3.5 to 7.0 gpd.
9.6 gpd.
21.7 gpd
STRETCH
ELONGATION
AT BREAK
POINT
(%)
3% to 7%
15% to 28%
12% -14%
20%
to 100%
14% to 30%
3.1%
2.5%
ELASTIC
RECOVERY
(%)
74 at 2%
45 at 5%
99 at 5%
89 at 8 %
99 at 2%
88 at 5 %
99 at 5%
95 at 10 %
98 at 5%
100%
100%
SPECIFIC
GRAVITY
1.54
1.14
1.38
0.91
(Floats)
0.91
(Floats)
2.50
1.44
MOISTURE
ABSORBENCY
24% to 27%
4.2% to 8.0%
0.4%
Negligible
Negligible
None
4.5%
ABRASION
RESISTANCE
Good
Resistance
Excellent
Resistance
Excellent Resistance
Good
Resistance
Good
Resistance
Good
Good
EFFECT
OF HEAT
Decomposes
302°F
Yellows at 300°F
Melts at 480°F
Melts at
482°F
50% tensile
at 200°F
Melts at 320°F
50% tensile
at 200°F
Melts at 330°F
75% tensile
at 650°F
Melts at 2050°F
Decomposes
at 930°F
EFFECT
OF AGE
Negligible
None
None
Negligible
Negligible
Excellent
Resistance
Excellent
Resistance
EFFECT OF
SUNLIGHT
Loses strength
Loses strength after prolonged
exposure
Loses strength after prolonged
exposure
Good resistance to indirect sunlight
Good resistance if UV -stabilized
Excellent
Resistance
Loses
strength after prolonged
exposure
EFFECT
OF ACIDS
Disintegrates in
concentrated
solutions
Good resistance. Dissolves in
sulfuric acids.
Good resistance. Dissolves in
sulfuric acids.
Good resistance. except with oxidizing agents
Good resistance. except with oxidizing agents

Resists
most
acids
Resists most acids. Some strength lost
after long exposure.
EFFECT OF
ALKALIS
Swelling,
but no
damage
Inert.
Moderate
Good
resistance
Good
resistance
Unaffected
Generally good resistance
EFFECT OF
ORGANIC
SOLVENTS
Resistant to
common solvents
Resistant. Soluble
in phenolic and
formic acid.
Resistant. Soluble
in phenolic acid.
Insoluble in most, except chlorinated hydrocarbons.
Insoluble in most, except chlorinated hydrocarbons.
Unaffected
Unaffected, should not be bleached.
RESISTANCE
TO MOTHS
Not attacked.
Not attacked.
Not
attacked
Not
attacked
Not
attacked
Not
attacked
Not
attacked
RESISTANCE
TO MILDEW
Poor, unless
bleached
Not attacked.
Not
attacked
Not
attacked
Not
attacked
Not
attacked
Not
attacked
IDENTI-FICATION
Burns
rapidly
Melts before
burning. Forms
hard bead.
Celery odor.
Melts before burning.Forms
hard bead.
Pungent odor.
Floats. Melts before burning. Burning asphalt
odor.

Floats. Melts before burning. Burning asphalt
odor.
Does not burn. Melts at 2050°F
Does not melt. Decomp-osesat 930°F
Loss of strength by sunlight is lessened considerably in all fibers if dark colors are used. The monofilament poly fibers have been oriented for greater resistance to sunlight deterioration.
Safe working loads of cordage is 8% to 20% of listed tensile strengths.

Other Good Information


FIBERS

Standard production of cords and ropes are now in Cotton, Cotton Blend, Nylon, Polyester, Polyethylene, Polypropylene and Rayon. Special production runs can be made in Kevlar, Spectra, Dyneema, Vectran, Tensylon and other synthetics on special order.

COLORS

Natural white and many other colors are offered as standard items in all of our standard production fibers. Special colors can also be supplied on special order
MINIMUM ORDER

Minimum order of $2,000.00 All standard items can be supplied in any quantity.

 

Exact Control of All Steps of Cord Production means —

1. Uniform Quality That Never Varies!
2. Dependable Supply at all Times
3. Greater Savings fkrom Year to Year!

 

 
     

Rocky Mount Cord Company Makes Cord and Rope for Any Use!

Awning Cord - Braided
Awning Cord - Twisted
Bell Cord - Braided,
Clothesline - Braided
Cotton Rope - Twisted
Curtain Cords
Drapery Traverse Rods
Gill Rope - Twisted
Government Spec. Cords
Government Spec. Ropes
Hammock Ropes:
Cotton
 Polyester
Polypropylene
 Marine Cordage

Mason Line
Cotton
Nylon
Net Lines - Nylon
Polyester Cords - Braided
Porch Shade Cord
Polypropylene Cordage
Monofilament
Multifilament
Textured
Rope - Twisted
Cotton
Spun Polyester
Textured Polypropylene
 Sash Cord
Cotton
Nylon
Polyester

 Seine Line - Nylon
Shade Cords - Cotton
Signal Cords
Stage Curtain Cords
Tiller Cords - Wire Center
Traverse Cords
Twisted Ropes
Cotton
Polyester
Textured Polpro
Venetian Blind Cord
Vertical Blind Cord
Window Shade Cord
Wire Center Cord
Woven Wood Shade Cord

BRAND NAMES

ADMIRAL - Solid Braid Nylon
ATLAS - Mason Line - Cotton
ATLAS - Shade Cord -Cotton
BRACE - Braided Cotton
BOSUN -wire center nylon
CAPTAIN - Diamond Braid Nylon
COASTLINE Solid Braid Polypro
CORSAIR - Diamond Braid Nylon
DRAWTITE Traverse cord - Cotton
FLAGSHIP - Wire Center Polyester
HERCULITE - Mulit fil, Prolpropylene
NYCREST - Venetian Blind Cord
PILOT Wire Center - Cotton
ROCKWELL - Awning Cord, Cotton
ROCKWELL - Mason Line
ROCKWELL - Sash Cord, Cotton
ROMOCO - Twisted
ROMOCO - Mason Lin
ROMOCO - Sash Cord
ROMOCO - Twisted rope
ROMOCO - Venetian Blind Cord
STARLITE - Multifilament, Polypropylene
TEXPRO - Awning Cord , Textured Polyproplyene
VIKING - Solid Braid Polyester

Rocky Mount Cord Company, Inc.
P.O. Drawer 4304 • Rocky Mount, NC 27803-0304
252-977-9130 • Fax: 252-977-9123

If you don't see the cord or rope that you need, give us a call!!!

Orders: 800-342-9130

info@rmcord.com