DNP Develops Two Types of Liquid Paper Cartons for Alcoholic Beverages, Designed for Optimum Recyclability

Easy to Dismantle Type, and Separable Type into Paper and Film

Dai Nippon Printing Co., Ltd. (DNP) has developed two types of liquid paper cartons for use with alcoholic beverages that come with spout plugs, and can be used for long-term storage of contents at room temperature. They include an easy to dismantle model that can be easily cut open at disposal, and a type that allows for the easy separation of the paper layer and the internal film layer. Sales will commence in December 2016.

Developmental Background

DNP developed a liquid paper carton series for use with milk, tea and alcoholic beverages in 1978, and has since expanded sales of these cartons as an alternative to bottles and cans. When recycling the materials it has so far been necessary to rinse the inside of the package, cut it open and remove the spout-plug. With cartons targeting alcoholic beverages, however, strong sealing and high level barrier film materials have been used from the standpoint of protecting the contents, and as a result, dismantling the carton after use has involved time consuming effort. At the same time, cases where aluminum foil, or aluminum vapor deposit film are used have presented the challenge of being unable to recycle the materials.  

To date, DNP has developed a variety of packaging materials designed to reduce environmental impacts, as well as ensure sustainability and biodiversity. And in this latest development, the Company has once again risen to the challenge, and by meticulous selection of materials, and improved package forms, has successfully developed two types of liquid paper cartons that are easy to break up for recycle.

New Product Features

Easy to dismantle carton

The pack can be dismantled in much the same way as dismantling a milk carton. i.e., by cutting along the dotted lines at the head of the carton with a pair of scissors. Cartons for use with alcoholic beverages use a spout-plug, making it difficult to cut open the head of the carton. In order to overcome this challenge, DNP has meticulously selected the materials for use in the head section and improved the design to allow for easier opening, even while maintaining the sealing properties of the head portion. As a result, the newly developed carton can be cut open with a simple pair of household scissors in the same manner as a milk carton. A transparent barrier film has been used on the inside of the carton, making it easy to separate the head and body of the carton for recycle, from the base and the spout-plug as combustible waste.

Carton facilitating easy separation of the paper layer and the internal film layer

This newly developed carton embodies DNP's unique lamination technology and improved packaging design know-how to facilitate the separation of the external paper from the interior barrier film such as aluminum, without using scissors. Pushing open the seal at the head of the carton pushes up a lip that can be handled to ease separation of the two parts, making it possible to separate the external paper from the film portion by pulling along the dotted lines to the base. Separation in this manner allows for the recycling of the head and body of the carton, and the disposal of the barrier film as combustible waste.

Looking Ahead

DNP will market these two types of cartons to the liquor industry, including distilled beverages, such as Shochu, and fermented beverages, such as Nihonshu (Japanese Sake), aiming for sales of approximately 500 million yen in FY 2017.

DNP has positioned Knowledge and Communication, Food and Healthcare, Lifestyle and Mobility, and the Environment and Energy as business growth areas, and is engaged in the creation of new values. As part of those efforts, the Company is forging ahead with the development of new products designed to reduce environmental impacts.
* Product prices, specification and service contents mentioned in this news release are current as of the date of publication. They may be changed at any time without notice.