US 12,252,448 B1
Engineered stone and manufacturing method thereof
Cheng-Hsuan Lai, Taipei (TW); Wei-Min Chen, Taipei (TW); and Lei Lin, Taipei (TW)
Assigned to QUEEN CERAMIC INCORPORATION, Taipei (TW)
Filed by QUEEN CERAMIC INCORPORATION, Taipei (TW)
Filed on Feb. 22, 2024, as Appl. No. 18/585,022.
Claims priority of application No. 112150632 (TW), filed on Dec. 25, 2023.
Int. Cl. C04B 14/06 (2006.01); B28B 1/00 (2006.01); C04B 14/30 (2006.01); C04B 18/167 (2023.01); C04B 26/02 (2006.01); C04B 41/00 (2006.01); C04B 41/45 (2006.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C04B 103/54 (2006.01)
CPC C04B 41/4513 (2013.01) [B28B 1/005 (2013.01); C04B 14/06 (2013.01); C04B 14/303 (2013.01); C04B 18/167 (2013.01); C04B 26/02 (2013.01); C04B 41/0072 (2013.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01); C04B 2103/54 (2013.01)] 8 Claims
 
1. A manufacturing method of an engineered stone, comprising:
taking a photo of a natural stone slab to obtain a stone slab photo;
importing the stone slab photo into a color mapping software, wherein a background pattern and a vein pattern are designed, and a plurality of reference points are set based on the stone slab photo;
designing a stone mold based on the background pattern and the vein pattern, wherein a plurality of mold reference points are set in the stone mold based on the plurality of reference points;
forming a full-body stone slab with the stone mold, wherein a plurality of alignment marks is made on a front surface of the full-body stone slab, and the plurality of alignment marks corresponding to the plurality of mold reference points of the stone mold;
spraying the vein pattern onto a first surface of a paper with a weather-resistant ink;
cutting holes on the paper to form a plurality of reference point holes, and the plurality of reference point holes corresponding to the positions of the reference points of the vein pattern;
covering the first surface of the paper on the front surface of the full-body stone slab, and aligning the plurality of reference point holes on the paper with the plurality of alignment marks on the full-body stone slab, respectively; and
performing a thermal transfer process to transfer the vein pattern to the front surface of the full-body stone slab.