JPS5675830A - Preparation of record disc - Google Patents

Preparation of record disc

Info

Publication number
JPS5675830A
JPS5675830A JP15063579A JP15063579A JPS5675830A JP S5675830 A JPS5675830 A JP S5675830A JP 15063579 A JP15063579 A JP 15063579A JP 15063579 A JP15063579 A JP 15063579A JP S5675830 A JPS5675830 A JP S5675830A
Authority
JP
Japan
Prior art keywords
thermoplastic resin
semi
heat
printed paper
transparent thermoplastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15063579A
Other languages
Japanese (ja)
Inventor
Masao Saito
Masaru Kobayashi
Hiroyuki Kurakata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP15063579A priority Critical patent/JPS5675830A/en
Publication of JPS5675830A publication Critical patent/JPS5675830A/en
Pending legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To manufacture a record disc of high tone quality and with pictures by preparing surface material layers of heat-gelatinized (semi)transparent thermoplastic resin on both sides of a printed paper on both surfaces of which is applied or welded (semi) transparent thermoplastic resin and heat-pressing them.
CONSTITUTION: On the insides of upper and lower molds 1 and 2 are arranged stampers 3 and 4. Over the center axis 5 of the lower mold 2 are fitted the first surface material 6 of (semi)transparent thermoplastic resin heat-gelatinized beforehand, then a printed paper 8 on which letters, pictures, etc., are printed and on both surfaces of which are applied or welded (semi)transparent thermoplastic resin 7, 7, and further the second surface material 9 the same as the first surface layer in sequence, and when the molds 1 and 2 are closed and heat-pressed, the surface materials 6 and 9 flow radially from the center axis 5 outwards. Tension is exerted upon the printed paper 8 and it is deflected, but since the thermoplastic resin 7, 7 on both surfaces have been heated to a soft state, the surfaces of the stampers 3 and 4 are not damaged. By cooling the molds keeping them closed to unite the surface materials and the printed paper, a record disc with perfect sound groove forms, high tone quality and pictures can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP15063579A 1979-11-22 1979-11-22 Preparation of record disc Pending JPS5675830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15063579A JPS5675830A (en) 1979-11-22 1979-11-22 Preparation of record disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15063579A JPS5675830A (en) 1979-11-22 1979-11-22 Preparation of record disc

Publications (1)

Publication Number Publication Date
JPS5675830A true JPS5675830A (en) 1981-06-23

Family

ID=15501154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15063579A Pending JPS5675830A (en) 1979-11-22 1979-11-22 Preparation of record disc

Country Status (1)

Country Link
JP (1) JPS5675830A (en)

Similar Documents

Publication Publication Date Title
IT1087169B (en) METHOD FOR THE REPRODUCTION OF INFORMATION MEDIA MADE OF PLASTIC MATERIALS, AND MOLDING RESIN, SUBTRACT AND MATRIX USED IN THAT MEDOTO
JPH0117880B2 (en)
JPS53112732A (en) Photosensitive material with improved physical properties of film
EP0345419A3 (en) Heat-sensitive recording material
US4213927A (en) Method of making picture phonograph record
JPS5675830A (en) Preparation of record disc
JPS54137077A (en) Packaging material and its manufacturing
IL43466A (en) Method of making simulated oil paintings
JPS55124635A (en) Method for molding of multilayered product of rubbers with different qualities
JPS5675831A (en) Preparation of record disc
JPS5715921A (en) Manufacture of composite product through vacuum molding processing
US3247298A (en) Method for the production of sound records
JPS5524835A (en) Method of producing rotary grinding disc
JPS54100703A (en) Production of record disc
JPS5669126A (en) Method of manufacturing record disc
JPS5247080A (en) Air-permeable waterproof films and process for producing them
JPS56106893A (en) Transfer sheet
JPS56139932A (en) Manufacture of disc
JPS5683805A (en) Production of record disc with picture
JPS576715A (en) Method of integrally molding interior material for automobile
JPS55133922A (en) Adhering method of outmost layer for polypropylene composite resin
JPS5538536A (en) Hologram original plate for contact exposure reproduction
JPS5524836A (en) Method of producing rotary grinding disc
GB2032836A (en) Picture phonograph record and method of making same
JPS54154467A (en) Method of treating edge of furniture material by resin pouring