With the maturity of network technology, the application of QR codes in product packaging has become more and more extensive. In the actual application process, the QR code has several key parameter settings: 1. QR code size setting: QR code size specification. For example, cigarette pack printing strip packaging is commonly used: blank 18mm × 18mm, black code 15mm × 15mm, default margin 1.5mm (black code edge to blank edge distance). Box packaging is commonly used: white space 15mm × 15mm, black code 12mm × 12mm, default margin 1.5mm (black code edge to blank edge distance). 2. QR code direction setting There are 3 positioning patterns in the QR code. The QR code can be quickly read from any direction of 360 °. However, the direction of the QR code must match the printed standard. 3. QR code version setting Two-dimensional codes (referred to temporarily as QR codes here) have different versions (types) of 1 ~ 40, and each version has a unique symbol structure (symbols refer to the square black and white dots that constitute the QR code). "Symbol structure" refers to the number of symbols in a two-dimensional code. Starting from 21 symbols × 21 symbols, the vertical and horizontal directions are incremented by 4 symbols each, until the version is 177 symbols × 177 symbols. 4. QR code correction level setting The two-dimensional code has an "error correction function", even if part of the code is dirty or damaged, the data can be recovered. Data recovery is based on codewords (the units that make up internal data. In the case of QR codes, every 8 bits represent 1 codeword), and can correct up to about 30% of errors (depending on the degree of dirtiness and damage, it also exists Unrecoverable situation). You can choose from four error correction levels: "L", "M", "Q", and "H". The Blush brush is a makeup tool used to apply blush in makeup. There are many styles, choosing the right blush brush can make facial makeup more delicate.
Blush Brush Always Used Cream Blush Brush,Powder Blush Brush,Ultra Plush Blush Makeup Brush,Blush Brush Tapered etc.
Schematic diagram of QR code 
Schematic diagram of cigarette pack QR code 
Schematic diagram of the box QR code
A good blusher also needs an easy-to-use blush brush to achieve the maximum polishing effect.
The brush basically consists of three parts: a brush handle, a metal joint handle and bristles.
The brush handle is divided into a long handle and a short handle. The length of the handle can be selected according to the different makeup habits of each person. Soak in water for a long time to avoid shortening the service life of the brush;
The bristles are the most important part of the brush, which can be divided into natural animal hair and synthetic hair: animal hair is very soft and feels comfortable to use; while synthetic hair is harder, but has better elasticity.
It is necessary to choose the appropriate bristle material according to the different functions of the brush. The blush brush needs to be thick and light. The animal hair brush is the most suitable. The bristles should be large, soft and well-made.
Cream Blush Brush,Powder Blush Brush,Ultra Plush Blush Makeup Brush,Blush Brush Tapered
Jilin Xiangqi Technology Co., Ltd , https://www.xqccosmetics.com