Industry News
A distinctive shape can give a familiar dog chew a completely different presence. At Lishui Tengyu Pet Food Co., Ltd., the plum blossom profile offers an interesting alternative to straight bars and traditional knotted bones. Twisted Collagen Chew Sticks combine a shaped outer profile with a spiral structure, bringing together mold design, forming, twisting, and drying in one production process. The finished appearance may look simple, but keeping the shape clear while maintaining the intended texture requires several manufacturing steps to work together.
The plum blossom outline begins with the mold. For Twisted Collagen Chew Sticks, the cavity needs to reproduce the curved petal sections while leaving enough material around each part of the profile to support the forming and drying stages.
Lishui Tengyu develops the mold according to the dimensions and structure of the chew rather than treating the outline as a surface decoration added at the end. The depth of the cavity, the spacing between the petals, and the relationship between the central section and outer edges all influence the final appearance.
Once the material enters the forming stage, the mold has to transfer these details consistently. This is particularly important for a multi-petal design because the outline needs to remain recognizable after the product moves through subsequent processing.
The spiral structure is another important part of the design. A straight chew can be formed around a relatively simple axis, while a twisted format requires the material to maintain its profile as it moves through a controlled rotation.
During production, Lishui Tengyu coordinates the shaped core with the twisting process so that the plum blossom outline remains visible along the length of the stick. The twist pitch also affects the visual rhythm of the product. A suitable pitch creates defined ridges without overwhelming the original flower-like profile.
For Twisted Collagen Chew Sticks, this combination of longitudinal twisting and cross-sectional shaping gives the product a more dimensional structure than a conventional straight chew. The raised areas also create different contact points as a dog bites and gnaws the stick, adding a physical characteristic to the design rather than relying on appearance alone.

Forming is only one stage of the manufacturing process. After the shape has been created, moisture and drying conditions influence how well the finished outline is retained.
Collagen chew material changes as moisture is removed, so drying needs to be managed in relation to the dimensions and structure established during forming. Lishui Tengyu monitors core moisture content and drying temperature as the product moves through production. This helps the shaped sections settle into their final condition without losing the characteristics established by the mold.
The same principle applies to Twisted Collagen Chew Sticks across different production batches. A stable process allows the shape, texture, and overall dimensions to remain closer to the established product specification rather than depending only on an individual development sample.
A shaped chew is not simply a standard stick with a decorative outline. The combination of the petal profile and spiral twist changes the way the material is presented to the dog's teeth during chewing.
The raised sections created by the twist provide a different surface structure from a smooth straight bar. At the same time, the solid collagen-based construction provides the underlying chew texture. This makes the geometry part of the product's physical characteristics.
At Lishui Tengyu, nutritional specifications remain an important part of the finished product. The collagen chew series maintains a minimum crude protein level of 35%, while crude fat and moisture are also monitored as part of routine production control. Shape development therefore takes place alongside the same broader quality requirements used for the product range.
The plum blossom format is one option within a wider range of shaped and twisted chew designs. For private-label and OEM programs, Lishui Tengyu can work with variations in size, thickness, flavor, packaging, and overall shape while maintaining the basic manufacturing concept.
Existing flavor directions include peanut, chicken, beef, milk, and mint, giving brands room to build related products around different taste preferences. Twisted Collagen Chew Sticks can therefore function as part of a broader SKU family rather than as a single isolated product.
This approach also allows product development to focus on the elements that matter most for a particular market. A brand may retain the same general chew structure while changing the dimensions or flavor, or it may use a different silhouette to create a separate visual identity.
The development of Twisted Collagen Chew Sticks shows how mold engineering can influence much more than appearance. The mold establishes the basic profile, twisting gives the product its spiral structure, and controlled drying helps stabilize the finished form. Nutritional and physical checks then provide additional control throughout production.
For manufacturers working on shaped collagen chews, these stages are closely connected. A successful product design needs to remain practical from the first mold trial through regular production, especially when the same concept is adapted into different sizes, flavors, or packaging formats.
The plum blossom design demonstrates how a relatively familiar collagen chew can take on a new identity through changes in geometry and forming. By combining established collagen chew production with dedicated mold development, Twisted Collagen Chew Sticks provide another direction for brands looking to expand a chew range with a more distinctive shape and structure.
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The company integrates production and R&D functions, and its core business focuses on the R&D and production of pet snacks and pet chews.