CN204698813U - A kind of bio-degradable expendable nursing materials - Google Patents

Abstract

This utility model relates to a kind of bio-degradable expendable nursing materials, comprise surface layer, sandwich layer and bottom, surface layer adopts the non-woven fabrics be made up of acid fiber by polylactic or the non-woven fabrics being mixed with wood pulp cellulose by acid fiber by polylactic and make, sandwich layer comprises the first absorbed layer and the second absorbed layer that from top to bottom arrange in turn, first absorbed layer and the second absorbed layer all adopt and are mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, and are evenly impregnated with water absorbing polymer particle respectively in the first absorbed layer and the second absorbed layer; Described bottom adopts the non-woven fabrics be made up of acid fiber by polylactic.Composite construction of the present utility model can not only provide surface dry may just as well, not easily sensitization, and there is the well antibacterial and function that eliminates the unusual smell, meanwhile, there is good biodegradability, burden can not be caused to environment, the mankind can be brought and live more easily and beautiful green environment.

Description

A biodegradable disposable care product

technical field

The utility model relates to a nursing article, in particular to a biodegradable disposable nursing article.

Background technique

Statistics show that a woman needs 60 menstrual periods a year and needs about 480 sanitary napkins a year. Calculated based on a piece of sanitary napkin weighing 10 grams, 2 billion women will produce about 9.6 million tons of sanitary napkins a year. Garbage; in addition, with the continuous development of the economy and the continuous innovation of product quality, the amount of children's diapers in my country is increasing day by day; moreover, with the arrival of the aging population, the number of incontinent patients such as long-term bedridden patients and severe patients is also increasing. Supplies are also getting a lot of attention. Due to the relatively large volume of these "white garbage", landfilling according to the current treatment method needs to consume a large amount of landfill, and there have been serious problems related to human occupation of cultivated land and erosion of human living environment. Therefore, production and It is very necessary to use degradable disposable care products, change the materials used in existing products, and make them degrade after a certain period of time after being discarded and buried in the ground, so as to return human beings to a green living environment.

Chinese patent CN 2868262 discloses a sanitary pad that can be fully degraded. It is composed of degraded wood pulp paper and degraded spunlace non-woven fabric. on wood pulp paper and compounded with degraded waterproof wood pulp paper. Advantages: First, the reasonable design of the degraded wood pulp paper and the waterproof bottom layer and the contact surface layer in the sanitary pad can not only effectively absorb a small amount of liquid, but also slowly penetrate the waterproof bottom layer and the contact layer after the sanitary pad is used. The waterproof layer and the contact layer are forced to gradually differentiate and degrade, which effectively protects the environment; the second is to greatly reduce the production cost and meet people's life and psychological needs. However, it is only suitable for absorbing a small amount of liquid, has a single function, and cannot meet people's actual needs.

Chinese patent CN 101491687 discloses a corn polylactic acid fiber sanitary napkin, the surface layer is made of corn polylactic acid fiber spunlace non-woven fabric, the filling layer (inner layer) is made of corn polylactic acid short fiber, and the water-proof layer is made of corn polylactic acid fiber spacer fabric . The sanitary napkin of the utility model combines the advantages of polylactic acid fiber products and spunlace nonwoven fabrics, has soft and uniform hand feeling, good air permeability, water absorption and skin affinity, and the product has excellent antibacterial, antibacterial and mildew-proof properties. , and is fully biodegradable. However, it still has the characteristics of complex production process, difficulty in realizing the national standard that the sanitary napkin's water absorption rate must be greater than 7 times, and single function. Therefore, it faces a narrow market and user groups, and is subject to certain restrictions in popularization and application.

Utility model content

In order to overcome the deficiencies in the prior art, the utility model provides a biodegradable disposable nursing product that does not break, has good safety, strong water absorption and good water retention.

A biodegradable disposable care product, comprising a surface layer, a core layer and a bottom layer arranged sequentially from top to bottom, the surface layer adopts non-woven fabric made of polylactic acid fiber or polylactic acid fiber and wood pulp fiber A non-woven fabric made by mixing, the core layer includes a first absorbent layer and a second absorbent layer arranged in sequence from top to bottom, the first absorbent layer and the second absorbent layer are made of polylactic acid fiber and wood pulp The non-woven fabric made of mixed fibers, the first absorbing layer and the second absorbing layer are uniformly permeated with polymer water-absorbing particles; the bottom layer adopts the non-woven fabric made of polylactic acid fibers.

The surface layer of the utility model can quickly absorb liquid and guide it into the core layer to prevent leakage and seepage. Polylactic acid also provides good functions of antibacterial, odor removal and biodegradability; the core layer contains superabsorbent polymer water-absorbing particles to absorb liquid Complete and thorough; the breathable bottom layer containing polylactic acid fiber can quickly export heat while inhibiting bacteria and deodorizing, so that the human body can maintain a healthy state at any time. The utility model can be bonded as a whole after heating, without additional bonding through an adhesive, and will not affect the water-absorbing performance. In addition, the wood pulp fiber can also increase the water-absorbing speed.

