Injection Toilet Brush Moulding

Injection Toilet Brush Moulding refers to a bathroom cleaning tool produced by manufacturing core structures such as brush handles and brush head bases through the plastic injection molding process, then assembling them with brush bristles (such as nylon filaments, PP filaments). Its core feature is using the injection molding process to realize the integrated molding of the ergonomic structure of the brush handle and the special-shaped adaptive design of the brush head (such as an arc-shaped base that fits the inner wall of the toilet). Compared with traditional manually spliced or metal toilet brushes, it has the advantages of moisture resistance, corrosion resistance, lightweight, and easy cleaning, which can efficiently remove stains on the inner wall of the toilet and adapt to cleaning needs in different scenarios such as homes, hotels, and public bathrooms.

P&M Injection Toilet Brush Moulding Introduction

A、Core Characteristics of Injection Toilet Brush Moulding

1. Moisture-Resistant and Corrosion-Resistant, Adapting to Bathroom Environment

Bathrooms are in a humid state for a long time, and cleaning requires contact with cleaning agents (such as toilet cleaners, acidic descaling agents). The plastic structure (brush handle, brush head base) of the injection toilet brush has excellent water resistance and chemical stability: common materials such as PP and ABS have no deformation or mildew in a long-term humid environment, and there is no corrosion or material precipitation on the surface after contacting acid-base solutions with a pH value of 2-12; compared with traditional metal brush handles (easy to rust, short service life), the normal service life of the injection toilet brush can reach 3-5 years, and there is no need to worry about cleaning pollution caused by rust of metal parts.

2. Special-Shaped Brush Head Design, No Dead Corners in Cleaning

The injection molding process can realize the customization of the complex special-shaped structure of the brush head base, accurately adapting to the arc contour of the inner wall of the toilet: for example, the brush head base is designed into an "L-shape" or "arc shape" to fit the transition area between the bottom and side walls of the toilet; some brush head edges are provided with thin protrusions for cleaning the gap dead corners such as the toilet water eye and sewage outlet; at the same time, the bristle implantation holes of the brush head base can be designed in zones according to density (the bristle density in the easy-to-dirty area of the toilet inner wall is increased by 30%), ensuring uniform pressure during cleaning and more thorough stain removal. Compared with the traditional flat brush head, the cleaning efficiency is increased by more than 40%, and it can avoid scratching the toilet glaze (the edge of the brush head is rounded, R0.5-R1.0mm).

3. Ergonomic Brush Handle, More Labor-Saving Operation

The brush handle of the injection toilet brush realizes the ergonomic design through integrated molding: the middle part of the brush handle is provided with anti-slip patterns (the friction coefficient is increased to more than 0.8 to avoid slipping with wet hands), and the diameter of the grip area is designed to be 30-35mm (adapting to the palm size of adults, reducing the grip pressure); the angle between the brush handle and the brush head is designed to be 120°-135° (conforming to the arm force angle during cleaning, reducing the waist force by 20% when bending over for cleaning); some long-handle styles (brush handle length 40-50cm) can realize standing cleaning without bending over, which is especially suitable for the elderly or people with waist discomfort.

4. Lightweight and Easy to Store, Convenient to Use

The plastic material (PP, ABS) of the injection toilet brush has a low density (0.9-1.1g/cm³), and the overall weight is controlled between 150-300g, which is only 1/2-2/3 of the traditional metal handle toilet brush, so the arm is not easy to fatigue during cleaning; at the same time, the tail of the brush handle can be designed with a hanging hole (diameter 5-8mm) or a magnetic structure, which is convenient for hanging storage (saving bathroom counter space) or magnetic adsorption on the metal bracket next to the toilet, avoiding pollution caused by the bottom of the brush handle touching the ground; some styles also integrate a brush head protective cover, which can cover the bristles during storage to prevent dust adhesion and odor diffusion.

B、Production Process of Injection Toilet Brush Moulding

1. Product Design and Mold DevelopmentFirst, determine the core parameters of the toilet brush according to the use scenario: household brushes focus on lightweight and aesthetics (multiple color options for the brush handle), while hotel/public bathroom brushes emphasize durability and easy cleaning (simple brush head structure, no complex gaps). Draw a 3D model through CAD software (such as SolidWorks), focusing on designing: the anti-slip pattern and grip arc of the brush handle (fitting the palm curve), the shape of the brush head base (adapting to the inner wall size of mainstream toilets, such as toilets with a diameter of 300-400mm), and the distribution of bristle implantation holes (hole spacing 2-3mm, ensuring dense bristles and not easy to fall off). In the mold design stage, use Moldflow software to simulate the injection molding process, optimize the gating system (the brush handle uses a side gate to avoid leaving gate marks on the surface; the brush head base uses a pin gate to ensure uniform filling of the special-shaped structure) and the cooling system (arrange water channels according to the thickness of the brush handle and brush head, cooling time controlled at 25-40s to prevent warping). The mold material is P20 pre-hardened steel (small and medium batch production) or H13 hot work mold steel (large batch production, service life ≥500,000 times), ensuring that the mold cavity precision reaches ±0.1mm and the surface roughness Ra≤0.8μm.

