Gram per denier

The breaking strength of a textile filament, yam or cord, expressed in grams per denier. Tendering... 

Silk has a tenacity of approximately 4.8 grams per denier, slightly less than that of nylon. 

When Nylon 9 has acquired a high degree of orientation by drawing 4.5 to 5 times, it shows a tenacity of 5.0 to 5.5 grams per denier and an elongation of 20 to 25% (Table II). 

For the various POY yams textured at constant tension to a fixed tenacity and elongation target (3.3 grams per denier tenacity 18% elongation), the number of broken filaments generated by the texturing operation decreases with Increased yam stmcture (Table 1). Interestingly, the best POY structure versus PTY broken filament number correlation Is achieved with the reciprocal product of amorphous orientation (fa) and crystalline content (x) ... 

Tenacity Cord strength, frequently expressed in grams per denier. 

Tenacity. It is the stress at which the fiber breaks, expressed in grams per denier. It is a very important property of polyolefin fibers, and it can range between 3.5 and 8 g/d (grams per denier) or 31-81 g/tex [10]. General textile use PP fibers can have a tenacity of 40.5-50 cN/dtex, whereas high tenacity yams used in ropes and nets can have tenacities up to 81 cN/dtex [11]. 

Tensile strengths (and modulus) are usually reported in the textile industry in the units of grams per denier (gpd— breaking force in grams per 9000 m of filament) whereas the general scientific community uses SI units. Where possible, both sets of units are listed. To convert from gpd to SI units the density of the fiber required, which is often not reported in these studies. 

Tenacity to- na-s9-te (1526) n. A term used in yarn and textile manufacturing to denote the strength of a yarn or filament of a given size. Numerically it is the Newton of breaking force per tex of lineal density (replacing the deprecated old unit, grams per denier). In testing tenacity, the yarn is usually pulled at the rate of 0.5cm/s. 

GPC gel permeation chromatography gpd grams per denier GPEC Global Plastics Environmental Conference... 

As an aside, we mention that fiber strength (tenacity) and stiffness are usually expressed in units of grams per denier or grams per tex (i.e., grams force to break a one-denier or one-tex fiber). This is because the cross-sectional area of some fibers, like those made from copolymers of acrylonitrile, is not uniform. Denier and tex are the weights of 9000- and 1000-m fiber, respectively.]... 

The properties of the fiber have been reported under two names Ardil in Great Britain and Sarelon in the United States. The fiber is light-cream colored in its natural state and has a soft hand luster and warmth similar to that of wool. The fiber has an affinity for dyes normally used on natural protein fibers. Solid shades of unions composed of wool and peanut protein fiber can be obtained. Fibers with tensile strengths of 0.8-1,0 gram per denier (dry) and of 0.3-0.5 gram per denier (wet) with elongation-at-break characteristics similar to wool have been made (4-6,8,11,13,33,46,55-56,58,61,69-70,73,76,77,85,86,93,95,98,123,125,126, 132,133,143,145,146,151,159,161,167,175-177,180,183,185,194,196-202, 206,208-218,220-227,229,232,235). 

NOTE g/d=grams per denier L-W=Lucas-Washburn Equations PET=poly(ethyleneterphalate). 

The breaking tenacity or more commonly, tenacity, is the breaking strength of a fiber or a yarn expressed in force per unit denier, that is, in grams per denier, calculated from the denier of the original unstretched specimen. 

Common units for specific stress are gram per denier or gram per tex. Denier is the unit of fiber or yam measurement equal to the weight in grams of 9,000 meters of fiber or yam, while tex is the unit of fiber or yam measurement equal to the weight in grams of 1,000 meters of fiber or yam. 

When specific stress is used in calculating the tensile modulus, the modulus unit becomes gram per denier or gram per tex. 

Fiber Strength (grams per denier) Modulus (grams per denier) Stram-at-Break (%)... 

A method for making rubber thread is to extrude and continuously vulcanize a flat sheet of rubber. The flat sheet is cut into individual strands with a rectangular cross section. For a sheet 0.030 in thick, strands are cut 0.060 in wide. Calculate the denier and the strength in grams per denier if the rubber compound has a density of 0.85 g/cm and a tensile strength of 3500 psi. 

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