One of my friend who work in wood furniture said, buying one piece of bamboo furniture is equivalent to saving one tree, as bamboo furniture not only solves the economic income problem of local bamboo farmers, but also solves the shortage of solid wood and make great contribution to the protection of forest resources, besides bamboo timer is low-carbon and environment-friendly, thus more and more bamboo furniture come to our life such as summer sleeping mats, tables, plates, shoe racks, trays, pen containers, etc.
But do you know one piece of bamboo was made into furniture? Today we will talk about it here.
Let’s take bamboo floor as an example, the production flow is as below:
bamboo → cutting off →
trimming outer bamboo joint →
slitting →
removing inner joint →
bamboo strip double-sided planning (removing bamboo green and yellow) →
steaming (insect prevention and mildew prevention treatment) or carbonization and coloring treatment →
drying →
bamboo strip fine planning →
bamboo strip sorting →
gluing →
blank assembly →
hot pressing and gluing →
sanding →
fixed length cutting off →
four-sided planning (fixed width and groove opening) →
double-end milling (transverse and longitudinal tenon opening) →
edge sealing paint spraying →
plain plate sanding →
sorting →
dust removal →
water-based primer →
hot air drying →
putty coating →
UV curing →
primer →
UV curing →
sanding
1.Raw Material Quality Check
If the bamboo age is less than 4 years, the internal components of bamboo are not lignified enough, with unstable strength, large dry shrinkage and wet expansion rate. So normally factory choose bamboo with more than 5 years.
Bamboo generally has thick root wall and thin tip wall. Therefore, fresh bamboo with diameter at breast height of more than 10cm and wall thickness of more than 7mm is generally selected as raw material.
2. Cutting off
Cut to length and split in stripe for processing
3.Bamboo Strip
Punching the original bamboo into regular bamboo strips
4、Bamboo strip double-sided planning (removing bamboo green and yellow)
The initial bamboo strips need to be finely shaves on all sides by four-sides planning to remove residual bamboo green, bamboo yellow and knife marks left by rough planning etc.
Only after such treatment can the bamboo strips and bamboo strips be glued firmly, without cracks, cracking and delamination.
Bamboo strips shall be sorted after fine planning, and bamboo strips with non-conforming processing size and large color difference shall be removed from the production line.
5、steaming (insect prevention and mildew prevention treatment) or carbonization and coloring treatment
The chemical composition of bamboo is basically the same as that of wood, mainly cellulose, hemicellulose, lignin and extraction substances. However, bamboo contains more protein, sugar, starch, fat and wax than wood, and is susceptible to erosion by insects and fungi under the condition of appropriate temperature and humidity.
Therefore, bamboo strips should be subjected to cooking treatment (natural color) or high temperature and high humidity carbonization treatment (brown) after rough planning to remove some extractives such as sugar and starch, and insect repellent and preservative should be added during treatment to prevent the growth of insects and fungi.
6、Dry
The moisture content of the steamed bamboo chips exceeds 80%, reaching a saturated state. The moisture content of bamboo directly affects the size and shape stability of finished bamboo products. In order to ensure the quality of bamboo floor products, the bamboo raw materials used for processing need to be fully dried before gluing.
The moisture content of bamboo should be controlled according to the local climate and use environment. Under normal circumstances should be controlled at 5-9%.
7、bamboo strip fine planning
Bamboo strips are finely planed to the required specifications.
8.Selection of bamboo strips
Sorting bamboo strips into different grades
9、hot pressing and gluing
Glue spreading and blank assembling: select high-quality environment-friendly adhesive, glue and evenly spread according to the specified glue spreading amount, and then assemble bamboo strips into blanks according to the required specifications.
10、fixed length cutting off
According to the required length Cut off the surplus
11、Plate separation
12、deburring
13、sanding
The surface of the blank plate is treated to make the surface smooth and the plain plate is fixed in thickness.
14、Painting
Environmental-friendly high-quality paint can not only maintain a healthy home environment, but also achieve aesthetic, waterproof and pest corrosion prevention. To ensure good paint adhesion, one layer of paint must be sanded, and after repeated sanding and painting, the surface of the manufactured floor can be ensured to be smooth, flat and free of bubbles.
15.Finished product inspection
Inspect the finished products. Adhesion, surface effect, abrasion resistance and glossiness.
