Electroplating of makeup brush aluminum ferrule

 In last article, we shared the information of makeup brush aluminum ferrule, due to the material characters and makeup brush requirements, most aluminum ferrules need to do surface treatment. For aluminum ferrule, the most popular surface treatment is electroplating. This article is the brief introduction of electroplating process for customers’ reference during OEM makeup brushes, so that customers can have better communication with makeup brush manufacturers, and have clear and specific QC standards after receiving makeup brush shipment from the manufacturers.

 
►Electroplating thickness

Decorative electroplating
 
1. Normal thickness: 0.5μm～3μm

1. Thin coating (0.5～1.5μm): for low-cost, fast-production light decoration (such as champagne gold, rose gold).
2. Standard coating (1.5～3μm): takes into account both gloss and durability, suitable for high-end makeup brushes.

2. Thickened coating (3～5μm): for makeup brushes require high wear resistance and scratch resistance (such as frequently used makeup brush handles).
 
Functional electroplating

1. Anti-corrosion coating (such as nickel base): 3~8μm, to enhance the corrosion resistance of aluminum substrate.
2. Wear-resistant coating (such as hard chrome): 5~15μm, used in high wear areas (need to be combined with anodizing pretreatment).

 
►Electroplating process

Pretreatment (key step, affecting bonding strength)

1. Degreasing: Alkaline solution is used to clean the oil stains on the surface of the aluminum tube.
2. Acid pickling and activation: Dilute sulfuric acid or phosphoric acid removes the oxide film to expose the fresh aluminum surface.
3. Zinc treatment (optional): Replace a layer of zinc on the aluminum surface to enhance the adhesion of subsequent coatings.
4. Chemical nickel plating (optional): Non-electrolytic deposition of a 1-2μm nickel layer as a base for electroplating.

Electroplating core technology

1. Hanging plating: Aluminum tubes are hung in the electroplating tank, suitable for single-piece high-precision plating (such as gradient electroplating).
2. Roller plating: Small batches of parts are placed in a drum for electroplating, with high efficiency but slightly lower uniformity.
3. Multi-layer electroplating (such as "nickel + chromium"):
   • Base nickel: 3~5μm (anti-corrosion, improve bonding strength).
   • Surface chromium/gold: 0.5~2μm (decorative, anti-discoloration).

Post-treatment

1. Passivation: Chromate seals the pores of the coating and enhances corrosion resistance.
2. Protective paint: UV varnish or transparent resin (optional, to improve wear resistance).

►Key process parameters

1. Current density: 0.5～3 A/dm², too high will cause rough coating and burnt coating
2. solution temperature:40～60℃(nickel plating solution), constant temperature control is required
3. Electroplating time:1～10 minutes(depending on thickness requirements),time is positively correlated with thickness
4. pH value:Nickel plating solution:4.0～4.8, too strong acidity will corrode aluminum substrate

  
►Testing methods and standards

Thickness
X-ray fluorescence (XRF): non-destructive, accuracy ±0.1μm.
Metallographic sectioning: destructive testing, highest accuracy (for arbitration)
 
Adhesion test
Scratch test: blade scratches, then tear tape, the coating does not fall off.
Thermal shock test: baking at 150℃ and then cooling suddenly, the coating does not crack.
 
Corrosion resistance
Salt spray test: No rust in neutral salt spray for 48 hours (ASTM B117)。
 
►Environmental protection and cost control

Environmental requirements

1. RoHS compliance: Hexavalent chromium is prohibited (trivalent chromium process is required).
2. Wastewater treatment: Wastewater containing nickel and chromium must be recycled separately to avoid heavy metal pollution.

Cost Control

1. For every 1μm increase in plating thickness, the cost increases by about 15% to 20%.
2. Multilayer electroplating (such as nickel + gold) is 30% to 50% more expensive than single-layer processes.

►Trends

Alternative processes:

1. PVD vacuum plating: no pollution, more uniform coating (thickness 0.1-2μm), but high equipment cost.
2. Aqueous electroplating: environmentally friendly electroplating solution gradually replaces traditional cyanide system.

Customized requirements:

1. Gradient color plating: achieved through mask or current density gradient.
2. Matte plating: adding matting agent to the plating solution or post-processing sandblasting.