2. Injection Molding

Select raw materials according to component functions: the brush handle usually uses PP (low cost, good toughness) or ABS (high surface gloss, strong rigidity), and the brush head base usually uses PP + 10% glass fiber (enhancing wear resistance, avoiding deformation after long-term use). During raw material preparation, mix plastic particles with color masterbatches (such as basic colors like white and gray, adding ratio 1%-2%) and antioxidants (0.2%-0.5%, delaying aging) evenly, and put them into a dryer (temperature 80-100℃, time 2-3 hours) to remove moisture, avoiding bubbles after injection molding. In the injection molding stage, add the dried raw materials into the hopper of the injection molding machine, and set process parameters according to the material: PP material temperature 180-220℃, injection pressure 60-80MPa; ABS material temperature 220-250℃, injection pressure 70-90MPa; glass fiber reinforced PP material temperature 200-230℃, injection pressure 80-100MPa. The injection molding machine injects the molten plastic into the mold cavity through the screw, holds the pressure for 10-15s, then cools and sets, and finally demolds the blank through the ejection mechanism (ejector pins for the brush handle, ejector plates for the brush head base), and removes the gate residue after demolding.

3. Bristle Implantation and Assembly

The brush head base blank needs to be pretreated first: remove surface oil and impurities through ultrasonic cleaning, then apply hot melt adhesive in the bristle implantation holes (enhancing bristle adhesion to avoid falling off). Choose bristle materials suitable for cleaning needs: nylon 66 filaments (diameter 0.15-0.2mm, high softness, avoiding scratching the glaze) are commonly used for household brushes, and PP filaments (diameter 0.2-0.3mm, strong wear resistance, suitable for high-frequency cleaning) are commonly used for industrial/public bathroom brushes. Use an automatic bristle planting machine for bristle implantation, and adjust the bristle density by area (density of key cleaning areas on the toilet inner wall ≥50 filaments/cm², density of edge areas ≥30 filaments/cm²). After bristle planting, heat with hot air (temperature 120-150℃, time 5-10s) to cure the hot melt adhesive, ensuring that the bristle pull force ≥5N (tested by a pull tester to avoid falling off during use). In the assembly stage, connect the brush handle and the brush head base through thread connection (the bottom of the brush handle is designed with external threads, and the brush head base is designed with internal threads, with a fitting gap ≤0.1mm) or snap connection (interference fit to ensure firm connection without looseness). Some styles also need to install hanging hole accessories or magnetic sheets, and finally check whether the overall structure is stable and the bristles are neatly arranged.

4. Quality Inspection and Packaging

Quality inspection is carried out in multiple links:

Appearance Inspection : Check whether there are scratches, bubbles, color differences on the surface of the brush handle and brush head, whether the gate residue is completely removed, and whether the bristles are neatly arranged and free of broken filaments;

Structure Inspection : Test the connection strength between the brush handle and the brush head (apply 50N pull force, no loosening or breaking), and the bristle adhesion (randomly select 10 bristles, each with a pull force ≥5N);

Function Inspection : Simulate the toilet cleaning scenario, test the fit degree of the brush head to the arc surface (fit rate ≥90%), the stain residue rate after cleaning (≤5%), and at the same time test the anti-slip performance of the brush handle (no slipping when held with wet hands).

Qualified toilet brushes are packaged: a single product is individually packaged in a PE bag (to avoid transportation wear), and bulk packaging uses cartons (with built-in partitions to prevent products from colliding with each other). The packaging is marked with product specifications, materials, usage instructions and other information, and prepared for delivery.

P&M Injection Toilet Brush Moulding(Specification)

P&M Injection Toilet Brush Moulding Feature And Application

1.Household Bathroom Scenario

Core Requirements: Lightweight, easy to store, glaze protection, aesthetic adaptation to home style.

Product Features: Brush handles are mostly made of PP or ABS, with weight controlled at 150-200g for easy one-hand operation; brush heads are designed as a combination of "arc + sharp protrusion" (fitting the toilet bottom and water eye), bristles are made of nylon 66 filaments (soft without scratches); the tail of the brush handle has a hanging hole or magnetic sheet, which can be hung on the bathroom wall or magnetically attached to the toilet, saving counter space; colors are mostly white, light gray, and macaron colors, adapting to modern home styles.