Preferably, the thickness of the surface layer is 0.1-1.0 mm. While ensuring the absorption capacity, the comfort of the user is improved.

Preferably, the bottom layer has a thickness of 0.1-1.0 mm. While ensuring the absorption capacity, the comfort of the user is improved.

The surface layer of the utility model can adopt non-woven fabric made by mixing polylactic acid fiber and wood pulp fiber, wherein the weight percentage of polylactic acid fiber is 20-50%, and the weight percentage of wood pulp fiber is 50-80%. It can quickly absorb liquid and quickly guide it into the core layer to prevent leakage and seepage. At the same time, polylactic acid fiber provides good antibacterial and deodorizing functions and prolongs the use time.

In the first absorbent layer, the weight percentage of polylactic acid fibers is 20-40%, and the weight percentage of wood pulp fibers is 60-80%; in the second absorbent layer, the weight percentage of polylactic acid fibers is 20-40%, The weight percentage of wood pulp fiber is 60-80%.

The polylactic acid fiber is mixed with wood pulp fiber. The weight ratio of polylactic acid fiber and wood pulp fiber has an important impact on the performance of the product. With the increase of the polylactic acid fiber ratio, its air permeability and water drainage will increase, but tear The mechanical properties such as cracking index and folding resistance are reduced, therefore, need to carry out comprehensive consideration, to obtain suitable proportioning suitable for the utility model.

The hydrophobic property of the polylactic acid fiber of the utility model provides surface dryness for the disposable care products, and the smooth surface of the polylactic acid fiber provides the non-allergenicity for the disposable care products, and the polylactic acid has weak lactic acid characteristics, and has good antibacterial and antibacterial properties. The deodorization function can quickly export heat to keep the human body in a healthy state at any time. The composite structure of the utility model not only has the properties of being skin-friendly, soft and comfortable, but also can easily realize biodegradation without burdening the environment, and can bring humans a more relaxed life and a beautiful green environment.

Description of drawings

Fig. 1 is the structural representation of the utility model.

specific embodiment

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the utility model is not limited thereto.

Example 1

Referring to Fig. 1, a biodegradable disposable care product comprises a surface layer 1, a core layer and a bottom layer 2 arranged in sequence from top to bottom, and the surface layer 1 is made by mixing polylactic acid fibers and wood pulp fibers Among them, the weight percentage of polylactic acid fiber is 35%, and the weight percentage of wood pulp fiber is 65%, which can quickly absorb liquid and quickly guide it into the core layer to prevent leakage and seepage. At the same time, polylactic acid fiber provides good Antibacterial and deodorizing functions, prolonging the use time.

The core layer includes a first absorbent layer 3 and a second absorbent layer 4 arranged in sequence from top to bottom, and both the first absorbent layer 3 and the second absorbent layer 4 are made by mixing polylactic acid fibers and wood pulp fibers In the first absorbent layer 3, the weight percentage of polylactic acid fibers is 25%, and the weight percentage of wood pulp fibers is 75%; in the second absorbent layer 4, the weight percentage of polylactic acid fibers is 30% , the weight percentage of wood pulp fiber is 70%; the first absorbent layer 3 and the second absorbent layer 4 are evenly permeated with polymer water-absorbing particles.

The bottom layer 2 adopts a non-woven fabric made of polylactic acid fibers. The thickness of the surface layer is 0.1 mm, and the thickness of the bottom layer is 0.1 mm.

The preparation method of the above-mentioned biodegradable disposable care product comprises the following steps:

(1) Spread the fibers of the bottom layer on the workbench, and set up an exhaust fan and a vibrator under the bottom layer;

(2) Under the action of the exhaust fan, lay the fibers of the second absorbent layer on the bottom layer;

(3) Lay the polymer water-absorbing particles on the fibers of the second absorption layer, and under the action of the exhaust fan and the vibrator, make the polymer water-absorbing particles evenly infiltrate into the fibers of the second absorption layer;

(4) Under the action of the exhaust fan, the fibers of the first absorbent layer are laid on the second absorbent layer;

(5) Lay the polymer water-absorbing particles on the fibers of the first absorption layer, and under the action of the exhaust fan and the vibrator, the polymer water-absorbing particles are evenly infiltrated into the fibers of the first absorption layer;

(6) Under the action of the exhaust fan, the surface layer fibers are laid on the fibers of the first absorbent layer;

(7) Heating and pressing, so that the fibers in each layer and the fibers between the layers are bonded and formed, and then rolled and cut after cooling.