 
The exact process parameters can be adjusted according to specific requirements (such as coating color, wear resistance level).

makeup brush aluminum ferrule

 As one of the important part of makeup brush structure, aluminum ferrule is a must-talk topic during OEM makeup brushes. Different customers have various demands on thickness, color, processing of aluminum ferrules. Most long-term cooperated customers will provide their specific requirements on the ferrule at the very beginning of custom makeup brushes, so that the makeup brush factory can produce accordingly. If you are new to the makeup brush industry, and would like to custom or OEM makeup brushes, this article is the brief introduction of material and processing technology of makeup brush aluminum ferrule for your reference:

 
►Thickness

Normal thickness

1. Range: 0.3mm～0.5mm
2. Features:Low cost, suitable for large-scale production.
3. Applications: most ordinary makeup brushes, portable makeup brushes, disposable or mid-to-low-end makeup brushes,taking into account lightweight and basic strength.

 
Thickened ferrule

Thickness Range: 0.6mm～0.8mm (up to 1.0mm for some customized requirements)

Features:

High strength and strong pressure resistance, suitable for high-end or long-term use makeup brushes.

The surface treatment effect is more stable (such as high-precision printing, electroplating, etc.).

Applications: high-end makeup brushes, limited edition products

 

►Processing

Raw material selection

1. Material: commonly used 3003 or 5052 aluminum alloy (corrosion-resistant, easy to form).
2. State: H14 or H24 (semi-hard state, balanced ductility and strength).

 
Stamping

1. Cold stamping: Aluminum coils are stamped into tubular blanks through a die.
2. Stretching: Multiple stretching (3 to 5 times) gradually reduces the diameter, increases the length, and controls the uniformity of wall thickness.

 
Annealing

1. Temperature: 300℃～400℃ (eliminate work hardening and restore aluminum ductility).
2. Time: 2～4 hours (adjusted according to furnace type and batch).

 
Surface treatment

1. Anodizing: form an oxide film (thickness 5～20μm), improve wear resistance and color adhesion.
2. Spraying/electroplating: matte, glossy or metallic texture effect (such as champagne gold, rose gold).
3. Printing process: silk screen printing, hot stamping or UV digital printing (need to control ink adhesion and scratch resistance).

 
 
Quality inspection

1. Wall thickness uniformity: ultrasonic thickness gauge sampling.
2. Surface defects: eye inspection or machine vision system inspection.

 
►Key process considerations

1. Balance between thickness and cost: Thickening the aluminum ferrule requires increasing the number of stretching and annealing processes, and the cost increases by about 20% to 30%.
2. Surface treatment matching: Thickened aluminum ferrules are more suitable for complex printing (such as gradient colors), but the thickness of the oxide film needs to be controlled to avoid brittle cracking.
3. Environmental protection requirements: Aluminum ferrules can be 100% recycled, but the electroplating process may involve heavy metals and must comply with RoHS standards.

 
►Industry Trends

1. Lightweight: Reduce thickness (such as 0.25mm ultra-thin tubes) through alloy optimization while maintaining strength.
2. Customization: The processing of special-shaped ferrules (ovals, polygons) requires adjustment of molds and stretching processes.
3. Intelligent detection: AI visual systems replace manual quality inspections to improve efficiency.

 
Before finalizing the makeup brush OEM orders, makeup brush manufacturers should deeply communicate with customers and fully understand customers’ exact specific requirements on the ferrules, and offer satisfied makeup brushes and support customers’ market explore.

The existing antibacterial technology on makeup brushes

 The demand on antibacterial makeup brushes has increased year by year, many makeup brush manufacturers and brands have put big efforts on the R&D of such antibacterial makeup brushes to improve their brand influence and explore new market share. During OEM makeup brushes and custom makeup brushes for brands and customers, we also have got so many inquiries on antibacterial bristles. This article is to briefly introduce the existing antibacterial technology on the makeup brush market for your information.

 
 
 
►Definition and principle of antibacterial bristles

Antibacterial bristles refer to makeup brush bristles that have been specially treated or added with materials to inhibit the growth of microorganisms such as bacteria and fungi. Its core principles are divided into two categories:

1. Active antibacterial: antibacterial agents (such as silver ions, zinc ions, and copper ions) are embedded in the bristles to destroy microbial cell membranes or interfere with DNA replication.
2. Passive antibacterial: Reduce bacterial attachment through physical structures (such as nanoscale surface textures).

