Polylactic acid / cotton blended medical bed sheet

By using a polylactic acid/cotton blend structure in medical bed sheets, combined with spunlace technology and a plastic film waterproof layer, the problem of the difficulty in harmlessly degrading medical bed sheets has been solved. This has improved antibacterial properties, isolation performance, and breathability, and the discarded bed sheets are biodegradable, making them green and environmentally friendly.

CN223904685UActive Publication Date: 2026-02-13MODERN TEXTILE TECH INNOVATION CENT (JIANHU LAB)
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Patent Information

Application Number
CN202520050029.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-02-13
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Existing medical bed sheets are difficult to degrade harmlessly during the recycling process, increasing the environmental burden.

Method used

It adopts a polylactic acid/cotton blend structure, including a base material, an isolation layer and an antibacterial layer. The protrusions formed by polylactic acid coarse denier hollow fibers are fixed on the base material through a hydroentangling process to form isolation and antibacterial properties. Combined with a plastic film waterproof layer, it can improve breathability and comfort.

Benefits of technology

It improves the antibacterial and isolation properties of medical bed sheets, while also providing good breathability and comfort. Furthermore, the discarded bed sheets are biodegradable, do not produce harmful gases, and are environmentally friendly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a polylactic acid / cotton blended medical bed sheet which comprises a substrate material, an isolating layer is arranged above the substrate material, an antibacterial layer is arranged above the isolating layer, the isolating layer is protrusions which are fixedly connected to the substrate material through a spunlace technology, and the protrusions are made of polylactic acid coarse denier hollow fibers. The isolating layer and the antibacterial layer are arranged above the base material, and the bulges formed by the polylactic acid coarse denier hollow fibers are fixed on the base material by utilizing a spunlace process, so that the antibacterial property and the isolating property of the bed sheet are improved, cross infection can be effectively prevented, and meanwhile, the bed sheet has good air permeability and comfort; and the degradation of the waste bed sheet is more environment-friendly.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical bed sheet technical field, concretely is a kind of medical bed sheet of polylactic acid / cotton blend. BACKGROUND

[0002] Polylactic acid fiber is with corn, wheat, sugar beet and other agricultural products containing starch as raw material, after fermentation to generate lactic acid, then through polycondensation and melt spinning is made, polylactic acid fiber is a kind of synthetic fiber that can be planted, easy to plant, waste can be degraded in nature. He can be decomposed into carbon dioxide and water in soil or seawater by microorganism, and will not emit toxic gas when burning, will not cause pollution, is a kind of sustainable development ecological environmental protection fiber.

[0003] Medical bed sheet is a kind of very large consumption consumable, currently ordinary bed sheet is mostly made of polypropylene spunbond laminated film nonwoven fabric, mainly using polypropylene spunbond fabric as bottom, then prepared by laminating process, however, in the process of recycling, polypropylene spunbond fabric cannot be harmfully degraded, and the environmental burden is increased. UTILITARY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a kind of medical bed sheet of polylactic acid / cotton blend, solve the problems raised in the above background art.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model is realized by the following technical scheme: a kind of medical bed sheet of polylactic acid / cotton blend, including base material, the upper side of the base material is equipped with isolation layer, the upper side of the isolation layer is equipped with antibacterial layer, the isolation layer is the protrusion fixedly connected on the base material by water jet process, the protrusion is polylactic acid thick denier hollow fiber.

[0008] Preferably, the base material selects plastic film water barrier layer.

[0009] Preferably, the antibacterial layer is polylactic acid / cotton blend fabric, and the mass ratio of polylactic acid to cotton is 40 / 60.

[0010] Preferably, the apex of the protrusion is bonded to the antibacterial layer.

[0011] Preferably, the height of the protrusion is 0.5-1mm.

[0012] (III) beneficial effects

[0013] The utility model provides a kind of medical bed sheet of polylactic acid / cotton blend. It has the following beneficial effects:

[0014] The poly-lactic acid / cotton blended medical bed sheet provided by the scheme is provided with an isolation layer and an antibacterial layer above a base material, and the protrusions formed by the poly-lactic acid thick denier hollow fibers are fixed on the base material by using a water jet process, so that the antibacterial property and the isolation performance of the bed sheet are improved, cross infection can be effectively prevented, good air permeability and comfort are achieved, and the degradation of the discarded bed sheet is more green and environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a sectional view of the poly-lactic acid / cotton blended medical bed sheet.

[0016] In the figure: 1, base material; 2, isolation layer; 3, antibacterial layer; 21, protrusion. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the embodiments described are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Embodiment 1

[0019] The embodiment of the utility model provides a poly-lactic acid / cotton blended medical bed sheet, as shown in the figure, comprising a base material 1, an isolation layer 2 is arranged above the base material 1, an antibacterial layer 3 is arranged above the isolation layer 2, the isolation layer 2 is a protrusion 21 fixedly connected on the base material 1 through a water jet process, wherein the protrusion 21 is a poly-lactic acid thick denier hollow fiber, the height of the protrusion 21 is 0.8mm, the apexes of the protrusions 21 are all bonded with the antibacterial layer 3, the base material 1 adopts a plastic film water barrier, the antibacterial layer 1 is a poly-lactic acid / cotton blended fabric, and the mass ratio of poly-lactic acid to cotton is 40 / 60. Figure 1 The poly-lactic acid / cotton blended medical bed sheet provided by the embodiment can avoid liquid penetration to the mattress by selecting a plastic film water barrier as the base material 1, the protrusions 21 are formed between the base material 1 and the antibacterial layer 3 through a water jet process, which are used to isolate the base material 1 and the antibacterial layer 3, on the one hand, can store liquid, on the other hand, can store heat, the antibacterial layer 3 adopts a poly-lactic acid / cotton blended fabric, which not only has antibacterial property, but also has excellent air permeability. The poly-lactic acid / cotton blended medical bed sheet of the embodiment can be biodegraded after being discarded after being used for many times, can not produce harmful gas, and is green and environmentally friendly.

[0020]

[0021] ​Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polylactic acid / cotton blended medical bed sheet, characterized by: The application relates to an antibacterial material, which comprises a base material (1), an isolation layer (2) arranged above the base material (1), and an antibacterial layer (3) arranged above the isolation layer (2), wherein the isolation layer (2) is a protrusion (21) fixedly connected to the base material (1) through a water jet process, and the protrusion (21) is a polylactic acid coarse-diameter hollow fiber.

2. The polylactic acid / cotton blended medical bed sheet according to claim 1, characterized by: The base material (1) is a plastic film water isolation layer.

3. The polylactic acid / cotton blended medical bed sheet according to claim 1, characterized by: The antibacterial layer (3) is a polylactic acid / cotton blended fabric, wherein the mass ratio of polylactic acid to cotton is 40 / 60.

4. The polylactic acid / cotton blended medical bed sheet according to claim 1, characterized by: The apex of the protrusion (21) is bonded to the antibacterial layer (3).

5. The polylactic acid / cotton blended medical bed sheet according to claim 4, characterized by: The height of the protrusion (21) is 0.5-1 mm.