The surface layer of the utility model can quickly absorb liquid and guide it into the core layer to prevent leakage and seepage. Polylactic acid also provides good functions such as antibacterial, odor removal and biodegradability; the core layer is composed of superabsorbent polymer water-absorbing particles, absorbing The liquid is completely and thoroughly; the breathable bottom layer containing polylactic acid fiber can quickly export heat while inhibiting bacteria and deodorizing, keeping the human body healthy at any time and prolonging the use time. The utility model can play the role of overall bonding after heating, and does not need to be bonded by an additional adhesive, which will not affect the water absorption performance. In addition, the good flow conductivity of the wood pulp fiber can also increase the water absorption speed.

Example 2

With reference to Fig. 1, a kind of biodegradable disposable nursing article comprises the surface layer 1, core layer and bottom layer 2 that are arranged in sequence from top to bottom, and described surface layer 1 adopts the non-woven fabric that is made of polylactic acid fiber, so The core layer includes a first absorbent layer 3 and a second absorbent layer 4 arranged in sequence from top to bottom, and both the first absorbent layer 3 and the second absorbent layer 4 are made of polylactic acid fibers mixed with wood pulp fibers Non-woven fabric, in the first absorbent layer 3, the weight percentage of polylactic acid fibers is 20%, and the weight percentage of wood pulp fibers is 80%; in the second absorbent layer 4, the weight percentage of polylactic acid fibers is 40%, The weight percent of wood pulp fiber is 60%.

The first absorbing layer 3 and the second absorbing layer 4 are evenly permeated with water-absorbing polymer particles; the bottom layer 2 is made of non-woven fabric made of polylactic acid fibers. The thickness of the surface layer is 0.5mm, and the thickness of the bottom layer is 0.5mm.

Example 3

Referring to Fig. 1, a biodegradable disposable care product comprises a surface layer 1, a core layer and a bottom layer 2 arranged in sequence from top to bottom, and the surface layer 1 is made by mixing polylactic acid fibers and wood pulp fibers The core layer includes a first absorbent layer 3 and a second absorbent layer 4 arranged in sequence from top to bottom, the first absorbent layer 3 and the second absorbent layer 4 are made of polylactic acid fiber and wood pulp The non-woven fabric made of mixed fibers, the first absorbent layer 3 and the second absorbent layer 4 are uniformly permeated with water-absorbing polymer particles; the bottom layer 2 is made of polylactic acid fiber non-woven fabric.

In the surface layer 1, the weight percentage of polylactic acid fibers is 45%, and the weight percentage of wood pulp fibers is 55%; in the first absorbent layer 3, the weight percentage of polylactic acid fibers is 30%, and the weight percentage of wood pulp fibers 70%; in the second absorbent layer 4, the weight percentage of polylactic acid fiber is 30%, and the weight percentage of wood pulp fiber is 70%. The thickness of the surface layer is 0.3 mm, and the thickness of the bottom layer is 0.3 mm.

Example 4

Referring to Fig. 1, a biodegradable disposable care product comprises a surface layer 1, a core layer and a bottom layer 2 arranged in sequence from top to bottom, and the surface layer 1 is made by mixing polylactic acid fibers and wood pulp fibers The core layer includes a first absorbent layer 3 and a second absorbent layer 4 arranged in sequence from top to bottom, the first absorbent layer 3 and the second absorbent layer 4 are made of polylactic acid fiber and wood pulp The non-woven fabric made of mixed fibers, the first absorbent layer 3 and the second absorbent layer 4 are uniformly permeated with water-absorbing polymer particles; the bottom layer 2 is made of polylactic acid fiber non-woven fabric.

In the surface layer 1, the weight percentage of polylactic acid fibers is 50%, and the weight percentage of wood pulp fibers is 50%; in the first absorbent layer 3, the weight percentage of polylactic acid fibers is 40%, and the weight percentage of wood pulp fibers 60%; in the second absorbent layer 4, the weight percentage of polylactic acid fibers is 20%, and the weight percentage of wood pulp fibers is 80%. The thickness of the surface layer is 0.4mm, and the thickness of the bottom layer is 0.6mm.

Claims (3)

1. a bio-degradable expendable nursing materials, comprise the surface layer, sandwich layer and the bottom that from top to bottom arrange in turn, it is characterized in that: described surface layer adopts the non-woven fabrics be made up of acid fiber by polylactic or the non-woven fabrics being mixed with wood pulp cellulose by acid fiber by polylactic and make, described sandwich layer comprises the first absorbed layer and the second absorbed layer that from top to bottom arrange in turn, first absorbed layer and the second absorbed layer all adopt and are mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, and are evenly impregnated with water absorbing polymer particle respectively in described first absorbed layer and the second absorbed layer; Described bottom adopts the non-woven fabrics be made up of acid fiber by polylactic.

2. bio-degradable expendable nursing materials according to claim 1, is characterized in that: described surface thickness is 0.1 ~ 1.0mm.

3. bio-degradable expendable nursing materials according to claim 1, is characterized in that: described underlayer thickness is 0.1 ~ 1.0mm.