 
►Mainstream antibacterial technologies

1. Inorganic antimicrobial agents (mainstream technology)

Type	Mechanism of action	Advantages and disadvantages	Representative brands/applications
Ag+	Releases Ag+ to destroy bacterial enzyme system	Highly effective and broad spectrum, but high cost and may become ineffective due to oxidation	Sigma（Premium series）
Zn²+	Inhibit microbial metabolism	High safety, but weak antibacterial strength	EcoTools（Part of the environmental protection line）
TiO₂	Photocatalytic decomposition of microorganisms (ultraviolet light activation required)	Environmentally friendly, but dependent on light conditions	Japan Hakuhodo (experimental product)

2. Organic antimicrobial agent

Type	Mechanism of action	Advantages and disadvantages	Application Cases
Quaternary ammonium compounds	Positive charge adsorption destroys cell membrane	Fast-acting, but may irritate sensitive skin	Professional makeup artist brush (niche brand）
Chitosan (Chitin)	Natural polysaccharides inhibit microbial growth	Biodegradable, but poor antimicrobial durability (approximately 3 months)	South Korea AMORTALS (organic line)

 
3. Physical antibacterial structure

1. Nanoscale grooves: mimic shark skin texture to reduce bacterial adhesion (such as the German Zahorik Design patent);
2. Superhydrophobic coating: creates a "lotus effect" on the bristle surface (regular maintenance required, easy to wear).

 

► Antibacterial effect and testing standards

International testing methods:

1. ISO 20743 (quantitative test of antibacterial properties of textiles);
2. AATCC 100 (American Association of Textile Chemists);
3. JIS L 1902 (Japanese Industrial Standard).

 
Typical data:

1. Silver ion bristles: antibacterial rate against Escherichia coli and Staphylococcus aureus >99% (24-hour test);
2. Chitosan bristles: antibacterial rate 85-90% (decreased to 70% after 48-hour test).

 
►. Market application status

1. Main application scenarios

1. People with sensitive skin: reduce acne and allergies caused by makeup brushes (such as Clinique antibacterial brush series);
2. Professional makeup artists: avoid cross infection (purchase by theaters, film and television crews);
3. Users in humid areas: inhibit mildew of brush hairs (focused on promotion in Southeast Asian markets).

2. Price and consumer acceptance

Type	Price range	Consumer pain points
Silver ion antibacterial makeup brush	$25-50	High prices vs. persistent doubt (“Is it worth the premium?”)
Chitosan natural antibacterial makeup brush	$15-30	Short-term efficacy, frequent replacement required
Nano physical antibacterial makeup brush	$30-60	Poor wear resistance and high maintenance cost

 
 

► Technical Challenges and Controversies

Safety Controversies:

1. Silver ions may penetrate the skin (EU SCCS recommends a concentration of <0.5%);
2. Organic antimicrobial agents have the risk of sensitization (such as quaternary ammonium salts causing contact dermatitis).

Durability of efficacy:

1. The antimicrobial agent is lost after washing (the effect is halved after 5-10 washes on average);
2. The physical structure wears out (the life of the nano coating is about 6 months).

 
Environmental contradictions:

1. Inorganic antimicrobial agents may pollute water bodies (silver ions are toxic to aquatic organisms);
2. The cost of degradable antimicrobial materials (such as chitosan) remains high.

 
►Future Development Direction
 
Composite antibacterial technology:

1. Silver ion + chitosan synergistic effect (extends antibacterial cycle);
2. Photocatalysis + super hydrophobic dual mode (under development by Kao, Japan).

 
Smart responsive materials:

1. Thermo-/hygro-sensitive release of antimicrobial agents (activated only during use);
2. Self-healing coatings (automatically repair nanostructures after wear).

 
Sustainable solutions:

1. Antibacterial ingredients extracted from agricultural waste (such as rice husk silica);
2. Replaceable makeup brush head design (antibacterial parts can be replaced separately to reduce waste).

 
►Representative product cases
 
Sigma Beauty Antimicrobial Collection：

1. Silver ion + polyester fiber, claimed antibacterial rate is 99.9%, unit price is $35-55;
2. Controversy: Third-party testing shows that the antibacterial rate drops to 89% after 10 washes.

 
EcoTools Renewal Series:

1. Zinc ion + bamboo charcoal fiber, focusing on environmental protection and low price ($12-20);
2. User feedback: The antibacterial effect is average, but the softness of the bristles is praised.

 
Shiseido Synchro Skin Smart Brush:

1. Nano titanium dioxide coating, must be used with a UV disinfection box ($120 set);
2. Technical highlights: The antibacterial rate increases by 30% after UV activation.

