China on Thursday welcomed New Zealand's "impartial" test results on its kid pajama exports.

Wang Xinpei, a spokesman of the Ministry of Commerce (MOC), said the test results from an independent laboratory released by New Zealand's Commerce Commission proved that the kid pajamas produced in China were up to safety standards.

Wang said the Chinese government had attached great importance to the issue and kept a close eye on any development of the issue.

New Zealand's Commerce Commission issued a statement last week saying it had closed its investigation into The Warehouse "Red Stamp" brand pajamas.

The investigation was launched after two complaints regarding children who suffered burns while wearing the pajamas. The commission had the nightwear tested by an independent laboratory to determine whether they passed tests for garments designed to reduce fire danger.

Stuart Wallace, acting director of the commission's Fair Trading department had said the pajamas passed both the dimension requirements for close-fitting garments and the test for surface burn. They needed to meet both standards to qualify for the "low fire danger" label.

Citing Wallace, Wang said the label did not necessarily mean there would be no fire danger because any garment or fabric could catch fire and children should be kept away from fire.

"China is a responsible trade partner. We will face up to any quality problems of our products," Wang said.

"Chinese government and exporters bear the responsibility of protecting global consumers. We will carry out investigations into problematic products and keep improving the product quality." he said.

Earlier report by New Zealand media said that two local kids were burnt by flaming pajamas which were made-in-China.

Other reports in New Zealand media said some woollen and cotton pajamas for children, which were imported from China, had been found to contain much more formaldehyde than the criteria set by the World Health Organization.

The New Zealand government launched an investigation after a television programme reported last week that some clothing imported from China contained excessive levels of formaldehyde.

China's General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) immediately had the products tested and the tests showed they had reached appropriate standards.

Formaldehyde is used to prevent creasing in fabrics, but has also been linked to a range of health problems, including cancer.