Butt-Weld Thermal Splicer for Polyester Motion-Picture Films

Metadata

Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The editing, assembly, and convenient use of motion-picture film requires that film splices be easily made, and be invisible in the projected image. In those applications when polyester film base is preferred for its balance of physical properties, splicing of such film base has not yet become convenient. Thermal weld splices can be produced on polyester, however, and the simplicity of one procedure has now been demonstrated with a prototype tabletop unit for the thermal butt-weld splicing of 35mm polyester motion-picture film. The welding process employs radiant heating to achieve fusion. The film is initially positioned and trimmed to lengths that provide about 0.035 in of additional length in the splice area, compressed into a butt-weld after two seconds of heating. The excess length is forced out of the film plane into a bead, which is then skived away. The necessary orientation and crystallinity of the polyester base are maintained over most of the splice area by controlled, rapid heating and cooling. A group of tests has been developed to evaluate both the weld and its adjacent areas, and has been correlated with practical use. Design data are presented.
Publication Date: 1971-02-01
DOI: 10.5594/J13530
Link: https://doi.org/10.5594/J13530
Author(s): C. O. Stoutz, F. J. Kolb

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J13530.json

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

C. O. Stoutz and F. J. Kolb; Butt-Weld Thermal Splicer for Polyester Motion-Picture Films, Journal of the SMPTE ( Volume: 80, Issue: 2, February 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J13530

Snippet:

C. O. Stoutz and F. J. Kolb; Butt-Weld Thermal Splicer for Polyester Motion-Picture Films, Journal of the SMPTE ( Volume: 80, Issue: 2, February 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J13530

HTML (ISO 690 compliant)

Preview:

Snippet:

<span class="citation">C. O. Stoutz and F. J. Kolb; <cite>Butt-Weld Thermal Splicer for Polyester Motion-Picture Films</cite>, Journal of the SMPTE ( Volume: 80, Issue: 2, February 1971); SMPTE, 1971. Available at <a href="https://doi.org/10.5594/J13530" target="_blank" rel="noopener">https://doi.org/10.5594/J13530</a></span>

SMPTE's HTML Pub

Preview:

C. O. Stoutz and F. J. Kolb; Butt-Weld Thermal Splicer for Polyester Motion-Picture Films, Journal of the SMPTE ( Volume: 80, Issue: 2, February 1971); SMPTE, 1971
doi: 10.5594/J13530
url: https://doi.org/10.5594/J13530

Snippet:

<li>
C. O. Stoutz and F. J. Kolb; <cite id="bib-10-5594-j13530">Butt-Weld Thermal Splicer for Polyester Motion-Picture Films</cite>, Journal of the SMPTE ( Volume: 80, Issue: 2, February 1971); SMPTE, 1971
<span class="doi">10.5594/J13530</span>
</li>