 
 
► Consumer Use Recommendations

Cleaning frequency: Even if you use antibacterial bristles, you still need to clean it 1-2 times a week (to avoid sebum accumulation);

Avoid exposure to the sun: Silver ion bristles are easily oxidized and ineffective in direct sunlight;

Sensitive skin test: Test on the inside of your wrist for 24 hours before first use.

The forecast and trend outlook of the global makeup brush market in 2025

 Makeup brush manufacturers should not only focus on makeup brush production, but also fully understand market trend which is the key to ensuring that product development and strategic direction match market demand. Manufacturers need to dynamically monitor industry reports, consumer behavior data and policy changes to timely adjust R&D, production and marketing strategies. For example, combining environmentally friendly material research and development with social media promotion can simultaneously meet policy compliance and young consumer preferences.

 
Based on the analysis of industry trends (such as Euromonitor, Statista, Grand View Research, etc.), changes in consumer behavior and technological innovation, the following is the forecast and trend outlook of the global makeup brush market in 2025；
 
Global makeup brush market in 2023 and 2024:
 

#	Country	2023 sales	2024 sales	Core drivers
1	China	About $1.2 billion	About $1.5 billion	The world's largest beauty market, e-commerce live streaming drives demand,domestically produced affordable makeup brushes account for 70%
2	USA	About $950 million	About $1.1 billion	Dominated by high-end brands, high demand for professional makeup artists,Rising demand for clean beauty
3	Japan	About $620 million	About $680 million	Japanese exquisite makeup culture, leading makeup brush craftsmanship,antibacterial brushes and nano-coating technology innovation
4	South Korea	About $480 million	About $520 million	K-Beauty trend, strong demand for portable makeup brushes,Air cushion powder puff + brush two-in-one product is hot selling
5	Germany	About $350 million	About $380 million	The largest market in Europe, preference for environmentally friendly natural materials
6	France	About $270 million	About $290 million	A concentration of luxury beauty brands
7	UK	About $230 million	About $240 million	Fast fashion beauty and professional makeup brushes are equally important
8	India	About $180 million	About $450 million	Emerging market, rapid growth in demand for affordable brushes

 

1. Market size and growth forecast in 2025

Overall size:
It is expected that the global makeup brush market sales will exceed US$11-12 billion, with an annual growth rate of 7-9% (Asia-Pacific and Latin America are the main growth engines).

 
Driving factors:
 

1. The expansion of the middle class in emerging markets (India, Southeast Asia, Brazil);
2. The rise of the male beauty market (increasing demand for men's foundation brushes and contouring brushes);
3. The popularity of beauty tutorials (YouTube and TikTok drive demand for professional tools).

 
Regional growth highlights:
  

Country	Forecast Growth	Growth Core Reasons
India	Annual growth rate 30%+	Affordable beauty products boom, e-commerce penetration rate increases
Southeast Asia	Vietnam, Indonesia market growth rate 20-25%	Generation Z demographic dividend, rise of local brands
Middle East	Saudi Arabia, UAE growth rate 15%	Luxury beauty products consumption, holiday gift demand

 

2. Makeup brush types and technology innovation forecast

Type Share Trends in 2025

1. Foundation brushes, 25%↓ (competition for air cushion and sponge substitution intensifies)
2. Eyeshadow brushes, 26%↑ (multi-color eye makeup and artistic makeup are popular)
3. Multi-function brushes, 12%↑ (emerging markets are dominated by "one brush for multiple uses")
4. Sustainable brushes, 20%↑ (EU environmental regulations force transformation)
5. Smart electric brushes, New category explosion (estimated to account for 5%)

 
Technological innovation

Smart makeup brushes:

1. Built-in AI chip (adjusts foundation dosage according to skin quality, such as the concept product of Revlon);
2. Warm brush head (improves skin care product absorption, Japan Shiseido has applied for a patent).

 
Environmentally friendly materials:

1. Plant-based synthetic hair (corn fiber, mushroom leather brush handle);
2. 100% biodegradable packaging (led by European brands).

 
Customized services:

1. 3D printing brush head (adapts to personal facial contours, Chinese start-ups are testing the waters);
2. DIY selection of bristle hardness/density (online customization platforms are emerging).

 
3. Consumer behavior and market differentiation

High-end vs. affordable market:

1. Europe, America, Japan and South Korea: High-end brushes (unit price $50+) account for more than 40%, with significant premiums on materials and design;
2. Emerging markets: $5-10 affordable brushes dominate (supply chain advantages in Yiwu China and India).

