MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B)

Introduced: September 1968

Description

B31B covers manufacturing processes and machinery for producing containers, boxes, tubes, and similar hollow articles from paper, cardboard, and paper-like materials. This classification encompasses folding, gluing, forming, and assembly techniques used to create rigid or semi-rigid packaging structures, including corrugated boxes, folding cartons, paper bags, and composite containers. Technologies within this scope range from manual to fully automated systems for die-cutting, scoring, creasing, and bonding paper-based materials into functional containers. Related classes such as B31D address making other paper articles (e.g., envelopes, labels), while B65B covers filling and closing containers after manufacture.

Title

Titles differ between systems:

IPC: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER

CPC: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B)

Full Title

Full titles differ between systems:

IPC:

MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER

CPC:

MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B)

Of 20 combined children, 2 exist in both systems.

10 codes are CPC-only extensions, 8 exist only in IPC.

Note: 10 CPC extensions are marked as secondary classification only.

IPC defines codes here since 2017.

Child Classifications

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B31B 100/00 Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs since 2017 IPC only IPC only
B31B 105/00 Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs since 2017 IPC only IPC only
B31B 110/00 Shape of rigid or semi-rigid containers since 2017 −4 IPC IPC only IPC only
B31B 120/00 Construction of rigid or semi-rigid containers since 2017 −7 IPC IPC only IPC only
B31B 150/00 Flexible containers made from sheets or blanks, e.g. from flattened tubes since 2017 −2 IPC IPC only IPC only
B31B 155/00 Flexible containers made from webs since 2017 IPC only IPC only
B31B 160/00 Shape of flexible containers since 2017 −3 IPC IPC only IPC only
B31B 170/00 Construction of flexible containers since 2017 −3 IPC IPC only IPC only
B31B 2100/00 Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs 2nd only +1 CPC CPC only CPC only
B31B 2105/00 Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs 2nd only +2 CPC CPC only CPC only
B31B 2110/00 Shape of rigid or semi-rigid containers 2nd only +4 CPC CPC only CPC only
B31B 2120/00 Construction of rigid or semi-rigid containers 2nd only +10 CPC CPC only CPC only
B31B 2150/00 Flexible containers made from sheets or blanks, e.g. from flattened tubes 2nd only +5 CPC CPC only CPC only
B31B 2155/00 Flexible containers made from webs 2nd only +3 CPC CPC only CPC only
B31B 2160/00 Shape of flexible containers 2nd only +3 CPC CPC only CPC only
B31B 2170/00 Construction of flexible containers 2nd only +3 CPC CPC only CPC only
B31B 2241/00 Making bags or boxes intended for a specific use 2nd only +7 CPC CPC only CPC only
B31B 2247/00 Manual operations for making bags or boxes 2nd only CPC only CPC only
B31B 50/00 Making rigid or semi-rigid containers, e.g. boxes or cartons since 2017 +5 CPC IPC+CPC Available in IPC and CPC
B31B 70/00 Making flexible containers, e.g. envelopes or bags since 2017 +7 CPC IPC+CPC Available in IPC and CPC