Pyongyang University of Publishing and Printing Industry has recently researched and introduced the satchel-decoration printing process by using an ink jet method based on the CTP technology.
The CTP technology can directly print the image data input in a computer on paper, metal, cloth, leather, glass and wood. It is widely used in the printing industry as this technology does not use film and chemical reagents.
Unlike the currently used screen printing method, the new printing process is simple and can bring printed images into line with original ones. Especially, all materials needed for the printing process are locally available ones.
In order to prevent diffusion in jet printing, one of the knotty problems in establishing the printing process based on an ink jet method, scientists completed a method of transforming the physicochemical property of printing substrate.
In addition, they introduced a rational coating method that meets technical indexes, thus improving brilliance and colour tone and obtaining unfading print images.
They also solved different technical problems including adjusting printing conditions to increase descriptive representation according to manuscript and harmonizing the amount of ink absorption and picture deviation according to the moving speed of printing plate so as to improve representation.
“Thanks to the newly-developed ink jet method for the satchel-decoration printing process, the printing cost has been lowered by one fifth as compared to previously, while further improving the quality of decoration printing,” said scientist Kim Chol Gyu.
Their research finding has been introduced into several bag factories including the Sinuiju Bag Factory.
More From Pyongyang Times
The Central Election Committee for the Election of Deputies to the 15th Supreme People's Assembly of the Democratic People's
March 17, 2026
The Central Election Committee for the Election of Deputies to the 15th Supreme People's Assembly of the Democratic People's
The First Session of the 15th Supreme People's Assembly of the DPRK will be convened in Pyongyang on March 22 2026. The SPA
March 17, 2026
The First Session of the 15th Supreme People's Assembly of the DPRK will be convened in Pyongyang on March 22 2026. The SPA
Senior Party and government officials went to sub-constituencies in different parts of the DPRK to take part in the election of
March 17, 2026
Senior Party and government officials went to sub-constituencies in different parts of the DPRK to take part in the election of
The First Session of the 15th Supreme People’s Assembly of the DPRK will be convened in Pyongyang on March 22 2026. The session
March 17, 2026
The First Session of the 15th Supreme People’s Assembly of the DPRK will be convened in Pyongyang on March 22 2026. The session
The election of deputies to the 15th Supreme People's Assembly of the DPRK took place at all the constituencies across the country
March 16, 2026
The election of deputies to the 15th Supreme People's Assembly of the DPRK took place at all the constituencies across the country
Dear voters,Workers and officials of the Chonsong Youth Coal Mine, who are working with devotion for the country’s prosperity at a
March 16, 2026
Dear voters,Workers and officials of the Chonsong Youth Coal Mine, who are working with devotion for the country’s prosperity at a
Tree planting was conducted across the country on the occasion of Tree-planting Day. Officials of the State Planning Commission,
March 16, 2026
Tree planting was conducted across the country on the occasion of Tree-planting Day. Officials of the State Planning Commission,
Working people’s organizations planted trees on the occasion of Tree-planting Day.Officials of the central committee of the youth
March 16, 2026
Working people’s organizations planted trees on the occasion of Tree-planting Day.Officials of the central committee of the youth
The respected Comrade Kim Jong Un sent a birthday spread to Kim Su Il living in Neighbourhood Unit No. 9 in Ryongjam-ri, Tanchon
March 16, 2026
The respected Comrade Kim Jong Un sent a birthday spread to Kim Su Il living in Neighbourhood Unit No. 9 in Ryongjam-ri, Tanchon
The international community is raising voices against Israel as it recently decided to officially register the land in the West Ba
March 15, 2026
The international community is raising voices against Israel as it recently decided to officially register the land in the West Ba
A long-range artillery sub-unit of the Korean People's Army in a western area conducted a firepower strike drill on March 14.
March 15, 2026
A long-range artillery sub-unit of the Korean People's Army in a western area conducted a firepower strike drill on March 14.
People began to move into new houses on Pyongyang’s Saeppyol Street. The respected Comrade Kim Jong Un attended the inaugural
March 15, 2026
People began to move into new houses on Pyongyang’s Saeppyol Street. The respected Comrade Kim Jong Un attended the inaugural
Kim Jong Un, general secretary of the Workers' Party of Korea and president of the State Affairs of the Democratic People's
March 15, 2026
Kim Jong Un, general secretary of the Workers' Party of Korea and president of the State Affairs of the Democratic People's
Russian President Vladimir Putin made public a letter on March 10 to set forth the tasks facing the State Anti-terrorism
March 15, 2026
Russian President Vladimir Putin made public a letter on March 10 to set forth the tasks facing the State Anti-terrorism
The 2026 Spring Amateur Bowlers Tournament took place at the Pyongyang Gold Lane from March 10 to 12. In the tournament, divided
March 15, 2026
The 2026 Spring Amateur Bowlers Tournament took place at the Pyongyang Gold Lane from March 10 to 12. In the tournament, divided
The afforestation work is being carried on positively throughout the country. In order to turn all the mountains of the country
March 14, 2026
The afforestation work is being carried on positively throughout the country. In order to turn all the mountains of the country
Russian presidential press secretary Dmitri Peskov at a press conference on March 8 denounced European countries for their attitud
March 14, 2026
Russian presidential press secretary Dmitri Peskov at a press conference on March 8 denounced European countries for their attitud
The respected Comrade Kim Jong Un received congratulatory messages and letters from different countries on the occasion of his
March 14, 2026
The respected Comrade Kim Jong Un received congratulatory messages and letters from different countries on the occasion of his
The central election committee for the election of deputies to the 15th Supreme People's Assembly of the Democratic People's
March 14, 2026
The central election committee for the election of deputies to the 15th Supreme People's Assembly of the Democratic People's
A stamp exhibition opened with due ceremony at the Korean Stamp Exhibition House in Pyongyang on March 12 in commemoration of the
March 14, 2026
A stamp exhibition opened with due ceremony at the Korean Stamp Exhibition House in Pyongyang on March 12 in commemoration of the
More Articles