2. Hotel and Homestay Scenario

Core Requirements: Durability, easy cleaning, uniform appearance, compliance with hygiene standards.

Product Features: Mid-to-high-end hotels mostly use ABS brush handles (strong rigidity, exquisite appearance) + glass fiber reinforced PP bases (wear-resistant), paired with nylon 66 filament bristles, with a service life of 3-5 years; economical hotels use PP brush handles + PP filament bristles to control costs; brush heads have no complex gaps (avoiding dirt accumulation), and can be fully rinsed and disinfected; appearances are mostly uniform color systems (such as white, black, hotel brand colors) to improve space cleanliness; some high-end styles have brush head protective covers to avoid dust adhesion during storage.

3. Public Bathroom Scenario

Core Requirements: High-frequency durability, anti-vandalism, easy maintenance, low cost.

Product Features: Brush handles are made of thickened ABS or glass fiber reinforced PP (thickness 3-5mm), impact-resistant and not easy to break; brush head bases are one-piece molded structures with no splicing gaps; bristles are made of PP filaments (wear-resistant, long service life), and the filament diameter is thickened to 0.25-0.3mm (anti-pulling); brush handles have no detachable parts (preventing loss or damage), and some styles are designed as wall-mounted fixed structures (avoiding theft); colors are mostly dark colors (such as dark gray, black), dirt-resistant and easy to care for, reducing cleaning frequency.

Customization Process

Factory&About US

NingBo Plastic Metal Product Co.,Ltd (P&M) is located in Yuyao, the so-called Mould City, Plastic Kingdom, in the southern tip of Hangzhou Bay Bridge,north of Shanghai, the east of Ningbo Port,tight double line of State Road 329 on land, sea and air trafic into a network to facilitate transport.

By the abundant technical strength,scientific management methods and good after-sales service, product deeply trusted and welcomed by customers from all over the world. P&M holds improved system of development and production, to achieve mold design, plastic products manufacturing and automatic production. Our main products is design and manufacturing of plastic mold, plastic product, metal product. 90% products of our enterprise are exported to America, Europe, Germany, Japan, Australia, etc. For many years, the company has been committed to the research of raw materials. The company has its own trademark and dozens of patents, providing more convenient technical support for mold making and product production. P&M started domestic business from 2008,named Shundi Mould Factory. And opened the international market from 2014. We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.

P&M adheres to market-oriented to the quanlity of life and focus on quality service and continuous development of new products,determined to establish a better corporate image,and our friends at home and abroad to carry a wide range of business exchanges and cooperation, create brilliant.

Packing

Packaging according to your needs

1. By air ,it takes 3-7 days for delivery.

The goods can be shipped by DHL , Fedex , UPS .

2. By sea ,the delivery time is based on your port.

To South East Asian Countries takes about 5-12 days.

To Middle east countries takes about 18-25 days.

To European countries takes about 20-28 days.

To American countries takes about 28-35 days.

To Australia takes about 10-15 days.

To African countries takes about 30-35 days.

P&M Bike parts, centered around children, balances safety, health, and fun, aiming to add a bright color to children's beautiful childhood. We look forward to working together with you to serve our children.

The path of a child's growth is paved with bricks and tiles.

FAQ

1.Who are we?

We are based in Zhejiang, China, start from 2014,sell to North America(30.00%),Southern Europe(10.00%),Northern Europe(10.00%),Central America(10.00%),Western Europe(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%). There are total about 51-100 people in our office.

2.How can we guarantee quality?

Always a pre-production sample before mass production;

Always final Inspection before shipment;

3.What can you buy from us?

Mould, Plastic Product, Metal Product, Dental Product, CNC machining.

4.Why should you buy from us not from other suppliers?

We main do all kinds of 3d design, 3d printing and plastic metal molds tooling and products. We have our own engineer and factory. One-stop supply: 3d design - 3d printing - mold making - plastic injection.

5.What services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;

Accepted Payment Currency: USD, EUR;

Accepted Payment Type: T/T,L/C,PayPal,Western Union,Escrow;

Language Spoken:English,Chinese,Spanish,French,Russian.

6.What are the characteristics of your service?

1. Your inquiry related to our products or prices will be replied within 24 hours.

2. Well-trained and experienced staffs to answer all your enquiries in fluent English.

3. Offering the support to solve the problem in the application or selling period.

4. Competitive prices based on same quality.

5. Guarantee samples quality same as mass production quality.