Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for testing hard drying time of waterborne wood paint for furniture

A technology of water-based wood lacquer and testing method, which is applied in the preparation of test samples, instruments, measuring devices, etc., and can solve the problems of drying energy consumption, production cost, paint film quality, finishing product stability, subsequent processing performance, water-based The drying time of wood lacquer is not scientific and accurate enough to achieve the effect of avoiding misjudgment and accurate measurement

Active Publication Date: 2018-11-06
NANJING FORESTRY UNIV
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing test methods are not scientific enough to grasp the drying time of water-based wood paints scientifically and accurately, which not only affects the quality of the paint film, the stability of the finished product, and the subsequent processing performance, but also affects the drying energy consumption and production costs, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for testing hard drying time of waterborne wood paint for furniture
  • Method for testing hard drying time of waterborne wood paint for furniture
  • Method for testing hard drying time of waterborne wood paint for furniture

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0029] A test method for the solid drying time of water-based wood paint for furniture, comprising the following steps:

[0030] Step 1, evenly coating the water-based wood paint on the wood sample, where the water-based wood paint is preferably water-based polyurethane paint. The samples were placed in a constant temperature and humidity box for drying. Among them, the wood sample is selected as plywood, and its length×width×thickness specification is 100-200mm×100-200mm×3mm, preferably 100mm×100mm×3mm. The range of coating amount is controlled at 80~140g / m 2 , preferably 80g / m 2 . The operating temperature of the constant temperature and humidity chamber is 30-60°C, preferably 30°C; the relative humidity is 35-65%, preferably 35%.

[0031] Step 2, during the drying process, regularly take out the wood sample from the constant temperature and humidity chamber, and immediately cut small samples from the wood sample, specifically once every two minutes. At the same time, c...

specific Embodiment 2

[0034] A test method for the solid drying time of water-based wood paint for furniture, comprising the following steps:

[0035] Step 1, evenly coating the water-based wood paint on the wood sample, where the water-based wood paint is preferably water-based acrylic paint. The samples were placed in a constant temperature and humidity box for drying. Among them, the wood sample is selected as plywood, and its length×width×thickness specification is 100-200mm×100-200mm×3mm, preferably 200mm×200mm×3mm. The range of coating amount is controlled at 80~140g / m 2 , preferably 140g / m 2 . The working temperature of the constant temperature and humidity box is 30-60°C, preferably 60°C; the relative humidity is 35-65%, preferably 65%.

[0036]Step 2, during the drying process, regularly take out the wood sample from the constant temperature and humidity chamber, and immediately cut small samples from the wood sample, specifically once every two minutes. At the same time, continue to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for testing hard drying time of waterborne wood paint for furniture. The method comprises the following steps: S01, a wood sample is uniformly coated with the waterborne wood paint, the sample is placed in a constant-temperature and constant-humidity chamber for drying; S02, the wood sample is taken out of the constant-temperature and constant-humidity chamber regularly in the drying process, and a small sample is cut from the wood sample instantly; S03, the small sample obtained in S02 is placed in low-field nuclear magnetic resonance equipment, an attenuationspectrum of the small sample is tested by a CPMG pulse sequence, then inversion is performed on the attenuation spectrum by Cotain software, and a transverse relaxation time spectrum of the small sample is obtained; S04, the transverse relaxation time spectrum of the small sample in the drying process is analyzed, the longest peak of relaxation time belongs to moisture, a first value in the attenuation spectrum obtained each time is taken as data, a scatter diagram is made, and the time corresponding to an inflection point of the curve is the hard drying time of the sample. The method for testing the hard drying time of the waterborne wood paint for the furniture is precise, convenient, high in efficiency and wide in application range.

Description

technical field [0001] The invention relates to a test method for the solid drying time of water-based wood lacquer for furniture, and belongs to the technical field of water-based wood lacquer drying in the field of wood and bamboo processing. Background technique [0002] With the enhancement of people's awareness of environmental protection and the strict control of organic volatiles in furniture decoration and other industries, water-based paint has ushered in a huge space for development, occupying more and more market shares in the wooden furniture industry, and has broad application prospects. Compared with oil-based wood paint, water-based wood paint uses water as the dispersion medium, and the drying of water needs to consume more energy and time to form a continuous paint film. Therefore, fast and accurate determination of the drying time of water-based wood coatings is very important. At present, after water-based wood paint is coated on wood materials, the surfa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N24/08G01N1/28
CPCG01N1/28G01N1/286G01N24/08G01N2001/2873
Inventor 詹天翼吕超张耀丽丁涛卢晓宁杨传波戴慧丹
Owner NANJING FORESTRY UNIV