Claims
- 1. A method for producing a reinforced, double-faced corrugated board having a reinforced area of lesser width than the width of the entire board, said method comprising:
- coating a second corrugating layer on one side with an adhesive coating;
- contacting the adhesive-coated side of said second corrugating layer with one side of a first corrugating layer of greater width than said second layer;
- heating the resultant assembly;
- subjecting the heated assembly to moist heat;
- corrugating the moistened assembly between heated corrugating rollers and applying a second adhesive coating to one side of said first and second layers following the corrugating process, said adhesive being applied over said second corrugated layer and said first corrugated layer surrounding said second layer;
- affixing a bottom facing liner of substantially the same width as said first corrugated layer against the adhesive-coated side of said first and second corrugated layers; and
- affixing, by means of an adhesive coating, a top facing liner of substantially the same size as said first corrugated layer to the second side of said first corrugated layer opposite the side to which said second corrugated layer is affixed, said top liner being affixed after said bottom liner is affixed.
- 2. A method as claimed in claim 1, wherein said contacting and said heating of the resultant assembly are conducted simultaneously on a heated roll means.
Parent Case Info
This is a division of application Ser. No. 52,581, filed June 27, 1979, now U.S. Pat. No. 4,274,905, which is a division of application Ser. No. 853,568, filed Nov. 21, 1977, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
2885138 |
Brackett et al. |
May 1959 |
|
Divisions (2)
|
Number |
Date |
Country |
Parent |
52581 |
Jun 1979 |
|
Parent |
853568 |
Nov 1977 |
|