In 2011, the world-famous World Horticultural Exposition was held in Xi'an. This was another major international event held in mainland China after the 2008 Beijing Olympics and the 2010 Shanghai World Expo. It is a major opportunity to promote ecological civilization and enhance the country's image.

This grand event was approved by the Association of International Horticultural Producers (AIPH and the China State Council. The 2011 Xi'an Horticultural Expo was co-sponsored by the Shaanxi Provincial Government, the State Forestry Administration, the China Council for the Promotion of International Trade, and the China Flower Association, and was hosted by the Xi'an Municipal Government. It was held in Xi'an Chanba Ecological Zone from April 28, 2011 to October 22, 2011, lasting 178 days. A total of 109 outdoor exhibition gardens was set up, with an estimated 12 million visitors.

The total area of Xi'an Expo 2011 is 418 hectares, including 188 hectares of water area. In 2011, Xi'an, the origin of China, the imperial capital for thousands of years, the starting point of the Silk Road, the hometown of the Qin Terracotta Warriors, and the hometown of Zhong Kui, will once again focus on the world. This is the fourth time that the World Horticultural Expo come to China and settled in Xi'an, following Kunming in 1999, Shenyang in 2006, and Taipei in 2010.

Inspired by the 2010 Shanghai World Expo, the World Horticultural Expo officially issued two sets of Expo passports (including two ticket and two passports). Visitors holding these "passports" can get stamps from each venue to take a souvenir and enjoy the fun of "Around the World Horticultural Expo".

The "Expo Passport" is a designated carrier used to collect commemorative seals from each exhibition hall of the Expo. Its size and style are similar to ordinary overseas passports. According to the convention of the Expo, each venue is equipped with a stamp symbolizing its respective venue. Visitors holding the Expo passport can get a stamp for each "pavilion", thus turning a one-way visit into a two-way interactive experience. After the Expo, the passport will become a unique souvenir of the Expo, with great collection significance.

In order to have greater commemorative and collection significance, the first page of the passport is where you fill in personal information and paste photos. In the past, the technology was relatively immature, all information was filled in manually and photos were pasted by yourself. After all, many tourists may not carry their personal photos with them when they go out. Even though a passport full of stamps is enviable, the lack of photos of oneself still makes passport holders feel a little bit regretful.

With the progress of society and the development of science and technology, digital printing has gradually matured, which has greatly improved this current solution. People can collect photos on-site through digital cameras, and then process photos through computer terminals and print photos directly with personal information. Digital printing greatly improves the speed of collecting personal information and photos of the passport, allowing tourists to obtain their own personalized passports in the shortest time. 

However, as we all know, the finished product of the passport is printed on coated paper by a large printing machine. General dye inks or pigment inks cannot be printed directly on ordinary coated paper, and not waterproof and non-fading. With the development of science and technology, a weak solvent coated paper printing solution was gradually developed. Although this solution realizes the dream of printing directly on coated paper, but it is not environmentally friendly, and causes great damage to human body. Therefore, an environmentally friendly and energy-saving coated paper printing solution was urgently need.

Excellent inks have always been the tireless pursuit of people in the industry. However, all kinds of inks have their shortcomings. Through the unremitting innovation of HONGSAM people, in September 2010, a water-based pigment ink was born, it is water-based, environmentally friendly, with excellent color, strong adhesion and can be used in a wide range of medias.

The coated paper printing solution launched by HONGSAM was completely consistent with the theme of this Expo in terms of environmental protection, energy saving and low equipment consumption. As the latest and most environmentally friendly coated paper printing solution, HONGSAM water-based pigment ink coated paper printing solution developed quickly attracted people's attention, and also attracted the attention of the Expo passport printing department. Our superior products and careful service finally won the recognition of the Expo, and our HONGSAM digital coated paper printing solution finally solved the passport printing problem.

HONGSAM Water-based Pigment Ink was also used to print tourist guide signs for scenic spots, reflecting its wide media printing function and environmental protection concept.

According to official statistics, there were about 8.5 million visitors during the World Horticultural Expo 2011. Passports outputted by 5 flatbed printers were about 1.5 million copies. HONGSAM water-based pigment ink contributed to the success of the World Horticultural Expo 2011.