 
Channel changes:

1. Live e-commerce: China's "Tiktok, Kuaishou and Taobao" account for more than 60% of the global online sales of makeup brushes;
2. Subscription services: The "monthly order of brush boxes" model is growing in Europe and the United States (such as Ipsy and Birchbox).

 
Health needs:

1. Antibacterial bristles (silver ion coating) become standard;
2. Demand for hypoallergenic materials (for sensitive skin) increased by 20%.

 
 
4. Risks and Challenges

Supply Chain Pressure:

1. Rising prices of synthetic fibers (fluctuations in petroleum derivatives);
2. Animal hair brushes are boycotted by animal protection organizations (European and American brands are accelerating their transformation).

 
Policy Risks:

1. The EU plastic restriction order has been upgraded (30% of brush handles may be required to be recycled materials in 2025);
2. China's imported brushes have become more stringent in terms of quality inspection (heavy metal and fluorescent agent standards).

 
Intensified competition:
Traditional brands (MAC, Sigma) vs. emerging DTC brands.
 
During communication with customers on OEM makeup brushes and custom makeup brushes, as a professional makeup brush factory, we should keep sensitive to the global market trends and adjust the company direction accordingly. In this case, we can ensure we are always at the table instead of on the menu.

The FQC and OQC of makeup brushes

 The FQC (final quality control) and OQC (outgoing quality control) inspection items for makeup brushes can be summarized as follows:

 
FQC
 
Appearance inspection

1. Bristles:bristle arrangement, uniformity, purities or breaks, color consistency
2. Brush handle: surface smoothness, no sharp edges or flaws.
3. No glue residue, clear logo printing.
4. Tools: LED magnifier (20 times), colorimeter (ΔE＜1.5).

 
Functional test

1. Hair loss rate: brush 50 times on clean white paper, ≤3 hairs lost.
2. Elastic recovery: The bristles recover more than 90% of their original shape within 1 second after being flattened.
3. Powder pickup capacity: dip in calibration powder (such as talcum powder), weigh and compare the difference before and after dipping (need ≥0.5g).

 
Dimension and structure

1. Dimensional tolerances of brush handle length, diameter, etc.;
2. Connection firmness between brush head and brush handle (through pull-out force test).

 
Safety testing

1. Chemical safety: tested by a third party for heavy metals (lead, arsenic, etc.) and phthalates (compliant with EU REACH regulations).
2. Physical safety: sharp edge test (Rohs standard), bristle tip passivation (bristle tip curvature radius under a microscope > 0.1mm).

 
Packaging

1. Inner packaging: dust bag/box sealing, moisture-proof agent (humidity <30%), no printing errors.
2. Outer packaging: color box compression test (bearing 50kg without deformation), barcode scan rate 100%.

 
2. OQC inspection

Packaging integrity
The outer box is intact, the inner packaging is sealed and the accessories are complete (such as dust bags, instructions, etc.).

Batch sampling
Sampling according to AQL standards, focusing on expired products in stock (if more than 3 months, stricter inspection is required).

Document
Check whether the shipping documents (such as quality inspection reports, compliance certificates, packing lists) are complete.

Labels and compliance
The outer box label information (such as batch number, production date) is consistent with the order;
Comply with target market regulations (such as FDA, REACH, etc.).

Function retesting
Randomly sample and retest key performance (such as powder grabbing ability, safety).
 
3. Differences of FQC and OQC

1. FQC focuses on quality control at the end of the production process and must cover all types of product defects;
2. OQC focuses on risk control before shipment, focusing on quality problems that may arise during packaging, documents and inventory;

 
 
Batch management: Keep 5-10 samples per batch and keep them for 1 year for future reference.
 
Through the above process, the yield rate of makeup brushes can be effectively controlled (target ≥98.5%), while meeting the stringent requirements of high-end customers (such as professional makeup brands).

 
Kingyin is a professional Chinese makeup brush factory, with more than 15 years experience in makeup brush production and custom makeup brushes & OEM makeup brushes for worldwide customers and brands.
 
Kingyin has passed ISO9001, ISO14001, GMP,C-TPAT, FDA/ISO22716, BSCI and SEDEX/SMETA factory audit; with standard workshop, strict quality control and management system,which can ensure makeup brush production and quality.

IPQC in makeup brush QC process

 In the QC process of makeup brush manufacturers, IPQC (In-Process Quality Control) is the core part in ensuring quality, controlling costs and maintaining brand reputation during the production process of makeup brushes.

