Sanitary napkin back wood pulp paper roll is a key material used in the production of sanitary napkins or pads. It is used primarily as a backing layer that prevents leakage while ensuring comfort. Here's a general specification and description of the material:
Specification:
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Material Composition:
- Made primarily from wood pulp, which is derived from natural wood fibers. It is typically bleached to ensure cleanliness and a light color, contributing to hygiene.
- The wood pulp used is often processed into fluff pulp, which is highly absorbent, lightweight, and soft.
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Roll Size:
- Width: Typically ranges from 20 cm to 100 cm or more, depending on the manufacturer’s specifications.
- Length: Can range from 500 meters to several kilometers, depending on the production needs.
- The paper is rolled in a continuous sheet form to facilitate easier processing during manufacturing.
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Thickness:
- Varies but is generally 0.2mm to 0.5mm thick, depending on the intended end-use.
- Thickness can affect both the comfort and strength of the napkin.
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Weight:
- Usually weighs 70-200 grams per square meter (gsm), depending on the desired absorbency and strength.
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Absorbency:
- The pulp is highly absorbent, contributing to the sanitary napkin’s ability to hold fluid and keep the user dry.
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Color:
- It is typically white, as it’s bleached during the production process to maintain hygiene and ensure there are no colorants that could irritate sensitive skin.
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Pore Structure:
- The paper roll is designed with a porous structure to ensure fluid retention, and it may have enhanced absorbency to keep the napkin dry and leak-proof.
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Softness:
- The back pulp paper should be soft to the touch, as it makes up the side that comes in contact with the user's skin.
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Strength:
- Should have enough tensile strength to prevent tearing during use. Typically, this paper should be strong enough to maintain the napkin’s structural integrity, even when it is wet.
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Other Treatments:
- Coating: Sometimes, a polymer coating or hydrophobic treatment is applied to the wood pulp paper to prevent liquid from passing through. This enhances the leak-proof quality of the sanitary napkin.
- Antimicrobial Treatment: Some manufacturers apply antimicrobial agents to the paper to reduce bacteria growth.
Description:
Sanitary napkin back wood pulp paper rolls serve as a base layer in sanitary pads, positioned between the absorbent core (usually a combination of absorbent fluff pulp and superabsorbent polymers) and the outer layers (often made from nonwoven fabric). This back layer plays a crucial role in providing leakage protection and keeping moisture from leaking onto clothing or bedding.
- The porous nature of the wood pulp allows it to trap liquids, while the hydrophobic coatings prevent leakage from the back of the napkin.
- The fluff pulp used is typically processed to enhance its absorbent capacity and softness, ensuring that the product remains comfortable while still offering high absorbency.
- This material is designed for high-volume, continuous production to ensure consistency in every napkin and to improve cost-efficiency for large-scale sanitary napkin manufacturers.
Common Uses:
- Sanitary Napkins/Pads: As a back sheet for protection against leaks.
- Diapers: Used as a part of the back layer in disposable baby diapers.
- Incontinence Products: Used in pads and liners designed for adult incontinence.
The key to a successful sanitary napkin back wood pulp paper roll lies in achieving the right balance between absorbency, comfort, and leakage protection, making this an essential component of sanitary product manufacturing.