 IPQC overall process


Pre-production preparation

1. Check the production plan and bill of materials (BOM) to confirm that the bristles, ferrules, handles and other materials meet the specifications.
2. Confirm that the equipment parameters (such as tube pressing machine pressure, glue amount, baking temperature) are consistent with the process documents (SOP/SIP).
3. Check that the production environment (temperature, humidity, electrostatic protection) meets the requirements.

First piece inspection

1. First inspection of key processes: such as brush head shape after pressing tube, glue dispensing amount, LOGO printing position, handle vertical etc., need to be confirmed to match the sample.
2. Three-inspection system: worker self-inspection → team leader re-inspection → IPQC special inspection, stamp and release after passing.

On-Site Inspection

Frequency: 5-10 samples of key processes (such as head shaping, gluing, and hair trimming) are randomly inspected every 2 hours.

1. Operational standardization (such as whether the brush head is cleaned thoroughly and whether the hair trimming is done to remove the stray hair).
2. Equipment inspection (soldering iron temperature, electric screwdriver torque).
3. Material consistency (hair material, handle color match the order).

Defects

1. Identify and isolate defective products (such as split hairs, glue overflow), and trace the same batch of products.
2. Trigger abnormal process: When the defective rate exceeds 3%, issue a "Quality Abnormality Form" and require the engineering department to analyze and improve.

Final piece inspection and record

1. At the end of production, spot check the final piece to ensure that the entire batch of products has no batch defects.
2. Organize inspection records, first inspection reports, and defect statistics tables, and archive them for traceability.

Specific control points:

Brush head production process

1. Hair shaping: Manual shaping makeup brush head through special molds (cup) to ensure that the hair head has uniform curvature and clear layers;
2. Trimming and shaping: Use mold to ensure that the hair head shape is consistent, without stray hair or split ends.
3. Wire wrapping : Tie the hair head according to the brush type to prevent loose hair; after thread removal, the hair shape needs to be trimmed again.
4. Removing loose hair: Remove loose hair scraps through centrifuge or manual combing to avoid later bristle falling.

Assembly and gluing

1. Angle and symmetry: The angle tolerance between the brush head and the brush handle is ≤2°. Symmetrical brushes (such as blush brushes) require visual inspection equipment to assist in calibration.
2. Gluing: The amount of glue used must be accurate (such as 0.07-0.53g/piece), and the glue gun temperature must be controlled at 120-150℃ to prevent overflow or degumming.
3. Baking: The setting temperature is 80℃±5℃ for 12 hours to avoid deformation of the brush head.
4. Connecting: After assemble the brush head and the handle, rotate 360° to check if any problem such as tilted head or gaps, and wipe off excess glue.
5. Glue strength: When glue connecting the brush head and the ferrule, the glue (epoxy resin or environmentally friendly glue) must pass the tensile test (such as ≥5kg tensile force without falling off).

Cleaning and disinfection

1. Dust removal and cleaning: The brush head needs to be ultrasonically cleaned to remove dust and broken hair, and the amount of residual hair is ≤0.1%.
2. Disinfection: For animal hair, use ultraviolet light or ozone disinfection to ensure microbial indicators (such as total colony count <100CFU/g).

Surface and packaging

1. Printing: LOGO printing must be clear , and must pass 5 tape peeling tests to ensure no fading; the position and clarity of the inkjet coding must be consistent with the sample.
2. Surface treatment: Check whether the polishing is smooth and burr-free, and whether the paint/electroplating layer is uniform and free of bubbles.
3. Appearance: fully inspect the bristle firmness, handle scratches and other appearance issues before packaging.

 Common problems and solutions

1. Hair loss: Adjust glue gun pressure, refill glue and extend curing time
2. Hair head deformation : Add shape-fix and drying process
3. Brush head crook: Recalibrate cup mold and add head shaping process
4. Brush handle broken: Replace to tough material and strengthen injection temperature control
5. Handle painting peeling: Extend drying time and control workshop humidity ≤60%
6. Printing blurred: Use UV curing ink or increase surface treatment

Kingyin is a professional Chinese makeup brush factory, with more than 15 years experience in makeup brush production and custom makeup brushes & OEM makeup brushes for worldwide customers and brands.

Kingyin has passed ISO9001, ISO14001, GMP,C-TPAT, FDA/ISO22716, BSCI and SEDEX/SMETA factory audit; with standard workshop, strict quality control and management system,which can ensure makeup brush production and quality.